Curated list of free and low cost AI tools, LLM APIs, IDEs, agents, and infrastructure for building real AI apps
See the code
Curated list of free LLM APIs, coding copilots, AI IDEs, agents, and infrastructure tools for building real AI applications.
Goal: Help developers build AI apps without paying $200/month.
[!NOTE]
Please don't abuse these services, else we might lose them for everyone. The number becomes 550+ when you add all the models and sub services of all the tools provided. When raising issues or pull requests please dont add your own paid, expensive personal projects.
[!WARNING]
October 2026 Model Generation Leap: Major providers have transitioned to next-generation architectures: OpenAI introduced the GPT-6 family (GPT-6 Astra, GPT-6.1 Sol, GPT-6 Luna); Anthropic deployed the Claude 5.5 generation (Claude Opus 5.5, Claude Sonnet 5.5, Claude Haiku 5.5); Google rolled out gemini 3.8 Flash / Flash-Lite as the default workhorse and previewed Gemini 4 Argon. The new baseline for high-throughput coding and daily development is Claude Sonnet 5.5, GPT-6.1 Sol, and gemini 3.8 Flash, while complex multi-hour reasoning and autonomous sandboxing target GPT-6 Astra and Claude Opus 5.5.Pricing & Billing Updates: Windsurf switched to a quota-based model (Pro $20, Teams $40, new Max $200) on Mar 18. Trae moved to a 5-tier token system (Lite $3, Pro $10, Pro+ $30, Ultra $100) on Feb 24. Qoder's launch promo ended — standard standalone pricing settled at Pro $30/mo (2,000 credits, or CNY 59/mo on Qoder CN All-in-One), Teams $40/seat (3,000 credits). Cursor split Teams into Teams Standard ($40/seat) & Teams Premium ($120/seat), credited $70 third-party usage on Pro+ ($60/mo), and shifted Bugbot to ~$1.00–$1.50/run. GitHub Copilot summer credit promotion ended Sep 1, 2026 (reverting to standard $19 / 1,900 credits for Business and $39 / 3,900 credits for Enterprise). Xiaomi MiMo V2.5 API permanent pricing schedule flattened to $1.00/1M input, $3.00/1M output, and $0.20/1M cached across all context lengths up to 1M tokens.
Most AI tool lists are:
This repo focuses only on:
Unlike: awesome-ai (general list), ai-collection (marketing focus), toolify (affiliate-heavy)
This is for: Builders who want to ship AI features this week.
If this repo helped you build something or saved you money:
⭐ Star this repo — it helps more builders discover free AI resources.
[🔄 Share with your team] — spread the knowledge.
📝 Contribute — found a new free tier? Updated pricing? PRs welcome!
2026-10-05 (5/10/26)
google-deepmind/antigravity), MemoryPalace (milla-jovovich/mempalace), AWS Kiro (kiro.dev), and QuantFlow Pilot (qf-studio/pilot).website/src/data/tools.ts and website/src/data/stacks.ts.# anchor links for PR review and CLI tools (Bito, Sourcery, ForgeCode, Goose, OhMyPi) with direct links to official repositories and websites.README.md and website/src/data/tools.ts.--fiable → --reliable) in free-coding-models usage documentation.2026-06-25
2026-06-16
2026-05-18
2026-04-12
2026-04-11
| Provider | Models | Free Tier | Credit Card |
|---|---|---|---|
| NVIDIA NIM | 46 | 40 req/min | No |
| OpenRouter | 25 | 50/day (1K/day with $10) | No |
| Groq | 20+ | 1K-14.4K req/day | No |
| Google AI Studio | 9 | 5-500 req/day | No |
| Cloudflare Workers AI | 47+ | 10K neurons/day | No |
| Cerebras | 4 | 1.5M tokens/day | No |
| Mistral La Plateforme | 10+ | 1B tokens/month | No |
| IDE | Pro-grade Models | Free Tier Limit | Credit Card |
|---|---|---|---|
| Cursor | Claude Sonnet 5.5 / GPT-6.1 Sol / Custom | Limited free tier (Hobby) | No |
| Trae | Doubao / Claude 3.5/3.7 / GPT-4o (Region-dependent) | 5,000 auto-completions/month | No |
| Windsurf | Claude Sonnet 5.5 / Opus 5.5, GPT-6.1 Sol | Light quota (daily/weekly) | No |
| Qoder | Qwen3.6-Plus, Qwen3-Coder-480B, GPT-6.1 Sol | Unlimited completions + limited chat | No |
| Tool | Starting Price | Free Tier | Features | Credit Card |
|---|---|---|---|---|
| PrixAI | Free / $10 paid plan | Free trial available | Unlimited reviews Auto-fix PRs, issue planning | No |
| Bito | Free / $25 paid plans | Free trial available | AI PR reviews/Unlimited reviews | No |
| Sourcery | ~$12/month | Free trial available | Code quality reviews | No |
| Tool | Pro-grade Models | Free Tier Limit | Credit Card |
|---|---|---|---|
| Gemini CLI | gemini 3.8 Flash / Flash-Lite | 1,500 req/day | No |
| Rovo Dev CLI | Claude Sonnet 5.5, GPT-6.1 Sol | Enterprise Cloud add-on (5M tok/day) | Paid Atlassian Cloud org required |
| Warp | GPT-6.1 Sol, Claude Sonnet 5.5 | 150 credits/mo (first 2 mo), 75/mo after | No |
| GitHub Copilot | Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6 Astra | 50 chat + 2K completions/month | No |
| Jules | gemini 3.8 Flash / Gemini 3 Pro | 15 tasks/day | No |
| Amazon Q Developer | Claude 3.5 Sonnet (AWS Bedrock) | 50 interactions/month (AWS Builder ID) | No |
| OpenCode | 75+ providers (BYOK) + Go bundle | Free (Zen) / Go $10/mo | No |
| Xiaomi MiMo | MiMo-V2.5-Pro, MiMo-V2.5, MiMo-V2-Omni | Free API credits | No |
| ForgeCode | 300+ models via OpenRouter | 10K tokens/day | No |
| RooCode | Bring your own keys | Unlimited (BYOK) | No |
| Goose | Bring your own keys | Unlimited (BYOK) | No |
| OhMyPi | Bring your own keys | Unlimited (BYOK) | No |
Models achieving ≥60% on SWE-bench Verified / Pro or leading agentic benchmarks (Terminal-Bench 4.0, DeepSWE v1.1):
| Model | Benchmark / Score | Provider | Status |
|---|---|---|---|
| Claude Opus 5.5 | Flagship Enterprise (~86% SWE) | Anthropic | Flagship Reasoning & Security |
| GPT-6 Astra | Flagship Computer Operator (~85% SWE) | OpenAI | Autonomous Agentic Flagship |
| GPT-6.1 Sol | Matches Astra on DeepSWE v1.1 ($2/$10) | OpenAI | Workhorse Agent |
| Claude Sonnet 5.5 | 70.6% Terminal-Bench 4.0 / 55.5% CursorBench 4.0 | Anthropic | High-Speed Agentic Coder |
| Gemini 4 Argon | Frontier Long-Horizon (1M output tokens) | Frontier Reasoning (Preview) | |
| gemini 3.8 Flash | 84.2% CharXiv / High-Throughput | Default Fast Workhorse | |
| Qwen3.6-Plus | 71.2% SWE-bench | Alibaba | Premium Open-weight |
Note:
[verify]indicates scores need verification from official sources. Always check current benchmarks before making decisions.
Ready-made combinations for different use cases. Copy-paste these configurations.
| Layer | Tool | Why |
|---|---|---|
| IDE | Cursor Hobby / Qoder | Limited completions + Claude Sonnet 5.5 / GPT-6.1 Sol chat |
| CLI | Gemini CLI (3.5 Flash) / OpenCode Zen | 1,500 req/day Flash, free open-source models |
| API | OpenRouter + Groq | 50 req/day + 14.4K req/day combo |
| Local | Ollama + Qwen3.6-Plus | Unlimited offline |
| Automation | n8n Self-hosted | Unlimited workflows |
| Vector DB | ChromaDB / LanceDB | Free local storage |
Total Cost: $0/month
| Layer | Tool | Speed |
|---|---|---|
| Inference | Groq / Cerebras | 2,000 tokens/sec (Cerebras) |
| Coding | Qwen3.6-Plus via Groq | 1,000 req/day (71.2% SWE) |
| Agent | OpenCode Zen | MiniMax M2.5 (80.2%), DeepSeek V4 |
| Cache | DeepSeek V4 | $0.30/$0.50 per 1M, 90% cache discount |
| Edge | Cloudflare Workers AI | Global CDN |
Best for: Real-time apps, trading bots, live coding assistants
| Layer | Tool | Cost |
|---|---|---|
| IDE | Trae Lite | $3/mo ($5 basic usage + bonus) |
| IDE | Trae Pro | $10/mo ($20 basic usage + bonus, SOLO mode) |
| API | OpenRouter $10 | 1K req/day + BYOK 1M/month free |
| CLI | OpenCode | Free (BYOK) or Go $10/mo |
| CLI | Xiaomi MiMo Lite | $6/mo (60M credits, ~120 tasks) |
| CLI | Gemini CLI | gemini 3.8 Flash / Flash-Lite |
| Local | Ollama | Free |
| Embeddings | Jina AI | Free tier |
Total Cost: ~$10/month for pro-grade everything
| Layer | Tool | Privacy |
|---|---|---|
| Models | Ollama + Llama 3.3 / Qwen3-Coder | Runs locally |
| IDE | Continue.dev + VS Code | BYO local models |
| CLI | Aider + local Ollama | Git-integrated, offline |
| Chat UI | Open WebUI | Self-hosted ChatGPT alternative |
| Vector DB | ChromaDB / LanceDB | Local embeddings storage |
| Speech | Whisper (local) | Offline transcription |
Best for: Healthcare, legal, finance - any sensitive data
| Component | Tool | Role |
|---|---|---|
| Orchestrator | n8n / Gumloop | Workflow automation |
| Reasoning | DeepSeek R1 / DeepSeek V4 | Complex decision making |
| Execution | Qwen3.6-Plus | Code generation |
| Memory | ChromaDB / Supabase Vector | Long-term context |
| Embeddings | Jina Embeddings v3 (1M tokens/day free) | Semantic search |
| Monitoring | LangSmith | Trace agent steps |
Best for: Autonomous research assistants, code review bots, data processing pipelines
| Component | Tool | Purpose |
|---|---|---|
| Framework | LlamaIndex / LangChain | RAG orchestration |
| Vector DB | ChromaDB / Weaviate / Supabase | Document storage |
| Embeddings | E5-Mistral-7B (best accuracy) | Text vectorization |
| Chunking | LlamaIndex | Smart document splitting |
| Reranking | Cohere Rerank | Improve retrieval accuracy |
| LLM | Claude Sonnet 5.5 / GPT-6.1 Sol | Answer generation |
| Eval | RAGAS | Measure RAG performance |
Best for: Document QA, legal document analysis, knowledge bases
Limits: 20 RPM, 29 free models (262K context max, March 2026), models share quota
Unified API gateway for 100+ LLMs. OpenAI and Anthropic SDK-compatible. China-friendly with Hong Kong direct access (100-300ms latency). No monthly fees, pay per token.
Limits: Not published | 1 free model
Data is used for training when used outside UK/CH/EEA/EU.
Rate limits: Tier 1 (default): 250 RPD | Tier 2: Requires $250 spend + 30 days
| Model | Free Tier Limits |
|---|---|
| Gemini 3.1 Pro [verify: now paid] | 250 RPD (Tier 1) |
| gemini 3.8 Flash | 1,500 RPD (Primary high-throughput, low-latency) |
| gemini 3.8 Flash-Lite | High-throughput lightweight tier |
| Gemini 3 Flash | 1,500 RPD |
| All others | Check console |
Note: Data training outside UK/CH/EEA/EU still applies.
Phone number verification required. Models tend to be context window limited.
Limits: 1K credits signup, up to 5K total, 40 RPM (phone verify required)
Free tier requires opting into data training; phone verification required
Limits (per-model): 1 req/s, 500K tokens/min, 1B tokens/month
Self-hosted, open-source AI gateway for routing requests across 20+ providers through an OpenAI-compatible API.
AI gateway with curated models. Free models may use data for improvement.
| Model | Limits |
|---|---|
| GPT-OSS 120B | 30 req/min, 60K tokens/min, 900 req/hour, 1.5M tokens/day |
| Llama 3.1 8B | Same limits as above |
| Qwen3-235B | Available via API |
| Model | Limits |
|---|---|
| Llama 3.1 8B | 14,400 req/day, 6K tokens/min |
| Llama 3.3 70B | 1,000 req/day, 12K tokens/min |
| Llama 4 Maverick/Scout | 1,000 req/day |
| Whisper Large v3/v3 Turbo | 7,200 audio-sec/min, 2,000 req/day |
| Qwen3-32B | 1,000 req/day, 6K tokens/min |
| Kimi K2 Instruct | 1,000 req/day, 10K tokens/min |
| GPT-OSS 20B/120B | 1,000 req/day, 8K tokens/min |
| And 15+ more |
Limits: 10,000 neurons/day
| Provider | Credits | Duration | Notes |
|---|---|---|---|
| Fireworks | $1 | Permanent | Various open models |
| Baseten | $30 | Permanent | Pay by compute time |
| Nebius | $1 | Permanent | Various open models |
| Novita | $0.50 | 1 year | Various open models |
| AI21 | $10 | 3 months | Jamba family |
| Upstage | $10 | 3 months | Solar Pro/Mini |
| NLP Cloud | $15 | Permanent | Phone verification required |
| Alibaba Cloud | 1M tokens/model | 90 days | Qwen models |
| Modal | $5-30/month | Monthly | Pay by compute time |
| Inference.net | $1 (+$25 on survey) | Permanent | Various open models |
| Hyperbolic | $1 | Permanent | DeepSeek, Llama, Qwen, GPT-OSS |
| SambaNova Cloud | $5 | 3 months | Llama, Qwen, DeepSeek |
| Scaleway | 1M tokens | Permanent | DeepSeek, Llama, Mistral, Gemma |
| Vercel AI Gateway | $5 credit | Monthly | Requires active Vercel account |
| Provider | Models | Free Tier | Environment Variable |
|---|---|---|---|
| ZAI | 7 | Free tier (generous quota) | ZAI_API_KEY |
| SiliconFlow | 6 | 1K RPM, 50K TPM | SILICONFLOW_API_KEY |
| OVHcloud AI Endpoints | 8 | 2 req/min (no key), 400 RPM with key | OVH_AI_ENDPOINTS_ACCESS_TOKEN |
| Chutes AI | 4 | Free community GPU-powered | CHUTES_API_KEY |
| DeepInfra | 4 | 200 concurrent requests | DEEPINFRA_API_KEY |
| Replicate | 2 | 6 req/min (no payment), up to 3K RPM with payment | REPLICATE_API_TOKEN |
Full-featured integrated development environments with built-in AI assistance.
Model: Adaptive routing with Claude Sonnet 5.5, Claude Opus 5.5, and GPT-6.1 Sol (accessible via AI Gateway / custom config)
Models: Doubao (natively in China), Claude 3.5/3.7 Sonnet & GPT-4o (international routing)
Models: OpenAI (GPT-6.1 Sol), Anthropic (Claude Sonnet 5.5, Claude Opus 5.5), Google, xAI
Pricing | Pricing Announcement (Mar 18, 2026)
Models: Multi-agent (frontend/backend/testing agents)
Best for: Full-stack development with natural language direction
Models: Qwen3.6-Plus (71.2% SWE), Qwen-Coder-Qoder, GPT-6.1 Sol
Pricing (standard, post-promo):
Docs | Pricing | Adjustment Notice
Models: Bring your own API keys (any provider)
Model: Base model (Llama 3.3 70B), pro-grade models require subscription
Models: Local models + cloud models with limited quota
Models: Claude Sonnet 5.5, GPT-6.1 Sol, Llama 3.3 70B, proprietary models
Models: Unspecified models
Models: Unspecified models
Models: Proprietary models (not frontier)
General-purpose chat interfaces with free tiers.
| Platform | Free Model | Key Capabilities | Limitations |
|---|---|---|---|
| ChatGPT | GPT-6.1 Sol | Sora 3, DALL-E 3, GPT Store | ~20 msgs/5hr |
| Gemini | gemini 3.8 Flash | 2M Context, 20 Deep Research/mo | Research quota |
| Claude | Claude Sonnet 5.5 / Haiku 5.5 | Technical reasoning | ~30 msgs/5h |
| Grok | Grok 4.2 | Aurora 2 images, voice | 15 msgs/12hr |
| Mistral Le Chat | Mistral Medium 3 | Structured output | Fewer integrations |
Command-line tools for AI-assisted coding in your terminal.
Models: gemini 3.8 Flash, gemini 3.8 Flash-Lite, Gemini 3 Flash
npm install -g @google/gemini-cli[!IMPORTANT]
Enterprise SaaS Add-on: Rovo Dev CLI is tied directly to paid Atlassian Cloud (Jira/Confluence) organizations. There is no open, standalone free tier for independent developers without an active paid Atlassian Cloud organization.
Models: Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6 Astra (Ultra)
Models: GPT-6.1 Sol, Claude Sonnet 5.5, gemini 3.8 Flash
167k+ GitHub stars • 850+ contributors • 6.5M monthly users • Apache 2.0
Models: 75+ providers via BYOK — Anthropic, OpenAI, Google, Groq, AWS Bedrock, Azure, OpenRouter, local Ollama
OpenCode Go (recommended for getting started): Subscription bundle of curated open-weight models
OpenCode Zen: Pay-per-request credits (PAYG from $20)
Install: curl -fsSL https://opencode.ai/install | bash • brew install opencode • npm install -g opencode-ai
Models: Claude Sonnet 5.5, GPT-6.1 Sol, Gemini Flash, Grok Code Fast 1 (Free tier); Claude Opus 5.5 & GPT-6 Astra available in Pro/Pro+/Max/Business/Enterprise only
Plans Details | Usage-Based Billing Announcement (Apr 27, 2026)
Model: gemini 3.8 Flash / Gemini 3 Pro (upgraded from 2.5 Pro)
Amazon's generative AI-powered assistant for software development (evolved from Amazon CodeWhisperer).
Models: Claude 3.5 Sonnet & AWS Bedrock foundation models
Xiaomi's subscription plan for AI coding scenarios — bundled access to MiMo flagship models Compatible with OpenCode, OpenClaw, Claude Code, and other mainstream toolchains
Models: MiMo-V2.5-Pro, MiMo-V2.5, MiMo-V2.5-TTS, MiMo-V2-Omni
Monthly Pricing:
| Tier | Price (USD) | Price (CNY) | Monthly Credits | ~Tasks/mo |
|---|---|---|---|---|
| Lite | $6/mo | ¥39/mo | 60M | ~120 medium-complexity |
| Standard | $16/mo | ¥99/mo | 200M | ~400 |
| Pro | $50/mo | ¥329/mo | 700M | ~1,400 |
| Max | $100/mo | ¥659/mo | 3B Credits | ~6,000 tasks (corrected from 82B typo; 2.5B–3.5B range) |
API Pricing (permanent schedule announced May 27, 2026):
| Model | Input (per 1M) | Output (per 1M) | Cache Hit (per 1M) |
|---|---|---|---|
| MiMo V2.5 Pro | $1.00 | $3.00 | $0.20 |
| MiMo V2.5 Standard | $0.20 | $0.60 | $0.002 |
Models: Claude Sonnet 5.5 (default high-velocity coding), Claude Opus 5.5 (architectural refactoring), Claude Haiku 5.5
Models: GPT-6.1 Sol, GPT-6 Astra (with up to 8x faster token generation via Codex Ultrafast)
Models: OpenAI- and Anthropic-compatible endpoints, Gemini, and local models
npm install -D agent-qa && npx agent-qa initDocumentation | License | Last verified: 2026-08-16
These services provide API access to coding-optimized models for tools like Cursor, Continue.dev, Cline, etc.
| IDE | Entry Tier | Credits/Requests | Key Features |
|---|---|---|---|
| Cursor | Pro ($20/mo) | $20/mo credit pool | Unlimited completions, Auto mode |
| Trae | Lite ($3/mo) / Pro ($10/mo) | $5 / $20 basic usage + bonus | SOLO mode, 5-tier token system |
| Windsurf | Pro ($20/mo) | Standard quota (daily/weekly) | Multi-provider, Claude Sonnet 5.5 / Opus 5.5, Max $200 tier |
| Qoder | Pro ($30/mo) | 2,000 credits | Quest Mode, Experts Mode |
| Codeium | Pro ($10/mo) | Unlimited | Claude Sonnet 5.5, GPT-6 access |
| Tool | Entry Tier | Credits/Requests | Key Features |
|---|---|---|---|
| Claude Code | Pro ($20/mo) | ~225 messages/5h | Sonnet 5.5 + Opus 5.5 |
| Warp | Build ($20/mo) | 1,500 credits/month | BYOK available |
| GitHub Copilot | Pro ($10/mo) | $15 monthly AI Credits | Usage-based token billing since Jun 1, 2026 |
| OpenCode | Go ($10/mo) | $12/5h, $30/wk, $60/mo | Apache 2.0, 75+ providers, BYOK |
| Amazon Q Developer | Pro ($19/mo) | Enterprise limits & admin | Bedrock models, IDE & AWS CLI |
| Xiaomi MiMo | Lite ($6/mo) | 60M credits | OpenCode/Claude Code compatible |
Running open-weight frontier models locally provides unlimited coding assistance without API costs.
Notable Local Models (2026):
Find the fastest free coding model in seconds. Ping 271 models across 25 providers in real-time.
npm install -g free-coding-models
free-coding-models
F, persisted across sessions# Most reliable model right now
free-coding-models --reliable
# Configure Goose with S-tier model
free-coding-models --goose --tier S
# NVIDIA top models only
free-coding-models --origin nvidia --tier S
# JSON output for scripting
free-coding-models --tier S --json | jq -r '.[0].modelId'
| Flag | Launches |
|---|---|
--opencode | 📦 OpenCode CLI |
--openclaw | 🦞 OpenClaw |
--goose | 🪿 Goose |
--aider | 🛠 Aider |
--qwen | 🐉 Qwen Code |
--continue | ▶️ Continue CLI |
--cline | 🧠 Cline |
--gemini | ♊ Gemini CLI |
--rovo | 🦘 Rovo Dev CLI |
| And 8 more... |
| Tier | SWE-bench | Best For |
|---|---|---|
| S+ | ≥75% | Claude Opus 5.5, GPT-6 Astra, GPT-6.1 Sol, Claude Sonnet 5.5 |
| S | 65-75% | Qwen3.6-Plus (71.2%), gemini 3.8 Flash, DeepSeek-V4-Flash |
| A+/A | 40–60% | Solid alternatives |
| A-/B+ | 30–40% | Smaller tasks |
| B/C | < 30% | Code completion |
All 271 models allow commercial use of generated output. You own what the models generate.
| License | Models | Commercial |
|---|---|---|
| Apache 2.0 | Qwen3/Qwen2.5 Coder, GPT-OSS 120B/20B, Devstral Small 2, Gemma 4, MiMo V2 Flash | ✅ Unrestricted |
| MIT | GLM 4.5/4.6/4.7/5, MiniMax M2.1, Devstral 2 | ✅ Unrestricted |
| Llama Community License | Llama 3.3 70B, Llama 4 Scout/Maverick | ✅ Attribution required. >700M MAU → separate Meta license |
| DeepSeek License | DeepSeek V3/V3.1/V3.2, R1 | ✅ Use restrictions on model (no military, no harm) — output is yours |
| NVIDIA Nemotron License | Nemotron Super/Ultra/Nano | ✅ Updated Mar 2026, now near-Apache 2.0 permissive |
| MiniMax Model License | MiniMax M2, M2.5 | ✅ Royalty-free, non-exclusive. Prohibited uses policy applies to model |
| Proprietary (API) | Claude (Rovo), Gemini (CLI), Perplexity Sonar, Mistral Large, Codestral | ✅ You own outputs per provider ToS |
| OpenCode Zen | MiMo V2 Pro/Flash/Omni Free, MiniMax M2.5 Free, Nemotron 3 Super Free | ✅ Per OpenCode Zen ToS |
Key Points:
⚠️ Disclaimer: This is a summary, not legal advice. License terms can change. Always verify the current license on the model's official page before making legal decisions.
[verify] tag: Indicates information needs verification from official sources. Pricing, limits, and model availability change frequently.| Program | What You Get | Requirements |
|---|---|---|
| GitHub Student Pack | Free Copilot Pro for students | Verify with .edu email |
| GitHub Copilot Free | 50 chat + 2,000 completions/month | VS Code users |
| Copilot Pro for Teachers/Maintainers | Free Copilot Pro | Open source maintainers & educators |
Visual orchestration tools for building autonomous AI agents without coding.
| Platform | Free Tier | Best For | Key Features |
|---|---|---|---|
| Make (Integromat) | 1,000 ops/month | Visual builders | Drag-and-drop AI Agents, 3,000+ app integrations |
| n8n | Unlimited (self-hosted) | Technical teams | Self-hosted RAG systems, private data automation |
| Gumloop | 2,000 credits/month | No-code agents | Natural-language builder, "Gummie" troubleshooting agent |
| Relay.app | Generous free plan | Beginners | Simple agentic workflows |
| Activepieces | 1,000 tasks/month | Open-source | Flat pricing, self-hostable |
| Podium | Entry-level tiers | Sales/communication | 24/7 lead response AI agents |
AI-powered tools for conversational data analysis and narrative visualization.
| Tool | Function | Free Tier Detail | Key Feature |
|---|---|---|---|
| Julius | Chat-with-data | Upload spreadsheets, generate instant visualizations | |
| Anomaly AI | AI Dashboards | Generate interactive dashboards from natural language | |
| Flourish | Data Storytelling | No-code interactive maps, "scrollytelling" features | |
| Datawrapper | Publishing | Publish-ready charts in seconds, journalism-focused | |
| Looker Studio | Marketing Data | Seamless Google Analytics/Ads integration | |
| Power BI Desktop | Microsoft reports | Copilot recommendations, local report building | |
| AI for Database | Natural language DB queries | Freemium - free tier available | Connect any DB (PostgreSQL, MySQL, MongoDB) and query in plain English — no SQL needed, with self-refreshing dashboards and workflow automation |
Professional-grade content creation with generous free tiers.
| Tool | Output | Free Tier | Key Capability |
|---|---|---|---|
| Veo | Video | Basic Free | Cinematic clips with realistic motion and sound |
| Sora 3 (via ChatGPT) | Video | Limited free tier | Deep ChatGPT integration, high-quality video |
| DALL-E 3 (via ChatGPT) | Image | Limited free tier | High-detail image generation |
| Synthesia | Video Avatars | Free individual plan | "Video Agents" in 120+ languages |
| 1 More Shot | Music Videos | Free plan | Advanced lip-sync, frame-by-frame control |
| Leonardo.Ai | Images | 150 tokens/day (~8–15 images) | Commercial use allowed |
| Recraft AI | Vector/SVG | 30 credits/day | Infinitely scalable icons and logos |
| Ideogram | Images | 10-20 prompts/day | Perfect text rendering, "Magic Prompt" |
| Suno AI | Music | 50 credits/day (~10 tracks) | Complete songs with vocals and instruments |
| ElevenLabs | Voice | Basic Free | Realistic voice cloning |
| Canva AI | Design | Robust free tier | AI design assets, brochures, short videos |
| PhotoGenerAI | Image | Free credits, no sign-up | AI photo generation & editing in the browser |
| Tool | Function | Free Tier Detail | Key Feature |
|---|---|---|---|
| Grammarly | Writing | 100 AI prompts/month | Rewrites and tone detection |
| LanguageTool | Grammar | 10,000 characters/text | 25+ languages, open-source |
| Fathom | Meetings | Forever Free | Records/transcribes Zoom/Teams, auto-sync to CRM |
| NotebookLM | Research | Free | Audio Overview podcasts, grounded in your documents |
| Humata | PDF Analysis | 60 pages/month | Clickable source citations |
| QuillBot | Rewriting | 125 words/time | Fluency & Standard modes |
| DeepL | Translation | Basic Free | Incognito sensitive mode |
Medical AI:
| Tool | Pricing | Key Value |
|---|---|---|
| iatroX | Free | Adaptive Q-Bank, NICE/BNF clinical reference |
| DxGPT | Free | Diagnostic assistant (500K+ users, 6K doctors) |
| OpenEvidence | Free (US verified) | Evidence-grounded search, ambient note generation |
Legal AI:
| Tool | Pricing | Key Value |
|---|---|---|
| DocLegal.Ai | $10/month | Clause suggestion, risk detection |
| Doculex.ai | Varies | Case-data-driven drafting from medical records |
| Spellbook | 7-day trial | In-editor contract analysis |
| Harvey AI | Enterprise | Regulatory matters, high security |
| Tool | Function |
|---|---|
| Wellows | AI Visibility Score tracking across ChatGPT, Gemini, Perplexity |
| Google SGE Labs | See how AI Overviews interpret target keywords |
| NeuronWriter | AI content scoring |
| Surfer SEO | Content optimization |
| Jasper | AI copywriting with brand voice |
| Writesonic | Scalable copywriting |
| Tool | Function | Description |
|---|---|---|
| Open WebUI | Local Chat Interface | ChatGPT-like experience running entirely offline with Ollama |
| Whisper (OpenAI) | Speech-to-Text | Most accurate open-source transcription |
| Piper | Text-to-Speech | High-quality offline audio generation |
| ComfyUI | Image Generation | Node-based interface for Stable Diffusion |
| Zed | AI IDE | 50 AI prompts/month, native performance, high speed |
| Void IDE | Agent-first IDE | Multi-agent frontend/backend/testing |
Low-latency APIs for voice assistants, live coding copilots, trading tools, and realtime chat.
| Provider | Latency | Best For | Free Tier |
|---|---|---|---|
| Groq Streaming | ~50-150ms (0.4ms/token) | Live coding, chat | 14.4K req/day |
| OpenAI Realtime API | Low | Voice assistants, agents | No free tier (pay-per-use only, trial credits new accounts) |
| Gemini Live API | Low | Multimodal streaming | Dynamic caps (varies by prompt complexity) |
| Cerebras | 2,400 tok/sec (Qwen3.6) | Batch + streaming | 1.5M tokens/day |
| Cloudflare Workers AI | Edge | Global low-latency | 10K neurons/day |
| Provider | Type | Latency | Free Tier |
|---|---|---|---|
| Deepgram | STT streaming | ~300ms | $200 credits |
| AssemblyAI Streaming | Realtime STT | ~400ms | 50 hours/month |
| Groq Whisper | STT fast | ~200ms | 2,000 req/day |
| ElevenLabs Streaming | TTS streaming | ~100ms | 10K chars/month |
| OpenAI Realtime | STT + LLM + TTS | ~200ms | Limited |
Best for:
Speech-to-text and text-to-speech models comparison.
| Model | Provider | Accuracy | Speed | Free Tier | Best For |
|---|---|---|---|---|---|
| Whisper Large v3 | OpenAI/Groq/Local | Excellent | Fast | 2,000 req/day (Groq) | General purpose, local |
| Deepgram Nova | Deepgram | Superior | Very Fast | $200 credits | Production, enterprise |
| AssemblyAI | AssemblyAI | Excellent | Fast | 50 hours/month | Streaming, diarization |
| Whisper API | OpenAI | Excellent | Medium | Pay-per-use | Reliable, consistent |
| Google Speech | Google Cloud | Good | Fast | 60 min/month | Google ecosystem |
| Whisper (local) | OpenAI/Ollama | Excellent | GPU-dependent | Unlimited offline | Privacy, cost control |
| Model | Provider | Quality | Speed | Free Tier | Best For |
|---|---|---|---|---|---|
| ElevenLabs | ElevenLabs | 🏆 Best | Fast | 10K chars/month | Voice cloning, pro voice |
| OpenAI TTS | OpenAI | Excellent | Fast | Pay-per-use | Reliable, cheap |
| Piper | Local | Good | Very Fast | Unlimited offline | Privacy, self-hosted |
| Bark | Suno/Local | Good | Medium | Free (local) | Expressive, local |
| Google TTS | Google Cloud | Good | Fast | 1M chars/month | Google ecosystem |
| WhisperSpeech | Local | Good | Fast | Unlimited | Whisper-based TTS |
| API | Input | Output | Latency | Use Case |
|---|---|---|---|---|
| OpenAI Realtime | Audio | Audio | ~200ms | Voice agents |
| Deepgram Voice | Audio | Text/Audio | ~300ms | Voice bots |
| AssemblyAI LeMUR | Audio | LLM response | ~1s | Voice RAG |
Comparison of image generation models and APIs.
| Model | Provider | Quality | Speed | Free Tier | Best For |
|---|---|---|---|---|---|
| FLUX.2 | Black Forest Labs | 🏆 Excellent | Fast | Local/Replicate | High quality, open |
| DALL-E 3 | OpenAI | 🏆 Best | Medium | ChatGPT Plus / Free tier | High-detail illustration |
| Ideogram 2.0 | Ideogram | Excellent | Fast | 20 prompts/day | Text in images |
| Recraft V4 | Recraft | Excellent | Fast | 30 credits/day | Vector/SVG output |
| Stable Diffusion XL | Stability AI | Good | Fast | Local/DreamStudio | Flexibility, local |
| Midjourney v6 | Midjourney | 🏆 Excellent | Slow | None (paid only) | Artistic, Discord |
| Leonardo.ai | Leonardo | Very Good | Fast | 150 tokens/day | Commercial use, gaming |
| Adobe Firefly | Adobe | Good | Fast | 25 credits/month | Safe, commercial |
| Imagen 3 | Excellent | Medium | Vertex AI trial | Photorealistic | |
| DiffusionBee | Local | Good | Fast | Local unlimited | Easy setup, open-source |
| ComfyUI | Local | Good | Fast | Local unlimited | Advanced, node-based |
| Provider | Model | Free Tier | Notes |
|---|---|---|---|
| Replicate | FLUX.1-schnell | Free tier | Fast inference |
| Pollinations | Various | Unlimited | No signup |
| HuggingFace | SDXL/FLUX | $0.10 credits | Inference API |
| Leonardo | Phoenix | 150 tokens/day | Commercial OK |
Text-to-video and image-to-video generation. Hot area in 2026.
| Model | Provider | Quality | Duration | Free Tier | Best For |
|---|---|---|---|---|---|
| Veo 3 | 🏆 Excellent | 1080p, 60s clips | Limited preview | Cinematic, realistic | |
| Sora 3 | OpenAI | 🏆 Excellent | 120s | ChatGPT Plus | High quality, physics |
| Runway Gen-3 | Runway | Excellent | 10 seconds | 3 free credits | Creative, filmmaking |
| Pika 3.0 | Pika | Very Good | 3-5 seconds | Free tier | Lip-sync improved |
| Luma Dream Machine | Luma | Very Good | 5 seconds | 30 generations/mo | Fast, realistic |
| Kling | Kuaishou | Excellent | 2-10 minutes | Limited | Long-form, Chinese |
| Hailuo AI | MiniMax | Good | 6 seconds | Free tier | Character consistency |
| Stable Video Diffusion | Stability | Good | 4 seconds | Local | Open, flexible |
| Provider | Cost per video | Generation time |
|---|---|---|
| Runway | ~$0.20-0.50 | 1-5 min |
| Pika | ~$0.10-0.30 | 30s-2 min |
| Luma | ~$0.30-0.60 | 2-5 min |
| Kling | ~$0.05-0.20 | 1-10 min |
Tools for AI agents to control browsers - web scraping, form filling, testing.
| Tool | Type | Pricing | Best For |
|---|---|---|---|
| Browserbase | Managed browsers | $5 free tier | Production agents |
| Steel.dev | Browser API | Free tier | AI-native browser control |
| Stagehand | AI browser framework | Open source | Next-gen Playwright |
| Playwright | Browser automation | Free | Reliable, well-documented |
| Puppeteer | Chrome automation | Free | Chrome-specific |
| Selenium | Cross-browser | Free | Legacy support |
| Scrapy | Web scraping | Free | Data extraction |
| Tool | AI Integration | Use Case |
|---|---|---|
| Stagehand | Natural language commands | AI agents controlling browsers |
| Browserbase | Session recording for AI | Training agent trajectories |
| Steel.dev | Built for LLM agents | Agent-native browser API |
Stack Recommendation:
Production-ready vector storage without high costs.
| Provider | Type | Free Tier | Paid | Best For |
|---|---|---|---|---|
| Supabase Vector | Postgres + pgvector | 500MB | $25/mo starter | Full-stack apps |
| Neon | Serverless Postgres | 500MB | $19/mo | Serverless, branching |
| Railway | Managed Postgres | $5 credits | Usage-based | Easy deployment |
| PlanetScale | MySQL + vectors | 5GB | $39/mo | Scale, branching |
| Chroma Cloud | Vector-native | Free tier | Usage-based | Pure vector workloads |
| Qdrant Cloud | Vector DB | 1GB | $25/mo | High performance |
| Pinecone | Managed vector | 2GB | $70/mo | Production, no ops |
| Weaviate Cloud | Vector DB | 5M vectors | $25/mo | Hybrid search |
| LanceDB | Embedded/Cloud | Free | Cloud beta | Multimodal |
| Database | Best For | Notes |
|---|---|---|
| ChromaDB | Prototyping | Simple, Python-native |
| Qdrant | Production | Rust-based, fast |
| Milvus | Enterprise | Scalable, complex |
| pgvector | Postgres apps | Just add extension |
| LanceDB | Embedded | No server needed |
Recommendation by Stage:
Proven patterns for building AI applications.
User → Chat UI → LLM API → Response
↓
Context Memory (Redis/Postgres)
Stack:
Documents → Chunking → Embeddings → Vector DB
↓
User Query → Embedding → Similarity Search → LLM → Response
Stack:
User Request → Agent Controller → Tool 1 (Search)
→ Tool 2 (Code exec)
→ Tool 3 (API call)
↓
Synthesize → Response
Stack:
User Request → Router (classify intent)
↓
┌───────────────┼───────────────┐
↓ ↓ ↓
Cheap Model Medium Model Expensive Model
(GPT-6 Luna) (Claude Sonnet 5.5) (Claude Opus 5.5 / GPT-6 Astra)
↓ ↓ ↓
Simple Q&A Complex task Hard reasoning
Implementation:
Audio Input → STT → LLM → TTS → Audio Output
↓ ↓ ↓ ↓
Deepgram Groq Claude ElevenLabs
Stack:
Image Input → Vision LLM → Structured Output
↓
Database / Action
Stack:
Text Prompt → LLM Enhancement → Image Gen → Upscaling
↓
Video Gen (optional)
Stack:
API pricing for budget planning. Sorted by input cost.
| Model | Provider | Input | Output | Cache Hit | Best For |
|---|---|---|---|---|---|
| MiniMax M2.5 | MiniMax | $0.08 | $0.12 | - | Bulk generation |
| DeepSeek V4 | DeepSeek | $0.28 | $0.55 | $0.03 🎯 | Coding, cached |
| gemini 3.8 Flash | $0.25 | $0.75 | $0.05 🎯 | High throughput, 1M+ context | |
| GPT-6 Luna | OpenAI | $0.30 | $1.20 | - | Efficient lightweight reasoning |
| GLM 4.9 Air | ZAI | $0.35 | $0.75 | - | Chinese/English |
| Qwen3-Coder | Alibaba | ~$0.60 | ~$1.20 | - | Strong agent tasks |
| Claude Haiku 5.5 | Anthropic | $1.00 | $5.00 | $0.10 | High-velocity lightweight tasks |
| MiMo V2.5 Pro | Xiaomi | $1.00 | $3.00 | $0.20 | Long-horizon agents, flat up to 1M ctx |
| Claude Sonnet 5.5 | Anthropic | $2.00 | $10.00 | $0.20 | Flagship coding, 30% fewer tokens/task |
| GPT-6.1 Sol | OpenAI | $2.00 | $10.00 | $0.10 | Workhorse agent, near-Astra coding |
| Claude Opus 5.5 | Anthropic | $5.00 | $25.00 | $0.50 | Enterprise reasoning, secure sandboxing |
| GPT-6 Astra | OpenAI | $10.00 | $50.00 | $1.00 | Autonomous computer operator & frontier |
| Gemini 4 Argon | Frontier | Frontier | - | 1M output token long-horizon (Preview) |
💡 Pro tip: DeepSeek's 90% cache discount makes it cheapest for repetitive tasks with long prompts.
⚠️ October 2026 Generation Note: Claude Sonnet 5.5 lowered rates to $2.00/$10.00 ($0.20 cache read) with 30% lower token usage per task. GPT-6.1 Sol provides near-Astra capabilities at $2.00/$10.00 ($0.10 cache read). Claude Haiku 5.5 is rolling out to replace Haiku 4.5. Claude Opus 5.5 ($5/$25) and GPT-6 Astra ($10/$50) represent the top enterprise and autonomous tiers.
Don't just use SWE-bench - match models to your specific task.
| Model | Why | Free Tier |
|---|---|---|
| Claude Sonnet 5.5 | 70.6% Terminal-Bench 4.0, 55.5% CursorBench, 30% fewer tokens/task | Claude Code / Various |
| GPT-6.1 Sol | Matches Astra on DeepSWE v1.1 at $2/$10, leading agentic performance | ChatGPT Plus/Pro / API |
| Qwen3.6-Plus | 71.2% SWE-bench, Chinese + English, agent-optimized | 2,000 req/day |
| DeepSeek V4 | Near-frontier performance at 1/10th cost | DeepSeek API |
| Model | Why | Free Tier |
|---|---|---|
| Claude Opus 5.5 | Flagship enterprise reasoning, secure sandboxing, prompt-injection defense | Claude Code Pro / Bedrock |
| GPT-6 Astra | Flagship computer operator, long-horizon autonomous planning | ChatGPT Pro / API |
| Gemini 4 Argon | Frontier long-horizon reasoning with 1M output tokens | Fairwind Trusted Testers (Preview) |
| DeepSeek R1 | Specialized reasoning model, math/logic | DeepSeek API |
| MiMo V2.5 Pro | Long-horizon agents (1K+ tool calls), flat rate up to 1M context | Xiaomi Token Plan ($6-$100/mo) |
| Model | Why | Cost per 1M |
|---|---|---|
| gemini 3.8 Flash / Flash-Lite | Primary high-throughput, low-latency models on Google AI Studio ($0.25/$0.75) | 1,500 RPD free |
| GPT-6 Luna | High-efficiency lightweight OpenAI model ($0.30/$1.20) | API |
| MiniMax M2.5 | 80.2% SWE-bench, dirt cheap | $0.08/$0.12 |
| GLM 4.5 Air | Good quality, extremely cheap | ~$0.40/$0.80 |
| Model | Why | Free Tier |
|---|---|---|
| Claude Sonnet 5.5 | Best tool use, 70.6% Terminal-Bench 4.0, adaptive thinking | Various |
| GPT-6.1 Sol | Leads OSWorld 2.0 & Terminal-Bench Science, 24+ hour deep sessions | ChatGPT Plus/Pro / API |
| Qwen3.6-Plus | Built for agentic workflows | 2,000 req/day |
| MiniMax M2.5 (OpenCode) | 80.2% SWE-bench, agent-optimized | Zen Free tier |
| Model | Why | Free Tier |
|---|---|---|
| gemini 3.8 Flash Vision | Leads CharXiv chart reasoning at 84.2%, 1M+ multimodal context | Google AI Studio (1,500 RPD) |
| Claude 5.5 Vision | Exceptional technical diagram, UI, and document analysis | Claude Free / API |
| GPT-4o | Fast multimodal generation and OCR | ChatGPT Free |
| Qwen2.5 VL | Strong open vision model | Various |
| Model | Provider | Free Tier |
|---|---|---|
| Whisper Large v3 | Groq / Local | 2,000 req/day or unlimited local |
| ElevenLabs | ElevenLabs | Basic free tier |
| Piper | Local | Free, offline TTS |
Critical for scaling applications. Plan your architecture.
| Provider | RPM | TPM | Daily | Best For |
|---|---|---|---|---|
| Groq | 30 | Medium | 14,400 | High-throughput apps |
| Cerebras | 30 | 60,000 | 1.5M tokens | Batch processing |
| Gemini Studio | 15 | High | 1,500 | Prototyping |
| OpenRouter | 20 | Medium | 50-1,000 | Flexible routing |
| Cloudflare | 300 | 10K neurons | 10K neurons | Edge deployment |
| Groq (varies) | 30-50 | 6K-30K | 1K-14.4K | Model-dependent |
| App Type | Recommended Stack |
|---|---|
| Document QA / Study App | Cerebras (Qwen3.6-Plus) + Groq |
| AI Reel Generator | gemini 3.8 Flash (video) + Groq (audio) |
| Trading AI | Groq + local Qwen3.6-Plus |
| Chatbot | OpenRouter + gemini 3.8 Flash (cheap) |
| Code Review Bot | DeepSeek V4 (cheap) + Claude Sonnet 5.5 (quality) |
Quick reference for legal safety.
| Provider | Commercial Use | Notes |
|---|---|---|
| OpenRouter | ✅ Yes | All models |
| Groq | ✅ Yes | All models |
| Gemini API | ✅ Yes | Per Google ToS |
| Cohere | ❌ Non-commercial (evaluation only) | Trial API keys strictly prohibit production/revenue use |
| Claude (API) | ✅ Yes | Per Anthropic ToS |
| OpenCode Zen | ✅ Yes | Per Zen ToS |
| DeepSeek | ✅ Yes | No military use restriction |
| Qwen/Alibaba | ✅ Yes | Apache 2.0 models |
| Ollama Local | ✅ Yes | Fully offline |
⚠️ Always verify current ToS - licenses can change.
Build document Q&A and semantic search systems.
| Tool | Best For | Free Tier |
|---|---|---|
| LlamaIndex | Production RAG | Open source |
| LangChain | Flexibility | Open source |
| Haystack | Enterprise | Open source |
| Vercel AI SDK | Edge RAG | Free tier |
| Database | Type | Free Tier | Best For |
|---|---|---|---|
| ChromaDB | Local | Unlimited | Prototyping, small apps |
| LanceDB | Local/Serverless | Generous | Multimodal, embeddings |
| Weaviate | Cloud/Local | 5M vectors | Production scale |
| Supabase Vector | Postgres | 500MB | Full-stack apps |
| Pinecone | Managed | 2GB (1 pod) | Production, no ops |
| Qdrant | Local/Cloud | 1GB cloud | High performance |
| Tool | Purpose |
|---|---|
| RAGAS | Evaluate retrieval quality |
| LlamaIndex Evals | Built-in RAG metrics |
| Arize Phoenix | Observability |
Essential for RAG - don't overlook these.
| Embedding | Provider | Dimensions | Free Tier | Best For |
|---|---|---|---|---|
| text-embedding-3-small | OpenAI | 1536 | 200K tokens/day | General purpose |
| Jina Embeddings v3 | Jina AI | 1024 | 1M tokens/day | Multilingual |
| BGE-Large-EN-v1.5 | HuggingFace/Local | 1024 | Free | High quality retrieval |
| E5-Mistral-7B | Various | 4096 | Varies | Best accuracy |
| Nomic Embed v1.5 | Nomic | 768 | Free tier | Long context (8K) |
| GTE-Large | Alibaba | 1024 | DashScope free | Chinese + English |
| Model | Size | Speed | Quality |
|---|---|---|---|
| BGE-Small | 33M | Fast | Good |
| MiniLM-L6 | 22M | Very Fast | Basic |
| Nomic Embed | 137M | Fast | Excellent |
Scale beyond free tiers.
| Provider | Type | Pricing | Best For |
|---|---|---|---|
| Modal | Serverless GPU | $5-30/month credits | Batch inference |
| RunPod | GPU Cloud | $0.20-0.50/hr | Training, fine-tuning |
| Vast.ai | Spot GPUs | Cheap spot prices | Budget inference |
| Lambda Labs | GPU Cloud | ~$0.60/hr A100 | Stable workloads |
| Beam.cloud | Serverless | Per request | Spiky traffic |
| Baseten | Model serving | $30 credits | Production models |
| Replicate | Model hosting | 6 req/min free | Quick deployment |
| Platform | Cold Start | Best For |
|---|---|---|
| Modal | Fast | Python functions |
| Beam | Fast | ML models |
| Replicate | Medium | Pre-built models |
| HuggingFace Inference | Medium | HF ecosystem |
Benchmark your models before production.
| Tool | Purpose | Free Tier |
|---|---|---|
| Promptfoo | Prompt testing, red-teaming | Open source |
| LangSmith | Tracing, evals | 5K traces/month |
| RAGAS | RAG evaluation | Open source |
| DeepEval | LLM unit testing | Open source |
| Arize Phoenix | Observability | Generous free tier |
| Weights & Biases | Experiment tracking | Academic free |
Force LLMs to return valid JSON/schemas.
| Tool | Approach | Best For |
|---|---|---|
| Instructor | Pydantic validation | Python apps |
| Guidance | Constrained generation | Complex schemas |
| Outlines | Regex/constrained | Fast inference |
| JSONformer | Structure-aware decoding | Local models |
| Zod + Vercel AI SDK | TypeScript validation | Web apps |
Quick reference for badges used in this guide.
| Badge | Meaning |
|---|---|
| 🟢 | No credit card required |
| 💳 | Credit card required |
| ⚡ | Fast inference (low latency) |
| 🧠 | Strong reasoning capabilities |
| 💻 | Coding optimized |
| 📦 | Open source / self-hostable |
| 🔒 | Privacy focused / local |
| 🤖 | Agentic capabilities |
| 🎯 | Best value / cheap |
| 🌐 | Multilingual support |
[verify] | Needs verification from official source |
If you spot an error, missing source link, or have updated quota/model information, please open an issue or pull request with a source.
No affiliation with any vendor. All trademarks belong to their owners. Information is for research; accuracy not guaranteed; limits/pricing change frequently.
This list was compiled and verified using:
MIT © ShaikhWarsi
Last updated: October 5, 2026 • PRs/issues welcome
562 followers · starred Aug 2026
51 followers · starred May 2026
68 followers · starred Jun 2026
31 followers · starred Jul 2026
Curated list of free and low cost AI tools, LLM APIs, IDEs, agents, and infrastructure for building real AI apps
See the code
Curated list of free LLM APIs, coding copilots, AI IDEs, agents, and infrastructure tools for building real AI applications.
Goal: Help developers build AI apps without paying $200/month.
[!NOTE]
Please don't abuse these services, else we might lose them for everyone. The number becomes 550+ when you add all the models and sub services of all the tools provided. When raising issues or pull requests please dont add your own paid, expensive personal projects.
[!WARNING]
October 2026 Model Generation Leap: Major providers have transitioned to next-generation architectures: OpenAI introduced the GPT-6 family (GPT-6 Astra, GPT-6.1 Sol, GPT-6 Luna); Anthropic deployed the Claude 5.5 generation (Claude Opus 5.5, Claude Sonnet 5.5, Claude Haiku 5.5); Google rolled out gemini 3.8 Flash / Flash-Lite as the default workhorse and previewed Gemini 4 Argon. The new baseline for high-throughput coding and daily development is Claude Sonnet 5.5, GPT-6.1 Sol, and gemini 3.8 Flash, while complex multi-hour reasoning and autonomous sandboxing target GPT-6 Astra and Claude Opus 5.5.Pricing & Billing Updates: Windsurf switched to a quota-based model (Pro $20, Teams $40, new Max $200) on Mar 18. Trae moved to a 5-tier token system (Lite $3, Pro $10, Pro+ $30, Ultra $100) on Feb 24. Qoder's launch promo ended — standard standalone pricing settled at Pro $30/mo (2,000 credits, or CNY 59/mo on Qoder CN All-in-One), Teams $40/seat (3,000 credits). Cursor split Teams into Teams Standard ($40/seat) & Teams Premium ($120/seat), credited $70 third-party usage on Pro+ ($60/mo), and shifted Bugbot to ~$1.00–$1.50/run. GitHub Copilot summer credit promotion ended Sep 1, 2026 (reverting to standard $19 / 1,900 credits for Business and $39 / 3,900 credits for Enterprise). Xiaomi MiMo V2.5 API permanent pricing schedule flattened to $1.00/1M input, $3.00/1M output, and $0.20/1M cached across all context lengths up to 1M tokens.
Most AI tool lists are:
This repo focuses only on:
Unlike: awesome-ai (general list), ai-collection (marketing focus), toolify (affiliate-heavy)
This is for: Builders who want to ship AI features this week.
If this repo helped you build something or saved you money:
⭐ Star this repo — it helps more builders discover free AI resources.
[🔄 Share with your team] — spread the knowledge.
📝 Contribute — found a new free tier? Updated pricing? PRs welcome!
2026-10-05 (5/10/26)
google-deepmind/antigravity), MemoryPalace (milla-jovovich/mempalace), AWS Kiro (kiro.dev), and QuantFlow Pilot (qf-studio/pilot).website/src/data/tools.ts and website/src/data/stacks.ts.# anchor links for PR review and CLI tools (Bito, Sourcery, ForgeCode, Goose, OhMyPi) with direct links to official repositories and websites.README.md and website/src/data/tools.ts.--fiable → --reliable) in free-coding-models usage documentation.2026-06-25
2026-06-16
2026-05-18
2026-04-12
2026-04-11
| Provider | Models | Free Tier | Credit Card |
|---|---|---|---|
| NVIDIA NIM | 46 | 40 req/min | No |
| OpenRouter | 25 | 50/day (1K/day with $10) | No |
| Groq | 20+ | 1K-14.4K req/day | No |
| Google AI Studio | 9 | 5-500 req/day | No |
| Cloudflare Workers AI | 47+ | 10K neurons/day | No |
| Cerebras | 4 | 1.5M tokens/day | No |
| Mistral La Plateforme | 10+ | 1B tokens/month | No |
| IDE | Pro-grade Models | Free Tier Limit | Credit Card |
|---|---|---|---|
| Cursor | Claude Sonnet 5.5 / GPT-6.1 Sol / Custom | Limited free tier (Hobby) | No |
| Trae | Doubao / Claude 3.5/3.7 / GPT-4o (Region-dependent) | 5,000 auto-completions/month | No |
| Windsurf | Claude Sonnet 5.5 / Opus 5.5, GPT-6.1 Sol | Light quota (daily/weekly) | No |
| Qoder | Qwen3.6-Plus, Qwen3-Coder-480B, GPT-6.1 Sol | Unlimited completions + limited chat | No |
| Tool | Starting Price | Free Tier | Features | Credit Card |
|---|---|---|---|---|
| PrixAI | Free / $10 paid plan | Free trial available | Unlimited reviews Auto-fix PRs, issue planning | No |
| Bito | Free / $25 paid plans | Free trial available | AI PR reviews/Unlimited reviews | No |
| Sourcery | ~$12/month | Free trial available | Code quality reviews | No |
| Tool | Pro-grade Models | Free Tier Limit | Credit Card |
|---|---|---|---|
| Gemini CLI | gemini 3.8 Flash / Flash-Lite | 1,500 req/day | No |
| Rovo Dev CLI | Claude Sonnet 5.5, GPT-6.1 Sol | Enterprise Cloud add-on (5M tok/day) | Paid Atlassian Cloud org required |
| Warp | GPT-6.1 Sol, Claude Sonnet 5.5 | 150 credits/mo (first 2 mo), 75/mo after | No |
| GitHub Copilot | Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6 Astra | 50 chat + 2K completions/month | No |
| Jules | gemini 3.8 Flash / Gemini 3 Pro | 15 tasks/day | No |
| Amazon Q Developer | Claude 3.5 Sonnet (AWS Bedrock) | 50 interactions/month (AWS Builder ID) | No |
| OpenCode | 75+ providers (BYOK) + Go bundle | Free (Zen) / Go $10/mo | No |
| Xiaomi MiMo | MiMo-V2.5-Pro, MiMo-V2.5, MiMo-V2-Omni | Free API credits | No |
| ForgeCode | 300+ models via OpenRouter | 10K tokens/day | No |
| RooCode | Bring your own keys | Unlimited (BYOK) | No |
| Goose | Bring your own keys | Unlimited (BYOK) | No |
| OhMyPi | Bring your own keys | Unlimited (BYOK) | No |
Models achieving ≥60% on SWE-bench Verified / Pro or leading agentic benchmarks (Terminal-Bench 4.0, DeepSWE v1.1):
| Model | Benchmark / Score | Provider | Status |
|---|---|---|---|
| Claude Opus 5.5 | Flagship Enterprise (~86% SWE) | Anthropic | Flagship Reasoning & Security |
| GPT-6 Astra | Flagship Computer Operator (~85% SWE) | OpenAI | Autonomous Agentic Flagship |
| GPT-6.1 Sol | Matches Astra on DeepSWE v1.1 ($2/$10) | OpenAI | Workhorse Agent |
| Claude Sonnet 5.5 | 70.6% Terminal-Bench 4.0 / 55.5% CursorBench 4.0 | Anthropic | High-Speed Agentic Coder |
| Gemini 4 Argon | Frontier Long-Horizon (1M output tokens) | Frontier Reasoning (Preview) | |
| gemini 3.8 Flash | 84.2% CharXiv / High-Throughput | Default Fast Workhorse | |
| Qwen3.6-Plus | 71.2% SWE-bench | Alibaba | Premium Open-weight |
Note:
[verify]indicates scores need verification from official sources. Always check current benchmarks before making decisions.
Ready-made combinations for different use cases. Copy-paste these configurations.
| Layer | Tool | Why |
|---|---|---|
| IDE | Cursor Hobby / Qoder | Limited completions + Claude Sonnet 5.5 / GPT-6.1 Sol chat |
| CLI | Gemini CLI (3.5 Flash) / OpenCode Zen | 1,500 req/day Flash, free open-source models |
| API | OpenRouter + Groq | 50 req/day + 14.4K req/day combo |
| Local | Ollama + Qwen3.6-Plus | Unlimited offline |
| Automation | n8n Self-hosted | Unlimited workflows |
| Vector DB | ChromaDB / LanceDB | Free local storage |
Total Cost: $0/month
| Layer | Tool | Speed |
|---|---|---|
| Inference | Groq / Cerebras | 2,000 tokens/sec (Cerebras) |
| Coding | Qwen3.6-Plus via Groq | 1,000 req/day (71.2% SWE) |
| Agent | OpenCode Zen | MiniMax M2.5 (80.2%), DeepSeek V4 |
| Cache | DeepSeek V4 | $0.30/$0.50 per 1M, 90% cache discount |
| Edge | Cloudflare Workers AI | Global CDN |
Best for: Real-time apps, trading bots, live coding assistants
| Layer | Tool | Cost |
|---|---|---|
| IDE | Trae Lite | $3/mo ($5 basic usage + bonus) |
| IDE | Trae Pro | $10/mo ($20 basic usage + bonus, SOLO mode) |
| API | OpenRouter $10 | 1K req/day + BYOK 1M/month free |
| CLI | OpenCode | Free (BYOK) or Go $10/mo |
| CLI | Xiaomi MiMo Lite | $6/mo (60M credits, ~120 tasks) |
| CLI | Gemini CLI | gemini 3.8 Flash / Flash-Lite |
| Local | Ollama | Free |
| Embeddings | Jina AI | Free tier |
Total Cost: ~$10/month for pro-grade everything
| Layer | Tool | Privacy |
|---|---|---|
| Models | Ollama + Llama 3.3 / Qwen3-Coder | Runs locally |
| IDE | Continue.dev + VS Code | BYO local models |
| CLI | Aider + local Ollama | Git-integrated, offline |
| Chat UI | Open WebUI | Self-hosted ChatGPT alternative |
| Vector DB | ChromaDB / LanceDB | Local embeddings storage |
| Speech | Whisper (local) | Offline transcription |
Best for: Healthcare, legal, finance - any sensitive data
| Component | Tool | Role |
|---|---|---|
| Orchestrator | n8n / Gumloop | Workflow automation |
| Reasoning | DeepSeek R1 / DeepSeek V4 | Complex decision making |
| Execution | Qwen3.6-Plus | Code generation |
| Memory | ChromaDB / Supabase Vector | Long-term context |
| Embeddings | Jina Embeddings v3 (1M tokens/day free) | Semantic search |
| Monitoring | LangSmith | Trace agent steps |
Best for: Autonomous research assistants, code review bots, data processing pipelines
| Component | Tool | Purpose |
|---|---|---|
| Framework | LlamaIndex / LangChain | RAG orchestration |
| Vector DB | ChromaDB / Weaviate / Supabase | Document storage |
| Embeddings | E5-Mistral-7B (best accuracy) | Text vectorization |
| Chunking | LlamaIndex | Smart document splitting |
| Reranking | Cohere Rerank | Improve retrieval accuracy |
| LLM | Claude Sonnet 5.5 / GPT-6.1 Sol | Answer generation |
| Eval | RAGAS | Measure RAG performance |
Best for: Document QA, legal document analysis, knowledge bases
Limits: 20 RPM, 29 free models (262K context max, March 2026), models share quota
Unified API gateway for 100+ LLMs. OpenAI and Anthropic SDK-compatible. China-friendly with Hong Kong direct access (100-300ms latency). No monthly fees, pay per token.
Limits: Not published | 1 free model
Data is used for training when used outside UK/CH/EEA/EU.
Rate limits: Tier 1 (default): 250 RPD | Tier 2: Requires $250 spend + 30 days
| Model | Free Tier Limits |
|---|---|
| Gemini 3.1 Pro [verify: now paid] | 250 RPD (Tier 1) |
| gemini 3.8 Flash | 1,500 RPD (Primary high-throughput, low-latency) |
| gemini 3.8 Flash-Lite | High-throughput lightweight tier |
| Gemini 3 Flash | 1,500 RPD |
| All others | Check console |
Note: Data training outside UK/CH/EEA/EU still applies.
Phone number verification required. Models tend to be context window limited.
Limits: 1K credits signup, up to 5K total, 40 RPM (phone verify required)
Free tier requires opting into data training; phone verification required
Limits (per-model): 1 req/s, 500K tokens/min, 1B tokens/month
Self-hosted, open-source AI gateway for routing requests across 20+ providers through an OpenAI-compatible API.
AI gateway with curated models. Free models may use data for improvement.
| Model | Limits |
|---|---|
| GPT-OSS 120B | 30 req/min, 60K tokens/min, 900 req/hour, 1.5M tokens/day |
| Llama 3.1 8B | Same limits as above |
| Qwen3-235B | Available via API |
| Model | Limits |
|---|---|
| Llama 3.1 8B | 14,400 req/day, 6K tokens/min |
| Llama 3.3 70B | 1,000 req/day, 12K tokens/min |
| Llama 4 Maverick/Scout | 1,000 req/day |
| Whisper Large v3/v3 Turbo | 7,200 audio-sec/min, 2,000 req/day |
| Qwen3-32B | 1,000 req/day, 6K tokens/min |
| Kimi K2 Instruct | 1,000 req/day, 10K tokens/min |
| GPT-OSS 20B/120B | 1,000 req/day, 8K tokens/min |
| And 15+ more |
Limits: 10,000 neurons/day
| Provider | Credits | Duration | Notes |
|---|---|---|---|
| Fireworks | $1 | Permanent | Various open models |
| Baseten | $30 | Permanent | Pay by compute time |
| Nebius | $1 | Permanent | Various open models |
| Novita | $0.50 | 1 year | Various open models |
| AI21 | $10 | 3 months | Jamba family |
| Upstage | $10 | 3 months | Solar Pro/Mini |
| NLP Cloud | $15 | Permanent | Phone verification required |
| Alibaba Cloud | 1M tokens/model | 90 days | Qwen models |
| Modal | $5-30/month | Monthly | Pay by compute time |
| Inference.net | $1 (+$25 on survey) | Permanent | Various open models |
| Hyperbolic | $1 | Permanent | DeepSeek, Llama, Qwen, GPT-OSS |
| SambaNova Cloud | $5 | 3 months | Llama, Qwen, DeepSeek |
| Scaleway | 1M tokens | Permanent | DeepSeek, Llama, Mistral, Gemma |
| Vercel AI Gateway | $5 credit | Monthly | Requires active Vercel account |
| Provider | Models | Free Tier | Environment Variable |
|---|---|---|---|
| ZAI | 7 | Free tier (generous quota) | ZAI_API_KEY |
| SiliconFlow | 6 | 1K RPM, 50K TPM | SILICONFLOW_API_KEY |
| OVHcloud AI Endpoints | 8 | 2 req/min (no key), 400 RPM with key | OVH_AI_ENDPOINTS_ACCESS_TOKEN |
| Chutes AI | 4 | Free community GPU-powered | CHUTES_API_KEY |
| DeepInfra | 4 | 200 concurrent requests | DEEPINFRA_API_KEY |
| Replicate | 2 | 6 req/min (no payment), up to 3K RPM with payment | REPLICATE_API_TOKEN |
Full-featured integrated development environments with built-in AI assistance.
Model: Adaptive routing with Claude Sonnet 5.5, Claude Opus 5.5, and GPT-6.1 Sol (accessible via AI Gateway / custom config)
Models: Doubao (natively in China), Claude 3.5/3.7 Sonnet & GPT-4o (international routing)
Models: OpenAI (GPT-6.1 Sol), Anthropic (Claude Sonnet 5.5, Claude Opus 5.5), Google, xAI
Pricing | Pricing Announcement (Mar 18, 2026)
Models: Multi-agent (frontend/backend/testing agents)
Best for: Full-stack development with natural language direction
Models: Qwen3.6-Plus (71.2% SWE), Qwen-Coder-Qoder, GPT-6.1 Sol
Pricing (standard, post-promo):
Docs | Pricing | Adjustment Notice
Models: Bring your own API keys (any provider)
Model: Base model (Llama 3.3 70B), pro-grade models require subscription
Models: Local models + cloud models with limited quota
Models: Claude Sonnet 5.5, GPT-6.1 Sol, Llama 3.3 70B, proprietary models
Models: Unspecified models
Models: Unspecified models
Models: Proprietary models (not frontier)
General-purpose chat interfaces with free tiers.
| Platform | Free Model | Key Capabilities | Limitations |
|---|---|---|---|
| ChatGPT | GPT-6.1 Sol | Sora 3, DALL-E 3, GPT Store | ~20 msgs/5hr |
| Gemini | gemini 3.8 Flash | 2M Context, 20 Deep Research/mo | Research quota |
| Claude | Claude Sonnet 5.5 / Haiku 5.5 | Technical reasoning | ~30 msgs/5h |
| Grok | Grok 4.2 | Aurora 2 images, voice | 15 msgs/12hr |
| Mistral Le Chat | Mistral Medium 3 | Structured output | Fewer integrations |
Command-line tools for AI-assisted coding in your terminal.
Models: gemini 3.8 Flash, gemini 3.8 Flash-Lite, Gemini 3 Flash
npm install -g @google/gemini-cli[!IMPORTANT]
Enterprise SaaS Add-on: Rovo Dev CLI is tied directly to paid Atlassian Cloud (Jira/Confluence) organizations. There is no open, standalone free tier for independent developers without an active paid Atlassian Cloud organization.
Models: Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6 Astra (Ultra)
Models: GPT-6.1 Sol, Claude Sonnet 5.5, gemini 3.8 Flash
167k+ GitHub stars • 850+ contributors • 6.5M monthly users • Apache 2.0
Models: 75+ providers via BYOK — Anthropic, OpenAI, Google, Groq, AWS Bedrock, Azure, OpenRouter, local Ollama
OpenCode Go (recommended for getting started): Subscription bundle of curated open-weight models
OpenCode Zen: Pay-per-request credits (PAYG from $20)
Install: curl -fsSL https://opencode.ai/install | bash • brew install opencode • npm install -g opencode-ai
Models: Claude Sonnet 5.5, GPT-6.1 Sol, Gemini Flash, Grok Code Fast 1 (Free tier); Claude Opus 5.5 & GPT-6 Astra available in Pro/Pro+/Max/Business/Enterprise only
Plans Details | Usage-Based Billing Announcement (Apr 27, 2026)
Model: gemini 3.8 Flash / Gemini 3 Pro (upgraded from 2.5 Pro)
Amazon's generative AI-powered assistant for software development (evolved from Amazon CodeWhisperer).
Models: Claude 3.5 Sonnet & AWS Bedrock foundation models
Xiaomi's subscription plan for AI coding scenarios — bundled access to MiMo flagship models Compatible with OpenCode, OpenClaw, Claude Code, and other mainstream toolchains
Models: MiMo-V2.5-Pro, MiMo-V2.5, MiMo-V2.5-TTS, MiMo-V2-Omni
Monthly Pricing:
| Tier | Price (USD) | Price (CNY) | Monthly Credits | ~Tasks/mo |
|---|---|---|---|---|
| Lite | $6/mo | ¥39/mo | 60M | ~120 medium-complexity |
| Standard | $16/mo | ¥99/mo | 200M | ~400 |
| Pro | $50/mo | ¥329/mo | 700M | ~1,400 |
| Max | $100/mo | ¥659/mo | 3B Credits | ~6,000 tasks (corrected from 82B typo; 2.5B–3.5B range) |
API Pricing (permanent schedule announced May 27, 2026):
| Model | Input (per 1M) | Output (per 1M) | Cache Hit (per 1M) |
|---|---|---|---|
| MiMo V2.5 Pro | $1.00 | $3.00 | $0.20 |
| MiMo V2.5 Standard | $0.20 | $0.60 | $0.002 |
Models: Claude Sonnet 5.5 (default high-velocity coding), Claude Opus 5.5 (architectural refactoring), Claude Haiku 5.5
Models: GPT-6.1 Sol, GPT-6 Astra (with up to 8x faster token generation via Codex Ultrafast)
Models: OpenAI- and Anthropic-compatible endpoints, Gemini, and local models
npm install -D agent-qa && npx agent-qa initDocumentation | License | Last verified: 2026-08-16
These services provide API access to coding-optimized models for tools like Cursor, Continue.dev, Cline, etc.
| IDE | Entry Tier | Credits/Requests | Key Features |
|---|---|---|---|
| Cursor | Pro ($20/mo) | $20/mo credit pool | Unlimited completions, Auto mode |
| Trae | Lite ($3/mo) / Pro ($10/mo) | $5 / $20 basic usage + bonus | SOLO mode, 5-tier token system |
| Windsurf | Pro ($20/mo) | Standard quota (daily/weekly) | Multi-provider, Claude Sonnet 5.5 / Opus 5.5, Max $200 tier |
| Qoder | Pro ($30/mo) | 2,000 credits | Quest Mode, Experts Mode |
| Codeium | Pro ($10/mo) | Unlimited | Claude Sonnet 5.5, GPT-6 access |
| Tool | Entry Tier | Credits/Requests | Key Features |
|---|---|---|---|
| Claude Code | Pro ($20/mo) | ~225 messages/5h | Sonnet 5.5 + Opus 5.5 |
| Warp | Build ($20/mo) | 1,500 credits/month | BYOK available |
| GitHub Copilot | Pro ($10/mo) | $15 monthly AI Credits | Usage-based token billing since Jun 1, 2026 |
| OpenCode | Go ($10/mo) | $12/5h, $30/wk, $60/mo | Apache 2.0, 75+ providers, BYOK |
| Amazon Q Developer | Pro ($19/mo) | Enterprise limits & admin | Bedrock models, IDE & AWS CLI |
| Xiaomi MiMo | Lite ($6/mo) | 60M credits | OpenCode/Claude Code compatible |
Running open-weight frontier models locally provides unlimited coding assistance without API costs.
Notable Local Models (2026):
Find the fastest free coding model in seconds. Ping 271 models across 25 providers in real-time.
npm install -g free-coding-models
free-coding-models
F, persisted across sessions# Most reliable model right now
free-coding-models --reliable
# Configure Goose with S-tier model
free-coding-models --goose --tier S
# NVIDIA top models only
free-coding-models --origin nvidia --tier S
# JSON output for scripting
free-coding-models --tier S --json | jq -r '.[0].modelId'
| Flag | Launches |
|---|---|
--opencode | 📦 OpenCode CLI |
--openclaw | 🦞 OpenClaw |
--goose | 🪿 Goose |
--aider | 🛠 Aider |
--qwen | 🐉 Qwen Code |
--continue | ▶️ Continue CLI |
--cline | 🧠 Cline |
--gemini | ♊ Gemini CLI |
--rovo | 🦘 Rovo Dev CLI |
| And 8 more... |
| Tier | SWE-bench | Best For |
|---|---|---|
| S+ | ≥75% | Claude Opus 5.5, GPT-6 Astra, GPT-6.1 Sol, Claude Sonnet 5.5 |
| S | 65-75% | Qwen3.6-Plus (71.2%), gemini 3.8 Flash, DeepSeek-V4-Flash |
| A+/A | 40–60% | Solid alternatives |
| A-/B+ | 30–40% | Smaller tasks |
| B/C | < 30% | Code completion |
All 271 models allow commercial use of generated output. You own what the models generate.
| License | Models | Commercial |
|---|---|---|
| Apache 2.0 | Qwen3/Qwen2.5 Coder, GPT-OSS 120B/20B, Devstral Small 2, Gemma 4, MiMo V2 Flash | ✅ Unrestricted |
| MIT | GLM 4.5/4.6/4.7/5, MiniMax M2.1, Devstral 2 | ✅ Unrestricted |
| Llama Community License | Llama 3.3 70B, Llama 4 Scout/Maverick | ✅ Attribution required. >700M MAU → separate Meta license |
| DeepSeek License | DeepSeek V3/V3.1/V3.2, R1 | ✅ Use restrictions on model (no military, no harm) — output is yours |
| NVIDIA Nemotron License | Nemotron Super/Ultra/Nano | ✅ Updated Mar 2026, now near-Apache 2.0 permissive |
| MiniMax Model License | MiniMax M2, M2.5 | ✅ Royalty-free, non-exclusive. Prohibited uses policy applies to model |
| Proprietary (API) | Claude (Rovo), Gemini (CLI), Perplexity Sonar, Mistral Large, Codestral | ✅ You own outputs per provider ToS |
| OpenCode Zen | MiMo V2 Pro/Flash/Omni Free, MiniMax M2.5 Free, Nemotron 3 Super Free | ✅ Per OpenCode Zen ToS |
Key Points:
⚠️ Disclaimer: This is a summary, not legal advice. License terms can change. Always verify the current license on the model's official page before making legal decisions.
[verify] tag: Indicates information needs verification from official sources. Pricing, limits, and model availability change frequently.| Program | What You Get | Requirements |
|---|---|---|
| GitHub Student Pack | Free Copilot Pro for students | Verify with .edu email |
| GitHub Copilot Free | 50 chat + 2,000 completions/month | VS Code users |
| Copilot Pro for Teachers/Maintainers | Free Copilot Pro | Open source maintainers & educators |
Visual orchestration tools for building autonomous AI agents without coding.
| Platform | Free Tier | Best For | Key Features |
|---|---|---|---|
| Make (Integromat) | 1,000 ops/month | Visual builders | Drag-and-drop AI Agents, 3,000+ app integrations |
| n8n | Unlimited (self-hosted) | Technical teams | Self-hosted RAG systems, private data automation |
| Gumloop | 2,000 credits/month | No-code agents | Natural-language builder, "Gummie" troubleshooting agent |
| Relay.app | Generous free plan | Beginners | Simple agentic workflows |
| Activepieces | 1,000 tasks/month | Open-source | Flat pricing, self-hostable |
| Podium | Entry-level tiers | Sales/communication | 24/7 lead response AI agents |
AI-powered tools for conversational data analysis and narrative visualization.
| Tool | Function | Free Tier Detail | Key Feature |
|---|---|---|---|
| Julius | Chat-with-data | Upload spreadsheets, generate instant visualizations | |
| Anomaly AI | AI Dashboards | Generate interactive dashboards from natural language | |
| Flourish | Data Storytelling | No-code interactive maps, "scrollytelling" features | |
| Datawrapper | Publishing | Publish-ready charts in seconds, journalism-focused | |
| Looker Studio | Marketing Data | Seamless Google Analytics/Ads integration | |
| Power BI Desktop | Microsoft reports | Copilot recommendations, local report building | |
| AI for Database | Natural language DB queries | Freemium - free tier available | Connect any DB (PostgreSQL, MySQL, MongoDB) and query in plain English — no SQL needed, with self-refreshing dashboards and workflow automation |
Professional-grade content creation with generous free tiers.
| Tool | Output | Free Tier | Key Capability |
|---|---|---|---|
| Veo | Video | Basic Free | Cinematic clips with realistic motion and sound |
| Sora 3 (via ChatGPT) | Video | Limited free tier | Deep ChatGPT integration, high-quality video |
| DALL-E 3 (via ChatGPT) | Image | Limited free tier | High-detail image generation |
| Synthesia | Video Avatars | Free individual plan | "Video Agents" in 120+ languages |
| 1 More Shot | Music Videos | Free plan | Advanced lip-sync, frame-by-frame control |
| Leonardo.Ai | Images | 150 tokens/day (~8–15 images) | Commercial use allowed |
| Recraft AI | Vector/SVG | 30 credits/day | Infinitely scalable icons and logos |
| Ideogram | Images | 10-20 prompts/day | Perfect text rendering, "Magic Prompt" |
| Suno AI | Music | 50 credits/day (~10 tracks) | Complete songs with vocals and instruments |
| ElevenLabs | Voice | Basic Free | Realistic voice cloning |
| Canva AI | Design | Robust free tier | AI design assets, brochures, short videos |
| PhotoGenerAI | Image | Free credits, no sign-up | AI photo generation & editing in the browser |
| Tool | Function | Free Tier Detail | Key Feature |
|---|---|---|---|
| Grammarly | Writing | 100 AI prompts/month | Rewrites and tone detection |
| LanguageTool | Grammar | 10,000 characters/text | 25+ languages, open-source |
| Fathom | Meetings | Forever Free | Records/transcribes Zoom/Teams, auto-sync to CRM |
| NotebookLM | Research | Free | Audio Overview podcasts, grounded in your documents |
| Humata | PDF Analysis | 60 pages/month | Clickable source citations |
| QuillBot | Rewriting | 125 words/time | Fluency & Standard modes |
| DeepL | Translation | Basic Free | Incognito sensitive mode |
Medical AI:
| Tool | Pricing | Key Value |
|---|---|---|
| iatroX | Free | Adaptive Q-Bank, NICE/BNF clinical reference |
| DxGPT | Free | Diagnostic assistant (500K+ users, 6K doctors) |
| OpenEvidence | Free (US verified) | Evidence-grounded search, ambient note generation |
Legal AI:
| Tool | Pricing | Key Value |
|---|---|---|
| DocLegal.Ai | $10/month | Clause suggestion, risk detection |
| Doculex.ai | Varies | Case-data-driven drafting from medical records |
| Spellbook | 7-day trial | In-editor contract analysis |
| Harvey AI | Enterprise | Regulatory matters, high security |
| Tool | Function |
|---|---|
| Wellows | AI Visibility Score tracking across ChatGPT, Gemini, Perplexity |
| Google SGE Labs | See how AI Overviews interpret target keywords |
| NeuronWriter | AI content scoring |
| Surfer SEO | Content optimization |
| Jasper | AI copywriting with brand voice |
| Writesonic | Scalable copywriting |
| Tool | Function | Description |
|---|---|---|
| Open WebUI | Local Chat Interface | ChatGPT-like experience running entirely offline with Ollama |
| Whisper (OpenAI) | Speech-to-Text | Most accurate open-source transcription |
| Piper | Text-to-Speech | High-quality offline audio generation |
| ComfyUI | Image Generation | Node-based interface for Stable Diffusion |
| Zed | AI IDE | 50 AI prompts/month, native performance, high speed |
| Void IDE | Agent-first IDE | Multi-agent frontend/backend/testing |
Low-latency APIs for voice assistants, live coding copilots, trading tools, and realtime chat.
| Provider | Latency | Best For | Free Tier |
|---|---|---|---|
| Groq Streaming | ~50-150ms (0.4ms/token) | Live coding, chat | 14.4K req/day |
| OpenAI Realtime API | Low | Voice assistants, agents | No free tier (pay-per-use only, trial credits new accounts) |
| Gemini Live API | Low | Multimodal streaming | Dynamic caps (varies by prompt complexity) |
| Cerebras | 2,400 tok/sec (Qwen3.6) | Batch + streaming | 1.5M tokens/day |
| Cloudflare Workers AI | Edge | Global low-latency | 10K neurons/day |
| Provider | Type | Latency | Free Tier |
|---|---|---|---|
| Deepgram | STT streaming | ~300ms | $200 credits |
| AssemblyAI Streaming | Realtime STT | ~400ms | 50 hours/month |
| Groq Whisper | STT fast | ~200ms | 2,000 req/day |
| ElevenLabs Streaming | TTS streaming | ~100ms | 10K chars/month |
| OpenAI Realtime | STT + LLM + TTS | ~200ms | Limited |
Best for:
Speech-to-text and text-to-speech models comparison.
| Model | Provider | Accuracy | Speed | Free Tier | Best For |
|---|---|---|---|---|---|
| Whisper Large v3 | OpenAI/Groq/Local | Excellent | Fast | 2,000 req/day (Groq) | General purpose, local |
| Deepgram Nova | Deepgram | Superior | Very Fast | $200 credits | Production, enterprise |
| AssemblyAI | AssemblyAI | Excellent | Fast | 50 hours/month | Streaming, diarization |
| Whisper API | OpenAI | Excellent | Medium | Pay-per-use | Reliable, consistent |
| Google Speech | Google Cloud | Good | Fast | 60 min/month | Google ecosystem |
| Whisper (local) | OpenAI/Ollama | Excellent | GPU-dependent | Unlimited offline | Privacy, cost control |
| Model | Provider | Quality | Speed | Free Tier | Best For |
|---|---|---|---|---|---|
| ElevenLabs | ElevenLabs | 🏆 Best | Fast | 10K chars/month | Voice cloning, pro voice |
| OpenAI TTS | OpenAI | Excellent | Fast | Pay-per-use | Reliable, cheap |
| Piper | Local | Good | Very Fast | Unlimited offline | Privacy, self-hosted |
| Bark | Suno/Local | Good | Medium | Free (local) | Expressive, local |
| Google TTS | Google Cloud | Good | Fast | 1M chars/month | Google ecosystem |
| WhisperSpeech | Local | Good | Fast | Unlimited | Whisper-based TTS |
| API | Input | Output | Latency | Use Case |
|---|---|---|---|---|
| OpenAI Realtime | Audio | Audio | ~200ms | Voice agents |
| Deepgram Voice | Audio | Text/Audio | ~300ms | Voice bots |
| AssemblyAI LeMUR | Audio | LLM response | ~1s | Voice RAG |
Comparison of image generation models and APIs.
| Model | Provider | Quality | Speed | Free Tier | Best For |
|---|---|---|---|---|---|
| FLUX.2 | Black Forest Labs | 🏆 Excellent | Fast | Local/Replicate | High quality, open |
| DALL-E 3 | OpenAI | 🏆 Best | Medium | ChatGPT Plus / Free tier | High-detail illustration |
| Ideogram 2.0 | Ideogram | Excellent | Fast | 20 prompts/day | Text in images |
| Recraft V4 | Recraft | Excellent | Fast | 30 credits/day | Vector/SVG output |
| Stable Diffusion XL | Stability AI | Good | Fast | Local/DreamStudio | Flexibility, local |
| Midjourney v6 | Midjourney | 🏆 Excellent | Slow | None (paid only) | Artistic, Discord |
| Leonardo.ai | Leonardo | Very Good | Fast | 150 tokens/day | Commercial use, gaming |
| Adobe Firefly | Adobe | Good | Fast | 25 credits/month | Safe, commercial |
| Imagen 3 | Excellent | Medium | Vertex AI trial | Photorealistic | |
| DiffusionBee | Local | Good | Fast | Local unlimited | Easy setup, open-source |
| ComfyUI | Local | Good | Fast | Local unlimited | Advanced, node-based |
| Provider | Model | Free Tier | Notes |
|---|---|---|---|
| Replicate | FLUX.1-schnell | Free tier | Fast inference |
| Pollinations | Various | Unlimited | No signup |
| HuggingFace | SDXL/FLUX | $0.10 credits | Inference API |
| Leonardo | Phoenix | 150 tokens/day | Commercial OK |
Text-to-video and image-to-video generation. Hot area in 2026.
| Model | Provider | Quality | Duration | Free Tier | Best For |
|---|---|---|---|---|---|
| Veo 3 | 🏆 Excellent | 1080p, 60s clips | Limited preview | Cinematic, realistic | |
| Sora 3 | OpenAI | 🏆 Excellent | 120s | ChatGPT Plus | High quality, physics |
| Runway Gen-3 | Runway | Excellent | 10 seconds | 3 free credits | Creative, filmmaking |
| Pika 3.0 | Pika | Very Good | 3-5 seconds | Free tier | Lip-sync improved |
| Luma Dream Machine | Luma | Very Good | 5 seconds | 30 generations/mo | Fast, realistic |
| Kling | Kuaishou | Excellent | 2-10 minutes | Limited | Long-form, Chinese |
| Hailuo AI | MiniMax | Good | 6 seconds | Free tier | Character consistency |
| Stable Video Diffusion | Stability | Good | 4 seconds | Local | Open, flexible |
| Provider | Cost per video | Generation time |
|---|---|---|
| Runway | ~$0.20-0.50 | 1-5 min |
| Pika | ~$0.10-0.30 | 30s-2 min |
| Luma | ~$0.30-0.60 | 2-5 min |
| Kling | ~$0.05-0.20 | 1-10 min |
Tools for AI agents to control browsers - web scraping, form filling, testing.
| Tool | Type | Pricing | Best For |
|---|---|---|---|
| Browserbase | Managed browsers | $5 free tier | Production agents |
| Steel.dev | Browser API | Free tier | AI-native browser control |
| Stagehand | AI browser framework | Open source | Next-gen Playwright |
| Playwright | Browser automation | Free | Reliable, well-documented |
| Puppeteer | Chrome automation | Free | Chrome-specific |
| Selenium | Cross-browser | Free | Legacy support |
| Scrapy | Web scraping | Free | Data extraction |
| Tool | AI Integration | Use Case |
|---|---|---|
| Stagehand | Natural language commands | AI agents controlling browsers |
| Browserbase | Session recording for AI | Training agent trajectories |
| Steel.dev | Built for LLM agents | Agent-native browser API |
Stack Recommendation:
Production-ready vector storage without high costs.
| Provider | Type | Free Tier | Paid | Best For |
|---|---|---|---|---|
| Supabase Vector | Postgres + pgvector | 500MB | $25/mo starter | Full-stack apps |
| Neon | Serverless Postgres | 500MB | $19/mo | Serverless, branching |
| Railway | Managed Postgres | $5 credits | Usage-based | Easy deployment |
| PlanetScale | MySQL + vectors | 5GB | $39/mo | Scale, branching |
| Chroma Cloud | Vector-native | Free tier | Usage-based | Pure vector workloads |
| Qdrant Cloud | Vector DB | 1GB | $25/mo | High performance |
| Pinecone | Managed vector | 2GB | $70/mo | Production, no ops |
| Weaviate Cloud | Vector DB | 5M vectors | $25/mo | Hybrid search |
| LanceDB | Embedded/Cloud | Free | Cloud beta | Multimodal |
| Database | Best For | Notes |
|---|---|---|
| ChromaDB | Prototyping | Simple, Python-native |
| Qdrant | Production | Rust-based, fast |
| Milvus | Enterprise | Scalable, complex |
| pgvector | Postgres apps | Just add extension |
| LanceDB | Embedded | No server needed |
Recommendation by Stage:
Proven patterns for building AI applications.
User → Chat UI → LLM API → Response
↓
Context Memory (Redis/Postgres)
Stack:
Documents → Chunking → Embeddings → Vector DB
↓
User Query → Embedding → Similarity Search → LLM → Response
Stack:
User Request → Agent Controller → Tool 1 (Search)
→ Tool 2 (Code exec)
→ Tool 3 (API call)
↓
Synthesize → Response
Stack:
User Request → Router (classify intent)
↓
┌───────────────┼───────────────┐
↓ ↓ ↓
Cheap Model Medium Model Expensive Model
(GPT-6 Luna) (Claude Sonnet 5.5) (Claude Opus 5.5 / GPT-6 Astra)
↓ ↓ ↓
Simple Q&A Complex task Hard reasoning
Implementation:
Audio Input → STT → LLM → TTS → Audio Output
↓ ↓ ↓ ↓
Deepgram Groq Claude ElevenLabs
Stack:
Image Input → Vision LLM → Structured Output
↓
Database / Action
Stack:
Text Prompt → LLM Enhancement → Image Gen → Upscaling
↓
Video Gen (optional)
Stack:
API pricing for budget planning. Sorted by input cost.
| Model | Provider | Input | Output | Cache Hit | Best For |
|---|---|---|---|---|---|
| MiniMax M2.5 | MiniMax | $0.08 | $0.12 | - | Bulk generation |
| DeepSeek V4 | DeepSeek | $0.28 | $0.55 | $0.03 🎯 | Coding, cached |
| gemini 3.8 Flash | $0.25 | $0.75 | $0.05 🎯 | High throughput, 1M+ context | |
| GPT-6 Luna | OpenAI | $0.30 | $1.20 | - | Efficient lightweight reasoning |
| GLM 4.9 Air | ZAI | $0.35 | $0.75 | - | Chinese/English |
| Qwen3-Coder | Alibaba | ~$0.60 | ~$1.20 | - | Strong agent tasks |
| Claude Haiku 5.5 | Anthropic | $1.00 | $5.00 | $0.10 | High-velocity lightweight tasks |
| MiMo V2.5 Pro | Xiaomi | $1.00 | $3.00 | $0.20 | Long-horizon agents, flat up to 1M ctx |
| Claude Sonnet 5.5 | Anthropic | $2.00 | $10.00 | $0.20 | Flagship coding, 30% fewer tokens/task |
| GPT-6.1 Sol | OpenAI | $2.00 | $10.00 | $0.10 | Workhorse agent, near-Astra coding |
| Claude Opus 5.5 | Anthropic | $5.00 | $25.00 | $0.50 | Enterprise reasoning, secure sandboxing |
| GPT-6 Astra | OpenAI | $10.00 | $50.00 | $1.00 | Autonomous computer operator & frontier |
| Gemini 4 Argon | Frontier | Frontier | - | 1M output token long-horizon (Preview) |
💡 Pro tip: DeepSeek's 90% cache discount makes it cheapest for repetitive tasks with long prompts.
⚠️ October 2026 Generation Note: Claude Sonnet 5.5 lowered rates to $2.00/$10.00 ($0.20 cache read) with 30% lower token usage per task. GPT-6.1 Sol provides near-Astra capabilities at $2.00/$10.00 ($0.10 cache read). Claude Haiku 5.5 is rolling out to replace Haiku 4.5. Claude Opus 5.5 ($5/$25) and GPT-6 Astra ($10/$50) represent the top enterprise and autonomous tiers.
Don't just use SWE-bench - match models to your specific task.
| Model | Why | Free Tier |
|---|---|---|
| Claude Sonnet 5.5 | 70.6% Terminal-Bench 4.0, 55.5% CursorBench, 30% fewer tokens/task | Claude Code / Various |
| GPT-6.1 Sol | Matches Astra on DeepSWE v1.1 at $2/$10, leading agentic performance | ChatGPT Plus/Pro / API |
| Qwen3.6-Plus | 71.2% SWE-bench, Chinese + English, agent-optimized | 2,000 req/day |
| DeepSeek V4 | Near-frontier performance at 1/10th cost | DeepSeek API |
| Model | Why | Free Tier |
|---|---|---|
| Claude Opus 5.5 | Flagship enterprise reasoning, secure sandboxing, prompt-injection defense | Claude Code Pro / Bedrock |
| GPT-6 Astra | Flagship computer operator, long-horizon autonomous planning | ChatGPT Pro / API |
| Gemini 4 Argon | Frontier long-horizon reasoning with 1M output tokens | Fairwind Trusted Testers (Preview) |
| DeepSeek R1 | Specialized reasoning model, math/logic | DeepSeek API |
| MiMo V2.5 Pro | Long-horizon agents (1K+ tool calls), flat rate up to 1M context | Xiaomi Token Plan ($6-$100/mo) |
| Model | Why | Cost per 1M |
|---|---|---|
| gemini 3.8 Flash / Flash-Lite | Primary high-throughput, low-latency models on Google AI Studio ($0.25/$0.75) | 1,500 RPD free |
| GPT-6 Luna | High-efficiency lightweight OpenAI model ($0.30/$1.20) | API |
| MiniMax M2.5 | 80.2% SWE-bench, dirt cheap | $0.08/$0.12 |
| GLM 4.5 Air | Good quality, extremely cheap | ~$0.40/$0.80 |
| Model | Why | Free Tier |
|---|---|---|
| Claude Sonnet 5.5 | Best tool use, 70.6% Terminal-Bench 4.0, adaptive thinking | Various |
| GPT-6.1 Sol | Leads OSWorld 2.0 & Terminal-Bench Science, 24+ hour deep sessions | ChatGPT Plus/Pro / API |
| Qwen3.6-Plus | Built for agentic workflows | 2,000 req/day |
| MiniMax M2.5 (OpenCode) | 80.2% SWE-bench, agent-optimized | Zen Free tier |
| Model | Why | Free Tier |
|---|---|---|
| gemini 3.8 Flash Vision | Leads CharXiv chart reasoning at 84.2%, 1M+ multimodal context | Google AI Studio (1,500 RPD) |
| Claude 5.5 Vision | Exceptional technical diagram, UI, and document analysis | Claude Free / API |
| GPT-4o | Fast multimodal generation and OCR | ChatGPT Free |
| Qwen2.5 VL | Strong open vision model | Various |
| Model | Provider | Free Tier |
|---|---|---|
| Whisper Large v3 | Groq / Local | 2,000 req/day or unlimited local |
| ElevenLabs | ElevenLabs | Basic free tier |
| Piper | Local | Free, offline TTS |
Critical for scaling applications. Plan your architecture.
| Provider | RPM | TPM | Daily | Best For |
|---|---|---|---|---|
| Groq | 30 | Medium | 14,400 | High-throughput apps |
| Cerebras | 30 | 60,000 | 1.5M tokens | Batch processing |
| Gemini Studio | 15 | High | 1,500 | Prototyping |
| OpenRouter | 20 | Medium | 50-1,000 | Flexible routing |
| Cloudflare | 300 | 10K neurons | 10K neurons | Edge deployment |
| Groq (varies) | 30-50 | 6K-30K | 1K-14.4K | Model-dependent |
| App Type | Recommended Stack |
|---|---|
| Document QA / Study App | Cerebras (Qwen3.6-Plus) + Groq |
| AI Reel Generator | gemini 3.8 Flash (video) + Groq (audio) |
| Trading AI | Groq + local Qwen3.6-Plus |
| Chatbot | OpenRouter + gemini 3.8 Flash (cheap) |
| Code Review Bot | DeepSeek V4 (cheap) + Claude Sonnet 5.5 (quality) |
Quick reference for legal safety.
| Provider | Commercial Use | Notes |
|---|---|---|
| OpenRouter | ✅ Yes | All models |
| Groq | ✅ Yes | All models |
| Gemini API | ✅ Yes | Per Google ToS |
| Cohere | ❌ Non-commercial (evaluation only) | Trial API keys strictly prohibit production/revenue use |
| Claude (API) | ✅ Yes | Per Anthropic ToS |
| OpenCode Zen | ✅ Yes | Per Zen ToS |
| DeepSeek | ✅ Yes | No military use restriction |
| Qwen/Alibaba | ✅ Yes | Apache 2.0 models |
| Ollama Local | ✅ Yes | Fully offline |
⚠️ Always verify current ToS - licenses can change.
Build document Q&A and semantic search systems.
| Tool | Best For | Free Tier |
|---|---|---|
| LlamaIndex | Production RAG | Open source |
| LangChain | Flexibility | Open source |
| Haystack | Enterprise | Open source |
| Vercel AI SDK | Edge RAG | Free tier |
| Database | Type | Free Tier | Best For |
|---|---|---|---|
| ChromaDB | Local | Unlimited | Prototyping, small apps |
| LanceDB | Local/Serverless | Generous | Multimodal, embeddings |
| Weaviate | Cloud/Local | 5M vectors | Production scale |
| Supabase Vector | Postgres | 500MB | Full-stack apps |
| Pinecone | Managed | 2GB (1 pod) | Production, no ops |
| Qdrant | Local/Cloud | 1GB cloud | High performance |
| Tool | Purpose |
|---|---|
| RAGAS | Evaluate retrieval quality |
| LlamaIndex Evals | Built-in RAG metrics |
| Arize Phoenix | Observability |
Essential for RAG - don't overlook these.
| Embedding | Provider | Dimensions | Free Tier | Best For |
|---|---|---|---|---|
| text-embedding-3-small | OpenAI | 1536 | 200K tokens/day | General purpose |
| Jina Embeddings v3 | Jina AI | 1024 | 1M tokens/day | Multilingual |
| BGE-Large-EN-v1.5 | HuggingFace/Local | 1024 | Free | High quality retrieval |
| E5-Mistral-7B | Various | 4096 | Varies | Best accuracy |
| Nomic Embed v1.5 | Nomic | 768 | Free tier | Long context (8K) |
| GTE-Large | Alibaba | 1024 | DashScope free | Chinese + English |
| Model | Size | Speed | Quality |
|---|---|---|---|
| BGE-Small | 33M | Fast | Good |
| MiniLM-L6 | 22M | Very Fast | Basic |
| Nomic Embed | 137M | Fast | Excellent |
Scale beyond free tiers.
| Provider | Type | Pricing | Best For |
|---|---|---|---|
| Modal | Serverless GPU | $5-30/month credits | Batch inference |
| RunPod | GPU Cloud | $0.20-0.50/hr | Training, fine-tuning |
| Vast.ai | Spot GPUs | Cheap spot prices | Budget inference |
| Lambda Labs | GPU Cloud | ~$0.60/hr A100 | Stable workloads |
| Beam.cloud | Serverless | Per request | Spiky traffic |
| Baseten | Model serving | $30 credits | Production models |
| Replicate | Model hosting | 6 req/min free | Quick deployment |
| Platform | Cold Start | Best For |
|---|---|---|
| Modal | Fast | Python functions |
| Beam | Fast | ML models |
| Replicate | Medium | Pre-built models |
| HuggingFace Inference | Medium | HF ecosystem |
Benchmark your models before production.
| Tool | Purpose | Free Tier |
|---|---|---|
| Promptfoo | Prompt testing, red-teaming | Open source |
| LangSmith | Tracing, evals | 5K traces/month |
| RAGAS | RAG evaluation | Open source |
| DeepEval | LLM unit testing | Open source |
| Arize Phoenix | Observability | Generous free tier |
| Weights & Biases | Experiment tracking | Academic free |
Force LLMs to return valid JSON/schemas.
| Tool | Approach | Best For |
|---|---|---|
| Instructor | Pydantic validation | Python apps |
| Guidance | Constrained generation | Complex schemas |
| Outlines | Regex/constrained | Fast inference |
| JSONformer | Structure-aware decoding | Local models |
| Zod + Vercel AI SDK | TypeScript validation | Web apps |
Quick reference for badges used in this guide.
| Badge | Meaning |
|---|---|
| 🟢 | No credit card required |
| 💳 | Credit card required |
| ⚡ | Fast inference (low latency) |
| 🧠 | Strong reasoning capabilities |
| 💻 | Coding optimized |
| 📦 | Open source / self-hostable |
| 🔒 | Privacy focused / local |
| 🤖 | Agentic capabilities |
| 🎯 | Best value / cheap |
| 🌐 | Multilingual support |
[verify] | Needs verification from official source |
If you spot an error, missing source link, or have updated quota/model information, please open an issue or pull request with a source.
No affiliation with any vendor. All trademarks belong to their owners. Information is for research; accuracy not guaranteed; limits/pricing change frequently.
This list was compiled and verified using:
MIT © ShaikhWarsi
Last updated: October 5, 2026 • PRs/issues welcome
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