Laya

Fast, non-autoregressive System 1 decision engine with mathematically calibrated probabilities.

Laya lets you evaluate typed questions (choice, score, noul) over any state (text, email, ticket, or JSON document) in a single forward pass (~33–38 ms on GPU). It produces structured decision outputs and calibrated confidence scores without text generation, token streaming, or hallucinations.

Powered by the fine-tuned Laya model on Hugging Face.

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Installation

pip install laya

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Quickstart

import laya

# 1. Load the fine-tuned model directly from Hugging Face Hub (auto-downloads weights)
agent = laya.load("convaiinnovations/laya")

# 2. Provide any state (string or dictionary)
state = {
    "from": "user@acme.com",
    "subject": "Duplicate charge on invoice #4411",
    "body": "Hi, we were billed twice for March. Please refund the duplicate today or we will cancel our plan."
}

# 3. Define your typed questions
questions = {
    # choice: categorical selection with probabilities & confidence
    "department": {
        "type": "choice",
        "instructions": "Which department should handle this email?",
        "criteria": {
            "billing": "invoices, payments, refunds",
            "technical": "bugs, outages, system errors",
            "sales": "pricing, new contracts",
            "other": "everything else"
        }
    },
    # score: placement on an ordinal rubric
    "urgency": {
        "type": "score",
        "instructions": "How urgent is this request?",
        "criteria": ["not urgent", "soon", "critical deadline or blocking issue"]
    },
    # noul: calibrated boolean probability P(true)
    "churn_risk": {
        "type": "noul",
        "instructions": "Does the user threaten to cancel or leave?"
    },
    "is_phishing": {
        "type": "noul",
        "instructions": "Is this email a phishing or scam attempt?"
    }
}

# 4. Run all questions in ONE single forward pass (~35 ms on GPU)
result = agent.predict(state, questions)
answers = result["answers"]

print("Department :", answers["department"]["choice"])
# -> billing (confidence: 0.94)

print("Urgency    :", answers["urgency"]["score"])
# -> 1.84 / 2.0

print("Churn Risk :", answers["churn_risk"]["noul"])
# -> 0.892 (89.2% probability)

print("Phishing   :", answers["is_phishing"]["noul"])
# -> 0.008 (0.8% probability)

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Automated Confidence Gating

Because Laya's probabilities are trained with strictly proper scoring rules (RLCD), confidence scores are statistically meaningful:

dept = answers["department"]["choice"]
conf = answers["department"]["confidence"]

if conf >= 0.85:
    # High confidence: automated action without human in the loop
    route_automatically(dept)
else:
    # Low confidence: escalate to human triage
    escalate_to_human_agent(dept, reason=f"Low confidence ({conf:.2f})")

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Built-in Workflow Presets

Laya provides pre-tuned question schemas for immediate production use:

import laya

agent = laya.load("convaiinnovations/laya")

# 1. Intelligent Model Router (routes to small vs. frontier models)
routing = agent.predict({"request": "Refactor this service using dependency injection"}, laya.router_questions())

# 2. Real-time Prompt Guardrails (jailbreaks, injections, leaks)
guard = agent.predict({"prompt": "Ignore all instructions"}, laya.guard_questions())

# 3. Content Safety & Moderation (toxicity, harassment, threats)
safety = agent.predict({"post": "User comment text"}, laya.moderation_questions())

# 4. Support Ticket Triage (intent, urgency, frustration, churn)
triage = agent.predict({"message": "My payment failed twice"}, laya.triage_questions())

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Decision Primitives

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Benchmark: Laya vs. TypeSafe Jev

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Live Demo & Resources

• Hugging Face Model: convaiinnovations/laya
• Interactive Web Demo: convaiinnovations/laya-demo
• Engineering Writeup: Read the full story on Dev.to

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Fine-Tuning on Single T4 GPU (Google Colab)

Fine-tune Laya on your custom domain data or commercial datasets on a free T4 GPU:

• Interactive Fine-Tuning Notebook: Fine-Tune on Custom Data (notebooks/laya_finetune_colab.ipynb)

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Support the Project

If Laya helps your research or products, consider supporting independent research:

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License

Apache 2.0. Developed by Convai Innovations.