---

title: Telltale sdk: gradio sdk_version: 6.18.0 app_file: app.py python_version: "3.10" colorFrom: indigo colorTo: gray short_description: AI poker roguelike with table talk. models:

• nvidia/NVIDIA-Nemotron-3-Nano-4B-BF16
• nvidia/NVIDIA-Nemotron-3-Nano-4B-GGUF tags:
• gradio
• zerogpu
• build-small
• thousand-token-wood
• off-brand
• best-agent
• tiny-titan
• nvidia-nemotron
• codex

---

Telltale

Telltale is a single-player Texas Hold'em roguelike about pressure, memory, and table talk. You climb five casino floors against fixed AI opponents who speak in character, remember the run, and make legal poker decisions from a solver-informed local model prompt.

Hackathon Fit

• Track: Thousand Token Wood.
• Deadline Space runtime: ZeroGPU with nvidia/NVIDIA-Nemotron-3-Nano-4B-BF16, because the hackathon org currently cannot upgrade paid GPU hardware.
• Full standard-GPU runtime: actual llama.cpp through llama-server, not llama-cpp-python.
• ZeroGPU model: nvidia/NVIDIA-Nemotron-3-Nano-4B-BF16, under the 32B cap, Tiny Titan-friendly, and NVIDIA sponsor-aligned.
• Standard-GPU model target: nvidia/NVIDIA-Nemotron-3-Nano-4B-GGUF, under the 32B cap and eligible for the Nemotron sponsor path.
• Gradio: app.py exposes a gr.Server app with a custom React frontend instead of a stock Blocks UI.
• Target badges/prizes: Off Brand, Best Agent, Tiny Titan, Best Demo, Nemotron Hardware Prize, and Best Use of Codex.

Local Development

uv sync
uv run pytest
cd telltale/web
npm ci
npm run build

Text-only mock mode is useful for fast local tests:

TELLTALE_MODEL_MODE=mock uv run python app.py

Actual llama.cpp Runtime

Run a local llama-server first:

llama-server \
  --host 127.0.0.1 \
  --port 8080 \
  --hf-repo nvidia/NVIDIA-Nemotron-3-Nano-4B-GGUF:Q4_K_M \
  --hf-file NVIDIA-Nemotron3-Nano-4B-Q4_K_M.gguf \
  --alias telltale-agent \
  --ctx-size 4096 \
  --n-gpu-layers 999

Then launch Telltale:

TELLTALE_MODEL_MODE=llama_server \
TELLTALE_LLAMA_SERVER_URL=http://127.0.0.1:8080 \
uv run python app.py

The older llama_cpp mode string is accepted as a compatibility alias, but the runtime is now llama_server.

Hugging Face Space

Create the Space under the build-small-hackathon organization with:

• SDK: Gradio
• Hardware: ZeroGPU
• Visibility: Public

The frontend build is committed under telltale/web/dist because Gradio Spaces do not run the Vite build automatically.

On Hugging Face, the default runtime becomes TELLTALE_MODEL_MODE=zero_gpu automatically when SPACE_ID is present. If the model path has trouble close to submission, add this Space variable to force the emergency text-only demo:

TELLTALE_MODEL_MODE=mock

When standard GPU hardware is available, switch to:

TELLTALE_MODEL_MODE=llama_server

and run the actual llama-server setup described above.

Voice

Voice is progressive enhancement. Text gameplay remains fully playable.

• TTS target: OpenBMB VoxCPM2 for sponsor-aligned creative character voices, with a fallback to a lightweight local TTS if needed.
• STT target: Cohere Transcribe or Nemotron 3 ASR for sponsor-aligned speech input.
• Current API surface includes transcription and cached audio endpoints so the concrete model can be swapped without changing gameplay.

Traces

Every model-driven agent decision records prompt, model output, solver recommendation, repairs, memory changes, and runtime metadata. Use the trace export button in the UI or call:

curl http://127.0.0.1:7860/api/trace/<run_id>

Known Limitations

• TTS/STT model implementations are intentionally behind wrappers so the final sponsor model can be selected without touching game state.
• ZeroGPU mode is the deadline-compatible org deployment path; actual llama.cpp mode requires standard GPU hardware.
• Demo video and social-post links must be added before final submission.