How to use from
Pi
Start the llama.cpp server
# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama serve -hf flywheel-ai/construction:Q4_K_M
Configure the model in Pi
# Install Pi:
npm install -g @mariozechner/pi-coding-agent
# Add to ~/.pi/agent/models.json:
{
  "providers": {
    "llama-cpp": {
      "baseUrl": "http://localhost:8080/v1",
      "api": "openai-completions",
      "apiKey": "none",
      "models": [
        {
          "id": "flywheel-ai/construction:Q4_K_M"
        }
      ]
    }
  }
}
Run Pi
# Start Pi in your project directory:
pi
Quick Links

Flywheel — construction (35b-v1.1)

An open-source vertical AI-employee model from Flywheel by OpSpot, fine-tuned (LoRA) from Qwen/Qwen3.6-35B-A3B (Apache-2.0) for the construction domain.

Practical construction and trades assistant: estimating and takeoffs, materials and methods, code and permit awareness, scheduling and sequencing, and jobsite safety.

  • Base: Qwen/Qwen3.6-35B-A3B · License: Apache-2.0 · Version: 35b-v1.1
  • Formats: safetensors (transformers / vLLM, ~65G) + model-q4_k_m.gguf (llama.cpp / Ollama, ~20G)

Download (one command)

pip install -U huggingface_hub
hf download flywheel-ai/construction                      # full repo (safetensors + GGUF)
hf download flywheel-ai/construction model-q4_k_m.gguf    # just the GGUF

Run

# llama.cpp
llama-server -m model-q4_k_m.gguf -ngl 999
# Ollama (pulls the GGUF straight from HF)
ollama run hf.co/flywheel-ai/construction
# vLLM (serves the safetensors)
vllm serve flywheel-ai/construction

Guardrail

Not a substitute for a licensed professional; defer to a licensed engineer, inspector, or local code for structural, electrical, permit, and safety-critical decisions.

Provenance & honesty

v1.0 is trained on synthetic seed data authored by permissively-licensed local models (Apache/MIT teachers only — never distilled from closed models). On general prompts it is roughly on par with the base; the niche edge sharpens as consented real usage flows through the OpSpot flywheel. Built on Qwen3.6 (Apache-2.0).

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