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 idkwhattoputherenow/gemma-4-E2B-it-qat-q4_0-maxerr:Q4_0
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": "idkwhattoputherenow/gemma-4-E2B-it-qat-q4_0-maxerr:Q4_0"
        }
      ]
    }
  }
}
Run Pi
# Start Pi in your project directory:
pi
Quick Links

maxerr quant of gemma-4-E2B qat

E2B                                                         Mean KLD     Same Top%    RMS Δp%       95% KLD
----                                                        --------     ---------     -------       -------
original maxerr Q4_0 vs original F32                        0.001650       98.123%      1.008%      0.005250
unsloth Q4_K_XL vs original F32                             0.001728       98.105%      1.019%      0.005646
google Q4_0 vs original F32                                 0.051096       89.294%      5.374%      0.175384
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Model size
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Architecture
gemma4
Hardware compatibility
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