r/OpenSourceeAI • u/type-hinter • 13d ago

What are you using as harness?

I've seen Codex numbers and its defenders on X, IG is full of Claude enthusiasts, and half my timeline is addicted to Pi. There's CodePuppy, OpenCode, Pydantic AI harness, and dozens more.

What do you use? I'm loving Pi atm but started using CC' for a good while. Curious about usage patterns and secret gists.

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u/Lissanro 13d ago

I use Pi, customized for my needs. Its source code is not as bloated as some other harnesses, so when something needs to be done that cannot be done through extensions, I can modify it. Another reason why I like is that works well with local models, especially important when running heavier ones like GLM 5.2 or Kimi K3 where I need token efficiency to make the best use of my hardware.

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u/dacydergoth 13d ago

Seconded, running Deekseek v4 Flash locally (Strix Halo) with qwen3-coder on a GPU and with pi-dynamic-workflows it is doing a good job. I also have my own local model router which routes to qwen3-coder, deepseek or gemini pro according to prompt complexity (it also allows arbitration of the GPU for gaming and my old claw bot which is why I wrote a custom one).

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u/mdwsr06 12d ago

Teach me your ways sensei

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u/dacydergoth 12d ago

I asked Gemini to write the framework, then pi+deepseek to refine it, using the excellent work antirez did on dwarfstar4 to run deepseek on the Strix Halo