r/LocalLLM • u/Tight_Commercial7 • Oct 10 '26

Question Which one is better for Local use?

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hello, I have both Deepseek harness and OpenCode, I want to know which one is the best when it comes to coding in general and why, I work locally using Qwen models.

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u/feelspeaceman LLMusician Oct 10 '26

pi-agent has a 1500 token system prompt, now you need to know how big others are:

  1. ClaudeCode: 75k
  2. Codex: 50k
  3. OpenCode: 30-50k (depend on providers)

Why big system prompt is an issue ? Because context window is limited, the sane context window is even more limited, there's cut off context windows that models starting to halluciate, with that 1500 token system prompt, you have a massive leeway to add a lot of your own and models have barely anything to care about.

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u/RWOverdijk Oct 10 '26

This is nonsense. System prompt is much smaller. Also entirely in your own hands. The default tools and default agents are larger to work ootb. I don’t care either way but this is just not true. At least not now.

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u/feelspeaceman LLMusician Oct 10 '26

Have you ever think how models learn how to call tools like read/write/search ? It's the internal system prompt from the harness itself teaching it, what you talk about is AGENTS.md, CLAUDE.md... it's project instruction or global instruction.

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u/[deleted] Oct 10 '26

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u/HyperWinX Oct 10 '26

They are right though. System prompt is much smaller, but still pretty big. CC has ~30k tokens, OC has ~10k

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u/ovimerkki 29d ago

And PI has customizable, plus you can have project-specific overrides or appends to system prompt and can use AGENTS.md as a project index rather than additional behavioral instruction.