Zig project enforces strict anti-LLM contribution policy across all community interactions
By
Simon Willison
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Summary
Zig, a prominent open source programming language project, has implemented one of the strictest anti-LLM policies among major open source projects. The policy prohibits the use of LLMs for issues, pull requests, and bug tracker comments, including translations. This stands in notable contrast to the Bun JavaScript runtime (the most prominent project written in Zig), which was acquired by Anthropic in December 2025 and makes heavy use of AI assistance. Bun also operates its own fork of Zig.
Key quotes
· 3 pulledNo LLMs for issues.
No LLMs for pull requests.
No LLMs for comments on the bug tracker, including translation.
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