>If rewrites are so easy, why not rewrite CC in a native language? Would’ve been... | Hacker News

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abc42 68 days ago | parent | context | favorite | on: Claude Code uses Bun written in Rust now

>If rewrites are so easy, why not rewrite CC in a native language? Would’ve been a hell of a lot cheaper.

Yeah, good question. OpenAI decided to rewrite Codex in Rust about a year ago[0].

In fact, since rewrites are that easy, what do we need Bun for? Why doesn't everybody just port all of their Javascript code into Rust?

[0] https://github.com/openai/codex/discussions/1174

frollogaston 68 days ago [–]

Code verbosity and complexity still matter with LLM coding

abc42 68 days ago | [–]

Yeah, they do, but probably not in quite the same way as it matters to humans.

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