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swyx 转述称 Anthropic 将 Messages API 用 Rust 重写，团队没有专职 Rust 工程师，代码由 Claude 编写，人类负责制定计划并在真实流量上核对新旧实现一致，CPU 下降 40-50%。原帖认为 "never do the big rewrite" 已是过时建议。
正文
its true, Anthropic really vibecoded their entire backend to Rust and none of you noticed
Anthropic rewrote its Messages API in Rust. Zero Rust devs on the team. Claude wrote the code. Humans wrote the plan and checked old vs new matched on real traffic. CPU dropped 40-50%. Pretty sure "never do the big rewrite" is dead advice. @katelyn_lesse on @latentspacepod在 X 查看被引用的帖子
来源：swyx · x.com