Bun、11日間で100万行のコードを書き直し――かつてないほど高速に
AnthropicのClaude Fable 5が11日間でBunをZigからRustに書き直し、100万行を超えるコードを生成しました。開発者の生産性における大幅な変化を示す出来事です。
bun developer jarred sumner utilized a pre-release version of anthropic's claude fable 5 to completely rewrite the bun javascript runtime from zig to rust in just 11 days. running 64 instances in parallel, the ai generated over 1 million lines of code for an api cost of $165,000, a task estimated to take a human team a year. the new rust-based bun v1.4.0 canary build fixes 128 memory errors, runs 2-5% faster, and offers improved reliability. this acceleration highlights how advanced models are poised to fundamentally disrupt traditional software development workflows.