Anthropic rewrote its Messages API in Rust with no Rust devs
Claude wrote the Rust, humans wrote the plan and diffed old against new on real traffic, and CPU dropped 40 to 50%. swyx confirms the story is real.
Previous issues
- Thorsten Ball: you don't need branches either
- Utah gave 34 state devs Claude Code for four weeks
- Malte Ubl: $9 of DeepSeek did a day's worth of work
- Theo spent $1,500 in tokens trimming T3 Code's tools
- Theo: Gemini hallucinates in over 80% of runs
- Theo: Agents SDK burns your 5-hour Claude limit faster
- Bun AOT runs Claude Code at 267 MB with 67 subagents
- Theo makes three models argue before a merge