mitsuhiko: coding agents could rewrite CPython in two weeks without humans

Armin Ronacher (mitsuhiko) claims that an Opus 5.5-level coding agent could re-implement all of CPython in about two weeks with zero human input, working purely against test cases.

2026-11-01 ~ 2026-11-01 · 2 related posts

• mitsuhiko: an Opus 5.5 agent could re-implement all of CPython in two weeks, no humans — mitsuhiko · 2026-11-01

1 near-duplicate retellings: mitsuhiko