AI Rebuilt a 16‑K‑Line Bioinformatics Suite Solo – MirrorCode Shows New Scale
MirrorCode challenges LLMs to rewrite entire open‑source programs from scratch. Claude Opus 4.7 rebuilt gotree, a 16 000‑line Go bioinformatics toolkit, in 14 hours for $251, a task that would take a human weeks. The benchmark shows AI can now tackle multi‑thousand‑line codebases, but scores still hover around 56%.