AI Rebuilt a 16k‑Line Go Program Alone, Proving Autonomous Coding Scale
Epoch AI’s MirrorCode benchmark asks models to re‑implement whole open‑source programs from scratch. The toughest case so far—Claude Opus 4.7 recreating the 16,000‑line Go bioinformatics suite gotree—finished in 14 hours for $251, a task that would take a human weeks. It shows autonomous coding is already tackling multi‑thousand‑line projects.