Opus 5.5 Cracks 1,800-Line Decompiled Function in One Pass

Developer banteg reported that Claude Opus 5.5 solved a 1,800-line playerupdate function in his Crimsonland decompilation project in one pass, a task where GPT models had stalled over hundreds of accumulated agent hours since July.

2026-09-28 ~ 2026-09-28 · 3 related posts

• Opus 5.5 Cracks a 1,800-Line Function After 100+ Agent-Hours in Decomp Project — banteg · 2026-09-28
• Dev claims Opus 5.5 one-shotted a stubborn 1,800-line function after 100+ agent-hours by GPT models — almmaasoglu · 2026-09-28

1 near-duplicate retellings: banteg