Opus 5.5 Sets New Record on Bug Hunt Bench

Pawel Huryn reports that Anthropic's Opus 5.5 (max) set a new record on Bug Hunt Bench with up to 163 model calls and over 800 self-check rounds. He later corrected earlier figures, noting the gap between Opus 5.5 and Sonnet 5.5 is even larger than first described.

2026-09-29 ~ 2026-09-29 · 2 related posts

• Opus 5.5 sets Bug Hunt Bench record with 800+ self-check turns — PawelHuryn · 2026-09-29
• Author corrects Bug Hunt Bench numbers, contrast even starker — PawelHuryn · 2026-09-29