Rumor: Claude Opus 5 Scores 42/42 on 2026 IMO

A circulating evaluation report claims that Claude Opus 5 achieved a perfect score of 42/42 on the 2026 IMO without using agents, demonstrating gold-medal performance.

2026-07-25 ~ 2026-07-25 · 2 related posts

• Claude Opus 5 reportedly scores a perfect 42/42 on the 2026 IMO — exordin26 · 2026-07-25
• Repost claims Claude Opus 5 scored a perfect 42/42 on IMO 2026 problems — inductionheads · 2026-07-25