USAMO 2026 (Anthropic): leaderboard
Anthropic system-card evaluation on 2026 USAMO-style olympiad math problems, scored by answer correctness.
Metric: Accuracy (%). Source: www-cdn.anthropic.com. Saturation forecast: Around January 2027. 2 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Claude Opus 4.8 | 96.7 | #37 |
| 2 | Claude Opus 4.7 | 69.3 | #49 |
No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.
Interactive version: theaggregate.ai/benchmark?slug=usamo-2026-anthropic · How It Works · Data refreshed daily, snapshot 2026-10-20.