Mathematics · Benchmark profile
United States of America Mathematical Olympiad 2026 problems used as an expert math evaluation.
Data verified 27 Jul 2026 · Methodology 1.8.0
Benchmark score on USAMO 2026
Claude Mythos 5 leads at 99.8%, followed by Claude Opus 4.8 (96.7%) and MiniMax M3 (85.7%).
3 ranked models · higher is better · labels show rank and score
| Model | Rank | Provider | Score |
|---|---|---|---|
| Claude Mythos 5 | #1 | Anthropic | 99.8% |
| Claude Opus 4.8 | #2 | Anthropic | 96.7% |
| MiniMax M3 | #3 | MiniMax | 85.7% |
One best score per model · higher is better
| Rank | Model | Provider | License | Evidence use | Score |
|---|---|---|---|---|---|
| #1 | Claude Mythos 5 claude-mythos-5 | Anthropic | closed | Ranking eligible | 99.8% |
| #2 | Claude Opus 4.8 claude-opus-4-8 | Anthropic | closed | Ranking eligible | 96.7% |
| #3 | MiniMax M3 MiniMax-M3 | MiniMax | open | Ranking eligible | 85.7% |
The top of this snapshot is led by Claude Mythos 5 at 99.8%; third place is 14.1 points behind. The top-3 spread is 14.1 points.
About USAMO 2026
United States of America Mathematical Olympiad 2026 problems used as an expert math evaluation. Results stay tied to the exact model variant and evaluation system. Multiple systems for the same model use the best published score on this page; overall Lumina scoring uses the median of ranking-eligible rows.
Open benchmark source ↗FAQ
United States of America Mathematical Olympiad 2026 problems used as an expert math evaluation.
Claude Mythos 5 by Anthropic currently leads with 99.8%.
3 models in the LuminaBench cohort have a qualifying score on this benchmark.
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