math benchmark
USAMO25 is a benchmark based on six proof-based mathematical problems from the 2025 United States of America Mathematical Olympiad.
Updated Sep 5, 2026
Higher score ranks better on this benchmark.
Rank | Model | Score | Percentile | Participants | Evidence | Evaluated |
|---|
| Rank01 | ModelAN | Score97.60% | Percentile100.00% | Participants3 | EvidenceC | Evaluated |
| Rank02 | ModelXA | Score61.90% | Percentile50.00% | Participants3 | EvidenceC | Evaluated |
| Rank03 | ModelXA | Score37.50% | Percentile0.00% | Participants3 | EvidenceC | Evaluated |
The leading models and scores on this benchmark.
A closer view of the leading scores on this benchmark.
The first five results on this benchmark, with official price and output speed added where the model identity can be matched.
What USAMO25 measures and how its scores work.
USAMO25 is a math benchmark consisting of six challenging problems from the 2025 United States of America Mathematical Olympiad.
It measures mathematical problem-solving, formal mathematical reasoning, and proof generation beyond simple numerical computation.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
LLM Stats. Benchmark scores retain their original unit. Overall score eligibility is shown separately.
Common questions about USAMO25.
Claude Mythos Preview is currently ranked first with 97.60%.
The current leaders are Claude Mythos Preview (97.60%), Grok-4 Heavy (61.90%), and Grok-4 (37.50%).
No matched official input price is currently available.
The fastest matched records are Grok-4 (100.00 tok/s via xAI).
No. This benchmark measures one defined capability or task. The overall LLMBoard score uses a separate aggregation across eligible benchmark evidence.
It measures mathematical problem-solving, formal mathematical reasoning, and proof generation beyond simple numerical computation.
Yes. Higher values rank better for this benchmark.
3 model results are currently shown.
No. This benchmark is shown for reference but does not contribute to the overall score.
Ranking basisThis usamo25 AI model leaderboard uses descending score in the benchmark original unit. The leaderboard ranking keeps matched price and speed data separate from benchmark evidence.
Selection summary
Claude Mythos Preview currently leads USAMO25 with 97.60%. It is the top model on this specific benchmark, while the best LLM for the broader task should also be checked against other benchmarks, price, and runtime.
Use this leaderboard with the supporting benchmark results and coverage details above. A leaderboard position summarizes the selected ranking signal; it does not replace workload-specific testing.