Mathematics · Benchmark profile
Proof-based olympiad performance on all six IMO 2026 problems.
Data verified 27 Jul 2026 · Methodology 1.7.0
Benchmark score on International Mathematical Olympiad 2026
Claude Opus 5 leads at 42%.
Visual analysis
Switch between model placement, score distribution and descriptive provider averages. Every view uses the same sourced leaderboard.
1 ranked models · higher is better · labels show rank and score
| Model | Rank | Provider | Score |
|---|---|---|---|
| Claude Opus 5 | #1 | Anthropic | 42% |
One best score per model · higher is better
| Rank | Model | Provider | License | Evidence use | Score |
|---|---|---|---|---|---|
| #1 | Claude Opus 5 claude-opus-5 | Anthropic | closed | Estimated reference | 42% |
About International Mathematical Olympiad 2026
Proof-based olympiad performance on all six IMO 2026 problems. 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
Proof-based olympiad performance on all six IMO 2026 problems.
Claude Opus 5 by Anthropic currently leads with 42%.
1 model in the LuminaBench cohort have a qualifying score on this benchmark.
No. This benchmark is display-only and does not enter the overall Lumina composite.
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