o3-mini is a closed-weights model from OpenAI, released January 31, 2025. It has an ECI score of 141 and ranks 124th of 240 tracked models. At the time of its release, it ranked 2nd of 91 tracked models.
| Domain | Benchmark | ||||
|---|---|---|---|---|---|
ECI scoreBest score 173 | 141 | 141 | 139 | 134 | |
| Ranking | #124 | #117 | #129 | #148 | |
| Conceptual reasoning | ARC-AGI-2Best score 95% | ||||
ARC-AGI-1Best score 99% | |||||
| Games | Chess PuzzlesBest score 79% | ||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 95% | ||||
MATH Level 5Best score 98% | |||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | GPQA DiamondBest score 97% | ||||
| Software engineering | Aider PolyglotBest score 88% | ||||
| World knowledge | SimpleQA VerifiedBest score 94% |