o3-mini
ECI#107
140o3-mini is a closed-weights model from OpenAI, released January 31, 2025. It has an ECI score of 140 and ranks 107th of 249 tracked models. At the time of its release, it ranked 2nd of 109 tracked models. At $1.10/Mtok for input tokens and $4.40/Mtok for output tokens, it is more expensive per token than similarly-capable models.
Input price$1.10 / 1M tokens
Output price$4.40 / 1M tokens
ParametersUnknown
Training computeUnknown
o3-mini vs select alternatives
Reasoning
| Domain | Benchmark | o3-mini | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 140 | 142 | 139 | 135 | |
| Ranking | #107 | #98 | #116 | #132 | |
| Conceptual reasoning | ARC-AGI-2Best score 95.0% | ||||
ARC-AGI-1Best score 98.5% | |||||
| Games | Chess PuzzlesBest score 72.0% | ||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 93.7% | ||||
MATH Level 5Best score 98.1% | |||||
OTIS Mock AIME 2024-2025Best score 100.0% | |||||
| Science | GPQA DiamondBest score 95.8% | ||||
| Software engineering | Aider PolyglotBest score 88.0% | ||||
| World knowledge | SimpleQA VerifiedBest score 75.6% |
