Mistral Medium 3 is a closed-weights model from Mistral AI, released May 7, 2025. It has an ECI score of 134 and ranks 136th of 247 tracked models. At the time of its release, it ranked 29th of 136 tracked models. At $0.40/Mtok for input tokens and $2/Mtok for output tokens, it is less expensive per token than similarly-capable models.
| Domain | Benchmark | ||||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 134 | 129 | 135 | 136 | |
| Ranking | #136 | #158 | #132 | #127 | |
| Conceptual reasoning | DTBenchBest score 98.4% | ||||
| Mathematics | MATH Level 5Best score 98.1% | ||||
OTIS Mock AIME 2024-2025Best score 100.0% | |||||
| Science | GPQA DiamondBest score 95.8% | ||||
| Writing & creativity | Lech Mazur WritingBest score 8.6 | 7.7 | — | — | 7.7 |