Kimi K2 (Jul 2025)
ECI#108
140Kimi K2 (Jul 2025) is an open-weights model from Moonshot, released July 12, 2025. It has an ECI score of 140 and ranks 108th of 249 tracked models. At the time of its release, it ranked 17th of 149 tracked models.
Kimi K2 (Jul 2025) vs select alternatives
| Domain | Benchmark | Kimi K2 (Jul 2025) | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 140 | 140 | 140 | 140 | |
| Ranking | #108 | #109 | #111 | #106 | |
| Conceptual reasoning | SimpleBenchBest score 82% | ||||
| Long context | ForecastBenchBest score 62.5 | 60.2 | — | 58.0 | — |
Fiction.liveBenchBest score 97% | |||||
| Software engineering | Terminal-Bench 2.0Best score 85% | ||||
Aider PolyglotBest score 88% | |||||
WeirdML (v2)Best score 93% | |||||
| Writing & creativity | Lech Mazur WritingBest score 8.6 | 8.6 | 7.7 | — | 7.3 |
