Kimi K2.6
ECI#42
151Kimi K2.6 is an open-weights model from Moonshot, released April 20, 2026. It has an ECI score of 151 and ranks 42nd of 249 tracked models. At the time of its release, it ranked 14th of 207 tracked models.
Kimi K2.6 vs select alternatives
| Domain | Benchmark | Kimi K2.6 | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 151 | 148 | 152 | 149 | |
| Ranking | #42 | #55 | #39 | #50 | |
| Games | Chess PuzzlesBest score 72% | ||||
Earthborne Rangers (EBR-bench)Best score 76% | |||||
Mystery Game PuzzlesBest score 84% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
FrontierMath Tier 4 (v2)Best score 98% | |||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | GPQA DiamondBest score 96% | ||||
| Software engineering | SWE-bench VerifiedBest score 83% | ||||
| World knowledge | SimpleQA VerifiedBest score 76% |
