Kimi K3
ECI#20
158Kimi K3 is an open-weights model from Moonshot, released July 16, 2026. It has an ECI score of 158 and ranks 20th of 254 tracked models. At the time of its release, it ranked 8th of 221 tracked models.
Kimi K3 vs select alternatives
| Domain | Benchmark | Kimi K3 | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 158 | 151 | 158 | 158 | |
| Ranking | #20 | #56 | #21 | #22 | |
| Conceptual reasoning | ARC-AGI-2Best score 95% | ||||
| Games | Chess PuzzlesBest score 76% | ||||
Mystery Game PuzzlesBest score 84% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
FrontierMath Tier 4 (v2)Best score 100% | |||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Multimodal | Furniture Assembly BenchmarkBest score 83% | ||||
| Science | GPQA DiamondBest score 96% | ||||
| World knowledge | SimpleQA VerifiedBest score 76% |
