Grok 4.6
ECI#24
158Grok 4.6 is a closed-weights model from xAI, released August 12, 2026. It has an ECI score of 158 and ranks 24th of 237 tracked models. At the time of its release, it ranked 10th of 211 tracked models.
Grok 4.6 vs select alternatives
| Domain | Benchmark | Grok 4.6 | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 158 | 155 | 158 | 158 | |
| Ranking | #24 | #42 | #23 | #22 | |
| 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% | ||||
| Software engineering | MirrorCodeBest score 79% | ||||
| World knowledge | SimpleQA VerifiedBest score 76% |
