GPT-6 Astra
ECI#1 – Best
169GPT-6 Astra is a closed-weights model from OpenAI, released September 3, 2026. It has an ECI score of 169 and ranks 1st of 254 tracked models.
GPT-6 Astra vs select alternatives
| Domain | Benchmark | GPT-6 Astra | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 169 | 163 | 166 | 158 | |
| Ranking | #1 – Best | #10 | #6 | #20 | |
| Games | SpireClimbBest score 26% | ||||
Chess PuzzlesBest score 76% | |||||
Earthborne Rangers (EBR-bench)Best score 78% | |||||
Mystery Game PuzzlesBest score 84% | |||||
| Mathematics | FrontierMath ErdősBest score 4% | ||||
FrontierMath Tier 4 (v2)Best score 100% | |||||
| Multimodal | Furniture Assembly BenchmarkBest score 83% | ||||
| Software engineering | MirrorCodeBest score 79% | ||||
| World knowledge | SimpleQA VerifiedBest score 76% |
