GPT-5 Pro
ECI#57
151GPT-5 Pro is a closed-weights model from OpenAI, released October 7, 2025. It has an ECI score of 151 and ranks 57th of 254 tracked models. At the time of its release, it ranked 1st of 157 tracked models.
GPT-5 Pro vs select alternatives
| Domain | Benchmark | GPT-5 Pro | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 151 | 150 | 147 | 146 | |
| Ranking | #57 | #63 | #78 | #80 | |
| Conceptual reasoning | SimpleBenchBest score 82% | ||||
ARC-AGI-2Best score 95% | |||||
ARC-AGI-1Best score 99% | |||||
| Games | Chess PuzzlesBest score 76% | ||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
FrontierMath Tier 4 (v2)Best score 100% | |||||
| Science | Humanity's Last ExamBest score 55% | ||||
| Software engineering | AlgoTuneBest score 2.0x | 1.3x | 1.7x | 1.5x | — |
WeirdML (v2)Best score 94% |
