GPT-6 Luna
ECI#32
157GPT-6 Luna is a closed-weights model from OpenAI, released September 22, 2026. It has an ECI score of 157 and ranks 32nd of 237 tracked models. At the time of its release, it ranked 25th of 226 tracked models.
GPT-6 Luna vs select alternatives
| Domain | Benchmark | GPT-6 Luna | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 157 | 154 | 157 | 156 | |
| Ranking | #32 | #47 | #30 | #33 | |
| 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% |
