Qwen3.5 397B-A17B
ECI#77
147Qwen3.5 397B-A17B is an open-weights model from Alibaba, released February 13, 2026. It has an ECI score of 147 and ranks 77th of 254 tracked models. At the time of its release, it ranked 13th of 172 tracked models.
Qwen3.5 397B-A17B vs select alternatives
| Domain | Benchmark | Qwen3.5 397B-A17B | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 147 | 144 | 146 | 144 | |
| Ranking | #77 | #101 | #85 | #95 | |
| Conceptual reasoning | LMCABest score 68.3 | 37.9 | 29.3 | 36.9 | 35.0 |
DTBenchBest score 99% | |||||
| Games | Mystery Game PuzzlesBest score 84% | ||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | CritPt v1Best score 36% | ||||
GPQA DiamondBest score 96% |
