Qwen3.5 397B-A17B
ECI#73
147Qwen3.5 397B-A17B is an open-weights model from Alibaba, released February 13, 2026. It has an ECI score of 147 and ranks 73rd of 257 tracked models. At the time of its release, it ranked 16th of 183 tracked models.
Qwen3.5 397B-A17B vs select alternatives
| Domain | Benchmark | Qwen3.5 397B-A17B | |||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 147 | 144 | 146 | 144 | |
| Ranking | #73 | #95 | #82 | #89 | |
| Conceptual reasoning | LMCABest score 68.2 | 37.9 | 29.3 | 36.9 | 35.0 |
DTBenchBest score 99% | |||||
| Games | Chess PuzzlesBest score 72% | ||||
Mystery Game PuzzlesBest score 84% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | GPQA DiamondBest score 96% |
