Qwen 3.8 27B
ECI#58
149Qwen 3.8 27B is an open-weights model from Alibaba, released August 14, 2026. It has an ECI score of 149 and ranks 58th of 257 tracked models. At the time of its release, it ranked 45th of 244 tracked models.
Qwen 3.8 27B vs select alternatives
| Domain | Benchmark | Qwen 3.8 27B | |||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 149 | 149 | 154 | 150 | |
| Ranking | #58 | #59 | #40 | #52 | |
| Conceptual reasoning | LMCABest score 68.2 | 41.4 | 42.5 | 44.0 | — |
ARC-AGI-2Best score 95% | |||||
ARC-AGI-1Best score 99% | |||||
DTBenchBest score 99% | |||||
| Mathematics | ProofBenchBest score 100% | ||||
| Science | CritPtBest score 32% | ||||
SciCodeBest score 67% | |||||
| Software engineering | Text Arena (Coding)Best score 1820 | 1593 | 1479 | 1517 | 1407 |