Qwen 3.8 27B is an open-weights model from Alibaba, released August 14, 2026. It has an ECI score of 152 and ranks 55th of 254 tracked models. At the time of its release, it ranked 36th of 233 tracked models.
| Domain | Benchmark | ||||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 152 | 149 | 154 | 152 | |
| Ranking | #55 | #66 | #45 | #53 | |
| Agent | APEX-AgentsBest score 87% | ||||
| Conceptual reasoning | LMCABest score 68.3 | 41.4 | 42.5 | 44.0 | 45.8 |
ARC-AGI-2Best score 95% | |||||
ARC-AGI-1Best score 99% | |||||
DTBenchBest score 99% | |||||
| Mathematics | ProofBenchBest score 100% | ||||
| Science | CritPt v1Best score 36% | ||||
SciCodeBest score 67% | |||||
| Software engineering | Text Arena (Coding)Best score 1820 | 1593 | 1479 | 1517 | 1593 |