DeepSeek-V3.1
ECI#125
140DeepSeek-V3.1 is an open-weights model from DeepSeek, released August 21, 2025. It has an ECI score of 140 and ranks 125th of 254 tracked models. At the time of its release, it ranked 23rd of 151 tracked models.
DeepSeek-V3.1 vs select alternatives
| Domain | Benchmark | DeepSeek-V3.1 | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 140 | 139 | 141 | 140 | |
| Ranking | #125 | #131 | #118 | #126 | |
| Conceptual reasoning | LMCABest score 68.3 | 24.3 | — | — | 22.1 |
SimpleBenchBest score 82% | |||||
DTBenchBest score 99% | |||||
| Long context | Fiction.liveBenchBest score 97% | ||||
| Software engineering | WeirdML (v2)Best score 94% |
