DeepSeek-V3.1
ECI#111
140DeepSeek-V3.1 is an open-weights model from DeepSeek, released August 21, 2025. It has an ECI score of 140 and ranks 111th of 249 tracked models. At the time of its release, it ranked 24th of 160 tracked models.
DeepSeek-V3.1 vs select alternatives
| Domain | Benchmark | DeepSeek-V3.1 | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 140 | 139 | 141 | 140 | |
| Ranking | #111 | #116 | #101 | #109 | |
| Conceptual reasoning | LMCABest score 63.3 | 24.3 | — | — | 22.1 |
SimpleBenchBest score 82% | |||||
DTBenchBest score 98% | |||||
| Long context | ForecastBenchBest score 62.5 | 58.0 | 60.0 | — | — |
Fiction.liveBenchBest score 97% | |||||
| Software engineering | WeirdML (v2)Best score 93% |
