DeepSeek DeepSeek V3.1 Terminus vs Mistral Devstral 2 (123B) — side-by-side specs.
DeepSeek DeepSeek V3.1 Terminus | Mistral Devstral 2 (123B) | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | Mistral |
| Release date | Sep 22 2025 | Dec 9 2025 |
| Model type | — | — |
| Open source | Yes | Yes |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | DeepSeek V3.1 Terminus shipped 78 days before Devstral 2 (123B) | |
DeepSeek V3.1 Terminus and Devstral 2 (123B) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V3.1 Terminus shipped 78 days before Devstral 2 (123B), so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — DeepSeek V3.1 Terminus and Devstral 2 (123B) don't publish scores on any of the same benchmarks.