Devstral 2
Open-weights 123B dense coding model for code agents, with a 256K context window, released with the 24B Devstral Small 2 and the Mistral Vibe CLI.
Today, we're releasing Devstral 2—our next-generation coding model family available in two sizes: Devstral 2 (123B) and Devstral Small 2 (24B).
Official source
Introducing: Devstral 2 and Mistral Vibe CLI.mistral.ai · published
Benchmarks
| Benchmark | Score | Human-verified |
|---|---|---|
| SWE-bench Verified | 72.2% | Not yet |
Reported by Mistral
- Introducing: Devstral 2 and Mistral Vibe CLI.mistral.ai · 9 Dec 2025