Mistral Devstral 2 (123B) | xAI Grok 4.20 Beta | |
|---|---|---|
| Overview | ||
| Company | Mistral | xAI |
| Release date | Dec 9 2025 | Feb 17 2026 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | Devstral 2 (123B) shipped 70 days before Grok 4.20 Beta | |
Devstral 2 (123B) and Grok 4.20 Beta don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Devstral 2 (123B) shipped 70 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.
Devstral 2 (123B) is an open-source / open-weight model; Grok 4.20 Beta is proprietary.
Direct benchmark comparisons are unavailable — Devstral 2 (123B) and Grok 4.20 Beta don't publish scores on any of the same benchmarks.