Mistral Mistral Medium 3.5 vs xAI Grok 4.1 Fast — side-by-side specs.
Mistral Mistral Medium 3.5 | xAI Grok 4.1 Fast | |
|---|---|---|
| Overview | ||
| Company | Mistral | xAI |
| Release date | Apr 30 2026 | Nov 19 2025 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | — | — |
Software engineering SWE-Bench Verified | — | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | Grok 4.1 Fast shipped 162 days before Mistral Medium 3.5 | |
Mistral Medium 3.5 and Grok 4.1 Fast do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok 4.1 Fast shipped 162 days before Mistral Medium 3.5, 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 — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.