Mistral Pixtral 24.09 vs xAI Grok 4 Fast — side-by-side specs.
Mistral Pixtral 24.09 | xAI Grok 4 Fast | |
|---|---|---|
| Overview | ||
| Company | Mistral | xAI |
| Release date | Sep 2024 | Sep 2025 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | Pixtral 24.09 shipped 365 days before Grok 4 Fast | |
Pixtral 24.09 and Grok 4 Fast don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Pixtral 24.09 shipped 365 days before Grok 4 Fast, so benchmark comparisons should account for the intervening progress.
Pixtral 24.09 is an open-source / open-weight model; Grok 4 Fast is proprietary.
Direct benchmark comparisons are unavailable — Pixtral 24.09 and Grok 4 Fast don't publish scores on any of the same benchmarks.