Mistral Small 3 and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small 3 shipped 239 days before Grok Code Fast 1, so benchmark comparisons should account for the intervening progress.

Mistral Small 3 is open weight, while Grok Code Fast 1 is proprietary.

Direct benchmark comparisons are unavailable — Mistral Small 3 and Grok Code Fast 1 don't publish scores on any of the same benchmarks.