Devstral Small and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Devstral Small shipped 99 days before Grok Code Fast 1, so benchmark comparisons should account for the intervening progress.

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

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