Devstral Small and Grok 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok 3 shipped 93 days before Devstral Small, so benchmark comparisons should account for the intervening progress.

Devstral Small is open weight, while Grok 3 is proprietary.

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