Mistral Small 3 and o1-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small 3 shipped 77 days before o1-pro, so benchmark comparisons should account for the intervening progress.

Mistral Small 3 is open weight, while o1-pro is proprietary.

Direct benchmark comparisons are unavailable — Mistral Small 3 and o1-pro don't publish scores on any of the same benchmarks.