Gemini 3.1 Flash and Mathstral 7B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mathstral 7B shipped 590 days before Gemini 3.1 Flash, so benchmark comparisons should account for the intervening progress.

Gemini 3.1 Flash is proprietary, while Mathstral 7B is open weight.

Direct benchmark comparisons are unavailable — Gemini 3.1 Flash and Mathstral 7B don't publish scores on any of the same benchmarks.