Gemini 3.5 Flash Cyber and Devstral Small don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Devstral Small shipped 426 days before Gemini 3.5 Flash Cyber, so benchmark comparisons should account for the intervening progress.

Gemini 3.5 Flash Cyber is proprietary, while Devstral Small is open weight.

Direct benchmark comparisons are unavailable — Gemini 3.5 Flash Cyber and Devstral Small don't publish scores on any of the same benchmarks.