DeepSeek Chat (R1-based) and Mistral Medium don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Medium shipped 416 days before DeepSeek Chat (R1-based), so benchmark comparisons should account for the intervening progress.

DeepSeek Chat (R1-based) is open weight, while Mistral Medium is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek Chat (R1-based) and Mistral Medium don't publish scores on any of the same benchmarks.