DeepSeek-R1-Lite Preview and Mistral Small 4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-R1-Lite Preview shipped 481 days before Mistral Small 4, so benchmark comparisons should account for the intervening progress.

DeepSeek-R1-Lite Preview is open weight, while Mistral Small 4 is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek-R1-Lite Preview and Mistral Small 4 don't publish scores on any of the same benchmarks.