DeepSeek-Math and Magistral Small don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-Math shipped 433 days before Magistral Small, so benchmark comparisons should account for the intervening progress.

DeepSeek-Math is open weight, while Magistral Small is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek-Math and Magistral Small don't publish scores on any of the same benchmarks.