DeepSeek V3.2 Exp and GPT-5 mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-5 mini shipped 53 days before DeepSeek V3.2 Exp, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.2 Exp is open weight, while GPT-5 mini is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3.2 Exp and GPT-5 mini don't publish scores on any of the same benchmarks.