DeepSeek V3-0324 and o3-mini-high don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o3-mini-high shipped 52 days before DeepSeek V3-0324, so benchmark comparisons should account for the intervening progress.

DeepSeek V3-0324 is open weight, while o3-mini-high is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3-0324 and o3-mini-high don't publish scores on any of the same benchmarks.