DeepSeek V3 Base and Grok 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V3 Base shipped 78 days before Grok 3, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Base is open weight, while Grok 3 is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3 Base and Grok 3 don't publish scores on any of the same benchmarks.