DeepSeek V3 Chat and Gemini 1.0 Ultra don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 1.0 Ultra shipped 297 days before DeepSeek V3 Chat, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Chat is open weight, while Gemini 1.0 Ultra is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3 Chat and Gemini 1.0 Ultra don't publish scores on any of the same benchmarks.