DeepSeek V3.1 Terminus 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 592 days before DeepSeek V3.1 Terminus, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.1 Terminus is open weight, while Gemini 1.0 Ultra is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3.1 Terminus and Gemini 1.0 Ultra don't publish scores on any of the same benchmarks.