DeepSeek V3 Chat and Kimi Chat don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi Chat shipped 427 days before DeepSeek V3 Chat, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Chat is open weight, while Kimi Chat is proprietary.

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