DeepSeek V3 Chat and Gemini 3.5 Flash Cyber don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V3 Chat shipped 572 days before Gemini 3.5 Flash Cyber, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Chat is open weight, while Gemini 3.5 Flash Cyber is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3 Chat and Gemini 3.5 Flash Cyber don't publish scores on any of the same benchmarks.