Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
DeepSeek V3 and Gemini 2.5 Flash finish on the same overall score, so this is less about a single winner and more about where the edge shows up. The headline says tie; the benchmark table is where the real choice happens.
Gemini 2.5 Flash's sharpest advantage is in coding, where it averages 42 against 42. The single biggest benchmark swing on the page is MMLU, 88.5% to 50%. DeepSeek V3 does hit back in mathematics, so the answer changes if that is the part of the workload you care about most.
DeepSeek V3 is also the more expensive model on tokens at $0.27 input / $1.10 output per 1M tokens, versus $0.15 input / $0.60 output per 1M tokens for Gemini 2.5 Flash. Gemini 2.5 Flash gives you the larger context window at 1M, compared with 128K for DeepSeek V3.
Treat this as a split decision. DeepSeek V3 makes more sense if mathematics is the priority; Gemini 2.5 Flash is the better fit if reasoning is the priority or you want the cheaper token bill.
Benchmark data for this category is coming soon.
DeepSeek V3
42
Gemini 2.5 Flash
42
Benchmark data for this category is coming soon.
DeepSeek V3
24.9
Gemini 2.5 Flash
46.9
DeepSeek V3
69.6
Gemini 2.5 Flash
48
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
DeepSeek V3
90.2
Gemini 2.5 Flash
49
DeepSeek V3 and Gemini 2.5 Flash are tied on overall score, so the right pick depends on which category matters most for your use case.
DeepSeek V3 has the edge for knowledge tasks in this comparison, averaging 69.6 versus 48. Inside this category, MMLU is the benchmark that creates the most daylight between them.
DeepSeek V3 and Gemini 2.5 Flash are effectively tied for coding here, both landing at 42 on average.
DeepSeek V3 has the edge for math in this comparison, averaging 90.2 versus 49. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
Gemini 2.5 Flash has the edge for reasoning in this comparison, averaging 46.9 versus 24.9. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
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