Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Kimi K2.5 is clearly ahead on the aggregate, 39 to 25. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Kimi K2.5's sharpest advantage is in reasoning, where it averages 72.9 against 24.9. The single biggest benchmark swing on the page is SimpleQA, 24.9% to 74%. DeepSeek V3 does hit back in mathematics, so the answer changes if that is the part of the workload you care about most.
Kimi K2.5 is also the more expensive model on tokens at $0.50 input / $2.80 output per 1M tokens, versus $0.27 input / $1.10 output per 1M tokens for DeepSeek V3. That is roughly 2.5x on output cost alone.
Pick Kimi K2.5 if you want the stronger benchmark profile. DeepSeek V3 only becomes the better choice if mathematics is the priority or you want the cheaper token bill.
Benchmark data for this category is coming soon.
DeepSeek V3
42
Kimi K2.5
69
Benchmark data for this category is coming soon.
DeepSeek V3
24.9
Kimi K2.5
72.9
DeepSeek V3
69.6
Kimi K2.5
75
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
DeepSeek V3
90.2
Kimi K2.5
76
Kimi K2.5 is ahead overall, 39 to 25. The biggest single separator in this matchup is SimpleQA, where the scores are 24.9% and 74%.
Kimi K2.5 has the edge for knowledge tasks in this comparison, averaging 75 versus 69.6. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Kimi K2.5 has the edge for coding in this comparison, averaging 69 versus 42. DeepSeek V3 stays close enough that the answer can still flip depending on your workload.
DeepSeek V3 has the edge for math in this comparison, averaging 90.2 versus 76. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
Kimi K2.5 has the edge for reasoning in this comparison, averaging 72.9 versus 24.9. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
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