Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Qwen3.5 397B is clearly ahead on the aggregate, 54 to 25. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Qwen3.5 397B's sharpest advantage is in reasoning, where it averages 78.9 against 24.9. The single biggest benchmark swing on the page is SimpleQA, 24.9% to 80%. 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 $0.00 input / $0.00 output per 1M tokens for Qwen3.5 397B. That is roughly Infinityx on output cost alone.
Pick Qwen3.5 397B if you want the stronger benchmark profile. DeepSeek V3 only becomes the better choice if mathematics is the priority.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
DeepSeek V3
42
Qwen3.5 397B
83.6
Benchmark data for this category is coming soon.
DeepSeek V3
24.9
Qwen3.5 397B
78.9
DeepSeek V3
69.6
Qwen3.5 397B
68
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
DeepSeek V3
90.2
Qwen3.5 397B
82
Qwen3.5 397B is ahead overall, 54 to 25. The biggest single separator in this matchup is SimpleQA, where the scores are 24.9% and 80%.
DeepSeek V3 has the edge for knowledge tasks in this comparison, averaging 69.6 versus 68. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Qwen3.5 397B has the edge for coding in this comparison, averaging 83.6 versus 42. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
DeepSeek V3 has the edge for math in this comparison, averaging 90.2 versus 82. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
Qwen3.5 397B has the edge for reasoning in this comparison, averaging 78.9 versus 24.9. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
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