Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Step 3.5 Flash has the cleaner overall profile here, landing at 66 versus 64. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
Step 3.5 Flash's sharpest advantage is in coding, where it averages 47.1 against 43.2. The single biggest benchmark swing on the page is LiveCodeBench, 45 to 39.
Step 3.5 Flash gives you the larger context window at 256K, compared with 128K for DeepSeek V3.2.
Pick Step 3.5 Flash if you want the stronger benchmark profile. DeepSeek V3.2 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Step 3.5 Flash
60.2
DeepSeek V3.2
58.8
Step 3.5 Flash
47.1
DeepSeek V3.2
43.2
Step 3.5 Flash
66.7
DeepSeek V3.2
66
Step 3.5 Flash
78.3
DeepSeek V3.2
75.3
Step 3.5 Flash
60.8
DeepSeek V3.2
60
Step 3.5 Flash
87
DeepSeek V3.2
85
Step 3.5 Flash
82.8
DeepSeek V3.2
82.1
Step 3.5 Flash
84.5
DeepSeek V3.2
82.1
Step 3.5 Flash is ahead overall, 66 to 64. The biggest single separator in this matchup is LiveCodeBench, where the scores are 45 and 39.
Step 3.5 Flash has the edge for knowledge tasks in this comparison, averaging 60.8 versus 60. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for coding in this comparison, averaging 47.1 versus 43.2. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for math in this comparison, averaging 84.5 versus 82.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for reasoning in this comparison, averaging 78.3 versus 75.3. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for agentic tasks in this comparison, averaging 60.2 versus 58.8. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for multimodal and grounded tasks in this comparison, averaging 66.7 versus 66. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for instruction following in this comparison, averaging 87 versus 85. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Step 3.5 Flash has the edge for multilingual tasks in this comparison, averaging 82.8 versus 82.1. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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