Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Step 3.5 Flash is clearly ahead on the aggregate, 66 to 40. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Step 3.5 Flash's sharpest advantage is in coding, where it averages 47.1 against 14.1. The single biggest benchmark swing on the page is MuSR, 82 to 44.
Step 3.5 Flash gives you the larger context window at 256K, compared with 32K for Llama 4 Behemoth.
Pick Step 3.5 Flash if you want the stronger benchmark profile. Llama 4 Behemoth only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Step 3.5 Flash
60.2
Llama 4 Behemoth
34.6
Step 3.5 Flash
47.1
Llama 4 Behemoth
14.1
Step 3.5 Flash
66.7
Llama 4 Behemoth
55.1
Step 3.5 Flash
78.3
Llama 4 Behemoth
47.1
Step 3.5 Flash
60.8
Llama 4 Behemoth
36.7
Step 3.5 Flash
87
Llama 4 Behemoth
68
Step 3.5 Flash
82.8
Llama 4 Behemoth
62.8
Step 3.5 Flash
84.5
Llama 4 Behemoth
52.9
Step 3.5 Flash is ahead overall, 66 to 40. The biggest single separator in this matchup is MuSR, where the scores are 82 and 44.
Step 3.5 Flash has the edge for knowledge tasks in this comparison, averaging 60.8 versus 36.7. Inside this category, MMLU 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 14.1. Inside this category, HumanEval 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 52.9. Inside this category, AIME 2023 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 47.1. Inside this category, MuSR 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 34.6. Inside this category, Terminal-Bench 2.0 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 55.1. Inside this category, OfficeQA 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 68. 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 62.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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