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 48. 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 25.8. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 62 to 40.
Step 3.5 Flash gives you the larger context window at 256K, compared with 32K for Mistral 8x7B.
Pick Step 3.5 Flash if you want the stronger benchmark profile. Mistral 8x7B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Step 3.5 Flash
60.2
Mistral 8x7B
41.1
Step 3.5 Flash
47.1
Mistral 8x7B
25.8
Step 3.5 Flash
66.7
Mistral 8x7B
48.3
Step 3.5 Flash
78.3
Mistral 8x7B
60.3
Step 3.5 Flash
60.8
Mistral 8x7B
48.4
Step 3.5 Flash
87
Mistral 8x7B
78
Step 3.5 Flash
82.8
Mistral 8x7B
72.1
Step 3.5 Flash
84.5
Mistral 8x7B
68.1
Step 3.5 Flash is ahead overall, 66 to 48. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 62 and 40.
Step 3.5 Flash has the edge for knowledge tasks in this comparison, averaging 60.8 versus 48.4. 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 25.8. 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 68.1. 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 60.3. 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 41.1. 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 48.3. 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 78. 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 72.1. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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