Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Grok 4.1 Fast is clearly ahead on the aggregate, 76 to 31. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Grok 4.1 Fast's sharpest advantage is in multimodal & grounded, where it averages 87.4 against 30.4. The single biggest benchmark swing on the page is HumanEval, 86 to 16.
Ministral 3 3B (Reasoning) is the reasoning model in the pair, while Grok 4.1 Fast is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Grok 4.1 Fast gives you the larger context window at 1M, compared with 128K for Ministral 3 3B (Reasoning).
Pick Grok 4.1 Fast if you want the stronger benchmark profile. Ministral 3 3B (Reasoning) only becomes the better choice if you want the stronger reasoning-first profile.
Grok 4.1 Fast
71
Ministral 3 3B (Reasoning)
34
Grok 4.1 Fast
59.5
Ministral 3 3B (Reasoning)
7.2
Grok 4.1 Fast
87.4
Ministral 3 3B (Reasoning)
30.4
Grok 4.1 Fast
88.3
Ministral 3 3B (Reasoning)
35.3
Grok 4.1 Fast
69.2
Ministral 3 3B (Reasoning)
25.2
Grok 4.1 Fast
90
Ministral 3 3B (Reasoning)
68
Grok 4.1 Fast
84.8
Ministral 3 3B (Reasoning)
59.7
Grok 4.1 Fast
92.3
Ministral 3 3B (Reasoning)
40.9
Grok 4.1 Fast is ahead overall, 76 to 31. The biggest single separator in this matchup is HumanEval, where the scores are 86 and 16.
Grok 4.1 Fast has the edge for knowledge tasks in this comparison, averaging 69.2 versus 25.2. Inside this category, MMLU is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for coding in this comparison, averaging 59.5 versus 7.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for math in this comparison, averaging 92.3 versus 40.9. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for reasoning in this comparison, averaging 88.3 versus 35.3. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for agentic tasks in this comparison, averaging 71 versus 34. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for multimodal and grounded tasks in this comparison, averaging 87.4 versus 30.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for instruction following in this comparison, averaging 90 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Grok 4.1 Fast has the edge for multilingual tasks in this comparison, averaging 84.8 versus 59.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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