Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Grok 4 is clearly ahead on the aggregate, 74 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Grok 4's sharpest advantage is in mathematics, where it averages 86.1 against 9.8. The single biggest benchmark swing on the page is AIME 2024, 89 to 9.8. GPT-4.1 nano does hit back in instruction following, so the answer changes if that is the part of the workload you care about most.
GPT-4.1 nano gives you the larger context window at 1M, compared with 128K for Grok 4.
Pick Grok 4 if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if instruction following is the priority or you need the larger 1M context window.
Grok 4
72
GPT-4.1 nano
65.2
Grok 4
86.1
GPT-4.1 nano
9.8
Grok 4
82
GPT-4.1 nano
83.2
Grok 4 is ahead overall, 74 to 23. The biggest single separator in this matchup is AIME 2024, where the scores are 89 and 9.8.
Grok 4 has the edge for knowledge tasks in this comparison, averaging 72 versus 65.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Grok 4 has the edge for math in this comparison, averaging 86.1 versus 9.8. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
GPT-4.1 nano has the edge for instruction following in this comparison, averaging 83.2 versus 82. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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