Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Claude 4.1 Opus is clearly ahead on the aggregate, 69 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude 4.1 Opus's sharpest advantage is in mathematics, where it averages 75.8 against 9.8. The single biggest benchmark swing on the page is AIME 2024, 78 to 9.8. GPT-4.1 nano does hit back in knowledge, 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 200K for Claude 4.1 Opus.
Pick Claude 4.1 Opus if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if knowledge is the priority or you need the larger 1M context window.
Claude 4.1 Opus
64
GPT-4.1 nano
65.2
Claude 4.1 Opus
75.8
GPT-4.1 nano
9.8
Claude 4.1 Opus
83
GPT-4.1 nano
83.2
Claude 4.1 Opus is ahead overall, 69 to 23. The biggest single separator in this matchup is AIME 2024, where the scores are 78 and 9.8.
GPT-4.1 nano has the edge for knowledge tasks in this comparison, averaging 65.2 versus 64. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for math in this comparison, averaging 75.8 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 83. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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