Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Claude 3.5 Sonnet is clearly ahead on the aggregate, 62 to 43. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude 3.5 Sonnet's sharpest advantage is in mathematics, where it averages 66 against 26.4. The single biggest benchmark swing on the page is AIME 2024, 67 to 26.4. GPT-4.1 does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.
GPT-4.1 gives you the larger context window at 1M, compared with 200K for Claude 3.5 Sonnet.
Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. GPT-4.1 only becomes the better choice if knowledge is the priority or you need the larger 1M context window.
Claude 3.5 Sonnet
55.5
GPT-4.1
78.3
Claude 3.5 Sonnet
44
GPT-4.1
54.6
Claude 3.5 Sonnet
66
GPT-4.1
26.4
Claude 3.5 Sonnet
83
GPT-4.1
87.4
Claude 3.5 Sonnet is ahead overall, 62 to 43. The biggest single separator in this matchup is AIME 2024, where the scores are 67 and 26.4.
GPT-4.1 has the edge for knowledge tasks in this comparison, averaging 78.3 versus 55.5. Inside this category, MMLU is the benchmark that creates the most daylight between them.
GPT-4.1 has the edge for coding in this comparison, averaging 54.6 versus 44. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Claude 3.5 Sonnet has the edge for math in this comparison, averaging 66 versus 26.4. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
GPT-4.1 has the edge for instruction following in this comparison, averaging 87.4 versus 83. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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