Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Claude 4 Sonnet is clearly ahead on the aggregate, 67 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
o1-pro is the reasoning model in the pair, while Claude 4 Sonnet 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.
Pick Claude 4 Sonnet if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority or you want the stronger reasoning-first profile.
Claude 4 Sonnet
62.2
o1-pro
79
Claude 4 Sonnet
73.1
o1-pro
86
Claude 4 Sonnet is ahead overall, 67 to 33. The biggest single separator in this matchup is AIME 2024, where the scores are 75 and 86.
o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 62.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.
o1-pro has the edge for math in this comparison, averaging 86 versus 73.1. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
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