Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Claude 3.5 Sonnet is clearly ahead on the aggregate, 62 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 3.5 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 3.5 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 3.5 Sonnet
55.5
o1-pro
79
Claude 3.5 Sonnet
66
o1-pro
86
Claude 3.5 Sonnet is ahead overall, 62 to 33. The biggest single separator in this matchup is AIME 2024, where the scores are 67 and 86.
o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 55.5. 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 66. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
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