Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
GPT-5.4 Pro is clearly ahead on the aggregate, 94 to 51. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.4 Pro's sharpest advantage is in coding, where it averages 89 against 41. The single biggest benchmark swing on the page is SWE-bench Verified, 86 to 41.
GPT-5.4 Pro is also the more expensive model on tokens at $30.00 input / $180.00 output per 1M tokens, versus $15.00 input / $60.00 output per 1M tokens for o1. That is roughly 3.0x on output cost alone. GPT-5.4 Pro gives you the larger context window at 1.05M, compared with 200K for o1.
Pick GPT-5.4 Pro if you want the stronger benchmark profile. o1 only becomes the better choice if you want the cheaper token bill.
GPT-5.4 Pro
88.8
o1
83.8
GPT-5.4 Pro
89
o1
41
GPT-5.4 Pro
98
o1
74.3
GPT-5.4 Pro
97
o1
92.2
GPT-5.4 Pro is ahead overall, 94 to 51. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 86 and 41.
GPT-5.4 Pro has the edge for knowledge tasks in this comparison, averaging 88.8 versus 83.8. Inside this category, GPQA is the benchmark that creates the most daylight between them.
GPT-5.4 Pro has the edge for coding in this comparison, averaging 89 versus 41. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
GPT-5.4 Pro has the edge for math in this comparison, averaging 98 versus 74.3. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
GPT-5.4 Pro has the edge for instruction following in this comparison, averaging 97 versus 92.2. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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