Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
o3-mini is clearly ahead on the aggregate, 56 to 43. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
o3-mini's sharpest advantage is in mathematics, where it averages 87.3 against 26.4. The single biggest benchmark swing on the page is AIME 2024, 87.3 to 26.4. GPT-4.1 does hit back in coding, so the answer changes if that is the part of the workload you care about most.
GPT-4.1 is also the more expensive model on tokens at $2.00 input / $8.00 output per 1M tokens, versus $1.10 input / $4.40 output per 1M tokens for o3-mini. o3-mini is the reasoning model in the pair, while GPT-4.1 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. GPT-4.1 gives you the larger context window at 1M, compared with 200K for o3-mini.
Pick o3-mini if you want the stronger benchmark profile. GPT-4.1 only becomes the better choice if coding is the priority or you need the larger 1M context window.
o3-mini
82.1
GPT-4.1
78.3
o3-mini
49.3
GPT-4.1
54.6
o3-mini
87.3
GPT-4.1
26.4
o3-mini
93.9
GPT-4.1
87.4
o3-mini is ahead overall, 56 to 43. The biggest single separator in this matchup is AIME 2024, where the scores are 87.3 and 26.4.
o3-mini has the edge for knowledge tasks in this comparison, averaging 82.1 versus 78.3. Inside this category, GPQA 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 49.3. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
o3-mini has the edge for math in this comparison, averaging 87.3 versus 26.4. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
o3-mini has the edge for instruction following in this comparison, averaging 93.9 versus 87.4. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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