Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.4 mini
71
o1-pro
29
Pick GPT-5.4 mini if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority.
Knowledge
+21.6 difference
GPT-5.4 mini
o1-pro
$0.75 / $4.5
$150 / $600
201 t/s
N/A
3.85s
N/A
400K
200K
Pick GPT-5.4 mini if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority.
GPT-5.4 mini is clearly ahead on the provisional aggregate, 71 to 29. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
o1-pro is also the more expensive model on tokens at $150.00 input / $600.00 output per 1M tokens, versus $0.75 input / $4.50 output per 1M tokens for GPT-5.4 mini. That is roughly 133.3x on output cost alone. GPT-5.4 mini gives you the larger context window at 400K, compared with 200K for o1-pro.
GPT-5.4 mini is ahead on BenchLM's provisional leaderboard, 71 to 29. The biggest single separator in this matchup is GPQA, where the scores are 88% and 79%.
o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 57.4. Inside this category, GPQA is the benchmark that creates the most daylight between them.
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