GPT-4o mini vs o1-pro

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

GPT-4o mini is clearly ahead on the aggregate, 43 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-4o mini's sharpest advantage is in knowledge, where it averages 82 against 79.

o1-pro is also the more expensive model on tokens at $150.00 input / $600.00 output per 1M tokens, versus $0.15 input / $0.60 output per 1M tokens for GPT-4o mini. That is roughly 1000.0x on output cost alone. o1-pro is the reasoning model in the pair, while GPT-4o mini 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. o1-pro gives you the larger context window at 200K, compared with 128K for GPT-4o mini.

Quick Verdict

Pick GPT-4o mini if you want the stronger benchmark profile. o1-pro only becomes the better choice if you need the larger 200K context window or you want the stronger reasoning-first profile.

Knowledge

GPT-4o mini

GPT-4o mini

82

o1-pro

79

82
MMLU
-
-
GPQA
79

Coding

GPT-4o mini
87.2
HumanEval
-

Mathematics

o1-pro
-
AIME 2024
86

Reasoning

Tie

Instruction Following

Tie

Multilingual

GPT-4o mini
87
MGSM
-

Frequently Asked Questions

Which is better, GPT-4o mini or o1-pro?

GPT-4o mini is ahead overall, 43 to 33.

Which is better for knowledge tasks, GPT-4o mini or o1-pro?

GPT-4o mini has the edge for knowledge tasks in this comparison, averaging 82 versus 79. o1-pro stays close enough that the answer can still flip depending on your workload.

Last updated: March 9, 2026

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