GPT-4o vs o3-pro

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

Quick Verdict

o3-pro wins overall with a score of 68 vs 56 (12 point difference).o3-pro wins 4 out of 4 categories.

Knowledge

o3-pro

GPT-4o

64.5

o3-pro

87.3

66
MMLU
88
66
GPQA
89
64
SuperGPQA
87
62
OpenBookQA
85

Coding

o3-pro

GPT-4o

58

o3-pro

80

58
HumanEval
80

Mathematics

o3-pro

GPT-4o

65

o3-pro

89

66
AIME 2023
90
68
AIME 2024
92
67
AIME 2025
91
62
HMMT Feb 2023
86
64
HMMT Feb 2024
88
63
HMMT Feb 2025
87
65
BRUMO 2025
89

Reasoning

o3-pro

GPT-4o

63

o3-pro

85

64
SimpleQA
86
62
MuSR
84

Frequently Asked Questions

Which is better, GPT-4o or o3-pro?

o3-pro scores higher overall with 68 vs 56, a difference of 12 points across all benchmarks.

Which is better for knowledge tasks, GPT-4o or o3-pro?

o3-pro leads in knowledge tasks with an average score of 87.3 vs 64.5.

Which is better for coding, GPT-4o or o3-pro?

o3-pro leads in coding with an average score of 80 vs 58.

Which is better for math, GPT-4o or o3-pro?

o3-pro leads in math with an average score of 89 vs 65.

Which is better for reasoning, GPT-4o or o3-pro?

o3-pro leads in reasoning with an average score of 85 vs 63.