o3 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 67 (1 point difference).o3-pro wins 4 out of 4 categories.

Knowledge

o3-pro

o3

85.3

o3-pro

87.3

86
MMLU
88
87
GPQA
89
85
SuperGPQA
87
83
OpenBookQA
85

Coding

o3-pro

o3

78

o3-pro

80

78
HumanEval
80

Mathematics

o3-pro

o3

87

o3-pro

89

88
AIME 2023
90
90
AIME 2024
92
89
AIME 2025
91
84
HMMT Feb 2023
86
86
HMMT Feb 2024
88
85
HMMT Feb 2025
87
87
BRUMO 2025
89

Reasoning

o3-pro

o3

83

o3-pro

85

84
SimpleQA
86
82
MuSR
84

Frequently Asked Questions

Which is better, o3 or o3-pro?

o3-pro scores higher overall with 68 vs 67, a difference of 1 points across all benchmarks.

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

o3-pro leads in knowledge tasks with an average score of 87.3 vs 85.3.

Which is better for coding, o3 or o3-pro?

o3-pro leads in coding with an average score of 80 vs 78.

Which is better for math, o3 or o3-pro?

o3-pro leads in math with an average score of 89 vs 87.

Which is better for reasoning, o3 or o3-pro?

o3-pro leads in reasoning with an average score of 85 vs 83.