Gemini 2.5 Pro 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 65 (3 point difference).o3-pro wins 4 out of 4 categories.

Knowledge

o3-pro

Gemini 2.5 Pro

81.5

o3-pro

87.3

83
MMLU
88
83
GPQA
89
81
SuperGPQA
87
79
OpenBookQA
85

Coding

o3-pro

Gemini 2.5 Pro

75

o3-pro

80

75
HumanEval
80

Mathematics

o3-pro

Gemini 2.5 Pro

83

o3-pro

89

84
AIME 2023
90
86
AIME 2024
92
85
AIME 2025
91
80
HMMT Feb 2023
86
82
HMMT Feb 2024
88
81
HMMT Feb 2025
87
83
BRUMO 2025
89

Reasoning

o3-pro

Gemini 2.5 Pro

80

o3-pro

85

81
SimpleQA
86
79
MuSR
84

Frequently Asked Questions

Which is better, Gemini 2.5 Pro or o3-pro?

o3-pro scores higher overall with 68 vs 65, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Pro or o3-pro?

o3-pro leads in knowledge tasks with an average score of 87.3 vs 81.5.

Which is better for coding, Gemini 2.5 Pro or o3-pro?

o3-pro leads in coding with an average score of 80 vs 75.

Which is better for math, Gemini 2.5 Pro or o3-pro?

o3-pro leads in math with an average score of 89 vs 83.

Which is better for reasoning, Gemini 2.5 Pro or o3-pro?

o3-pro leads in reasoning with an average score of 85 vs 80.