Gemini 1.5 Pro vs o3

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

Quick Verdict

o3 wins overall with a score of 67 vs 54 (13 point difference).o3 wins 4 out of 4 categories.

Knowledge

o3

Gemini 1.5 Pro

62.5

o3

85.3

64
MMLU
86
64
GPQA
87
62
SuperGPQA
85
60
OpenBookQA
83

Coding

o3

Gemini 1.5 Pro

56

o3

78

56
HumanEval
78

Mathematics

o3

Gemini 1.5 Pro

63

o3

87

64
AIME 2023
88
66
AIME 2024
90
65
AIME 2025
89
60
HMMT Feb 2023
84
62
HMMT Feb 2024
86
61
HMMT Feb 2025
85
63
BRUMO 2025
87

Reasoning

o3

Gemini 1.5 Pro

61

o3

83

62
SimpleQA
84
60
MuSR
82

Frequently Asked Questions

Which is better, Gemini 1.5 Pro or o3?

o3 scores higher overall with 67 vs 54, a difference of 13 points across all benchmarks.

Which is better for knowledge tasks, Gemini 1.5 Pro or o3?

o3 leads in knowledge tasks with an average score of 85.3 vs 62.5.

Which is better for coding, Gemini 1.5 Pro or o3?

o3 leads in coding with an average score of 78 vs 56.

Which is better for math, Gemini 1.5 Pro or o3?

o3 leads in math with an average score of 87 vs 63.

Which is better for reasoning, Gemini 1.5 Pro or o3?

o3 leads in reasoning with an average score of 83 vs 61.