Gemini 3 Pro Deep Think vs o1-preview

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

Quick Verdict

Gemini 3 Pro Deep Think wins overall with a score of 81 vs 71 (10 point difference).Gemini 3 Pro Deep Think wins 4 out of 4 categories.

Knowledge

Gemini 3 Pro Deep Think

Gemini 3 Pro Deep Think

96

o1-preview

89

99
MMLU
92
97
GPQA
90
95
SuperGPQA
88
93
OpenBookQA
86

Coding

Gemini 3 Pro Deep Think

Gemini 3 Pro Deep Think

91

o1-preview

86

91
HumanEval
86

Mathematics

Gemini 3 Pro Deep Think

Gemini 3 Pro Deep Think

97.1

o1-preview

93

99
AIME 2023
94
99
AIME 2024
96
98
AIME 2025
95
95
HMMT Feb 2023
90
97
HMMT Feb 2024
92
96
HMMT Feb 2025
91
96
BRUMO 2025
93

Reasoning

Gemini 3 Pro Deep Think

Gemini 3 Pro Deep Think

94

o1-preview

87

95
SimpleQA
88
93
MuSR
86

Frequently Asked Questions

Which is better, Gemini 3 Pro Deep Think or o1-preview?

Gemini 3 Pro Deep Think scores higher overall with 81 vs 71, a difference of 10 points across all benchmarks.

Which is better for knowledge tasks, Gemini 3 Pro Deep Think or o1-preview?

Gemini 3 Pro Deep Think leads in knowledge tasks with an average score of 96 vs 89.

Which is better for coding, Gemini 3 Pro Deep Think or o1-preview?

Gemini 3 Pro Deep Think leads in coding with an average score of 91 vs 86.

Which is better for math, Gemini 3 Pro Deep Think or o1-preview?

Gemini 3 Pro Deep Think leads in math with an average score of 97.1 vs 93.

Which is better for reasoning, Gemini 3 Pro Deep Think or o1-preview?

Gemini 3 Pro Deep Think leads in reasoning with an average score of 94 vs 87.