Gemini 2.5 Pro vs GPT-5.1

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

Quick Verdict

GPT-5.1 wins overall with a score of 76 vs 65 (11 point difference).GPT-5.1 wins 4 out of 4 categories.

Knowledge

GPT-5.1

Gemini 2.5 Pro

81.5

GPT-5.1

94

83
MMLU
97
83
GPQA
95
81
SuperGPQA
93
79
OpenBookQA
91

Coding

GPT-5.1

Gemini 2.5 Pro

75

GPT-5.1

89

75
HumanEval
89

Mathematics

GPT-5.1

Gemini 2.5 Pro

83

GPT-5.1

97.1

84
AIME 2023
99
86
AIME 2024
99
85
AIME 2025
98
80
HMMT Feb 2023
95
82
HMMT Feb 2024
97
81
HMMT Feb 2025
96
83
BRUMO 2025
96

Reasoning

GPT-5.1

Gemini 2.5 Pro

80

GPT-5.1

92

81
SimpleQA
93
79
MuSR
91

Frequently Asked Questions

Which is better, Gemini 2.5 Pro or GPT-5.1?

GPT-5.1 scores higher overall with 76 vs 65, a difference of 11 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Pro or GPT-5.1?

GPT-5.1 leads in knowledge tasks with an average score of 94 vs 81.5.

Which is better for coding, Gemini 2.5 Pro or GPT-5.1?

GPT-5.1 leads in coding with an average score of 89 vs 75.

Which is better for math, Gemini 2.5 Pro or GPT-5.1?

GPT-5.1 leads in math with an average score of 97.1 vs 83.

Which is better for reasoning, Gemini 2.5 Pro or GPT-5.1?

GPT-5.1 leads in reasoning with an average score of 92 vs 80.