benchlm.ai

Gemini 3.1 Pro vs GPT-5 mini

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

Quick Verdict

Gemini 3.1 Pro wins overall with a score of 87 vs 68 (19 point difference).Gemini 3.1 Pro wins 4 out of 4 categories.

Gemini 3.1 Pro

CreatorGoogle
TypeProprietary
Context1M
Score87

GPT-5 mini

CreatorOpenAI
TypeProprietary
Context128K
Score68

Knowledge

Gemini 3.1 Pro

Gemini 3.1 Pro

96

GPT-5 mini

85

99
MMLU
88
97
GPQA
86
95
SuperGPQA
84
93
OpenBookQA
82

Coding

Gemini 3.1 Pro

Gemini 3.1 Pro

91

GPT-5 mini

80

91
HumanEval
80

Mathematics

Gemini 3.1 Pro

Gemini 3.1 Pro

97.1

GPT-5 mini

89

99
AIME 2023
90
99
AIME 2024
92
98
AIME 2025
91
95
HMMT Feb 2023
86
97
HMMT Feb 2024
88
96
HMMT Feb 2025
87
96
BRUMO 2025
89

Reasoning

Gemini 3.1 Pro

Gemini 3.1 Pro

94

GPT-5 mini

83

95
SimpleQA
84
93
MuSR
82

Frequently Asked Questions

Which is better, Gemini 3.1 Pro or GPT-5 mini?

Gemini 3.1 Pro scores higher overall with 87 vs 68, a difference of 19 points across all benchmarks.

Which is better for knowledge tasks, Gemini 3.1 Pro or GPT-5 mini?

Gemini 3.1 Pro leads in knowledge tasks with an average score of 96 vs 85.

Which is better for coding, Gemini 3.1 Pro or GPT-5 mini?

Gemini 3.1 Pro leads in coding with an average score of 91 vs 80.

Which is better for math, Gemini 3.1 Pro or GPT-5 mini?

Gemini 3.1 Pro leads in math with an average score of 97.1 vs 89.

Which is better for reasoning, Gemini 3.1 Pro or GPT-5 mini?

Gemini 3.1 Pro leads in reasoning with an average score of 94 vs 83.

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