benchlm.ai

Gemini 3.1 Pro vs GPT-5.1

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 76 (11 point difference).Gemini 3.1 Pro wins 3 out of 4 categories.

Gemini 3.1 Pro

CreatorGoogle
TypeProprietary
Context1M
Score87

GPT-5.1

CreatorOpenAI
TypeProprietary
Context400K
Score76

Knowledge

Gemini 3.1 Pro

Gemini 3.1 Pro

96

GPT-5.1

94

99
MMLU
97
97
GPQA
95
95
SuperGPQA
93
93
OpenBookQA
91

Coding

Gemini 3.1 Pro

Gemini 3.1 Pro

91

GPT-5.1

89

91
HumanEval
89

Mathematics

Tie

Gemini 3.1 Pro

97.1

GPT-5.1

97.1

99
AIME 2023
99
99
AIME 2024
99
98
AIME 2025
98
95
HMMT Feb 2023
95
97
HMMT Feb 2024
97
96
HMMT Feb 2025
96
96
BRUMO 2025
96

Reasoning

Gemini 3.1 Pro

Gemini 3.1 Pro

94

GPT-5.1

92

95
SimpleQA
93
93
MuSR
91

Frequently Asked Questions

Which is better, Gemini 3.1 Pro or GPT-5.1?

Gemini 3.1 Pro scores higher overall with 87 vs 76, a difference of 11 points across all benchmarks.

Which is better for knowledge tasks, Gemini 3.1 Pro or GPT-5.1?

Gemini 3.1 Pro leads in knowledge tasks with an average score of 96 vs 94.

Which is better for coding, Gemini 3.1 Pro or GPT-5.1?

Gemini 3.1 Pro leads in coding with an average score of 91 vs 89.

Which is better for math, Gemini 3.1 Pro or GPT-5.1?

Gemini 3.1 Pro and GPT-5.1 are tied for math with average scores of 97.1.

Which is better for reasoning, Gemini 3.1 Pro or GPT-5.1?

Gemini 3.1 Pro leads in reasoning with an average score of 94 vs 92.

Related Comparisons

Gemini 3.1 Pro vs GPT-5.4Gemini 3.1 Pro vs Claude Opus 4.6Gemini 3.1 Pro vs GPT-5.3 CodexGemini 3.1 Pro vs Grok 4.1Gemini 3.1 Pro vs GPT-5.2Gemini 3.1 Pro vs GPT-5.2-Codex