benchlm.ai

Claude Sonnet 4.5 vs Gemini 3.1 Pro

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 74 (13 point difference).Gemini 3.1 Pro wins 4 out of 4 categories.

Claude Sonnet 4.5

CreatorAnthropic
TypeProprietary
Context1M
Score74

Gemini 3.1 Pro

CreatorGoogle
TypeProprietary
Context1M
Score87

Knowledge

Gemini 3.1 Pro

Claude Sonnet 4.5

92

Gemini 3.1 Pro

96

95
MMLU
99
93
GPQA
97
91
SuperGPQA
95
89
OpenBookQA
93

Coding

Gemini 3.1 Pro

Claude Sonnet 4.5

87

Gemini 3.1 Pro

91

87
HumanEval
91

Mathematics

Gemini 3.1 Pro

Claude Sonnet 4.5

96

Gemini 3.1 Pro

97.1

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

Reasoning

Gemini 3.1 Pro

Claude Sonnet 4.5

90

Gemini 3.1 Pro

94

91
SimpleQA
95
89
MuSR
93

Frequently Asked Questions

Which is better, Claude Sonnet 4.5 or Gemini 3.1 Pro?

Gemini 3.1 Pro scores higher overall with 87 vs 74, a difference of 13 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.5 or Gemini 3.1 Pro?

Gemini 3.1 Pro leads in knowledge tasks with an average score of 96 vs 92.

Which is better for coding, Claude Sonnet 4.5 or Gemini 3.1 Pro?

Gemini 3.1 Pro leads in coding with an average score of 91 vs 87.

Which is better for math, Claude Sonnet 4.5 or Gemini 3.1 Pro?

Gemini 3.1 Pro leads in math with an average score of 97.1 vs 96.

Which is better for reasoning, Claude Sonnet 4.5 or Gemini 3.1 Pro?

Gemini 3.1 Pro leads in reasoning with an average score of 94 vs 90.

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