benchlm.ai

Claude Sonnet 4.5 vs Gemini 3.1 Flash-Lite

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

Quick Verdict

Claude Sonnet 4.5 wins overall with a score of 74 vs 53 (21 point difference).Claude Sonnet 4.5 wins 4 out of 4 categories.

Claude Sonnet 4.5

CreatorAnthropic
TypeProprietary
Context1M
Score74

Gemini 3.1 Flash-Lite

CreatorGoogle
TypeProprietary
Context1M
Score53

Knowledge

Claude Sonnet 4.5

Claude Sonnet 4.5

92

Gemini 3.1 Flash-Lite

60.8

95
MMLU
63
93
GPQA
62
91
SuperGPQA
60
89
OpenBookQA
58

Coding

Claude Sonnet 4.5

Claude Sonnet 4.5

87

Gemini 3.1 Flash-Lite

55

87
HumanEval
55

Mathematics

Claude Sonnet 4.5

Claude Sonnet 4.5

96

Gemini 3.1 Flash-Lite

62

97
AIME 2023
63
99
AIME 2024
65
98
AIME 2025
64
93
HMMT Feb 2023
59
95
HMMT Feb 2024
61
94
HMMT Feb 2025
60
96
BRUMO 2025
62

Reasoning

Claude Sonnet 4.5

Claude Sonnet 4.5

90

Gemini 3.1 Flash-Lite

59

91
SimpleQA
60
89
MuSR
58

Frequently Asked Questions

Which is better, Claude Sonnet 4.5 or Gemini 3.1 Flash-Lite?

Claude Sonnet 4.5 scores higher overall with 74 vs 53, a difference of 21 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.5 or Gemini 3.1 Flash-Lite?

Claude Sonnet 4.5 leads in knowledge tasks with an average score of 92 vs 60.8.

Which is better for coding, Claude Sonnet 4.5 or Gemini 3.1 Flash-Lite?

Claude Sonnet 4.5 leads in coding with an average score of 87 vs 55.

Which is better for math, Claude Sonnet 4.5 or Gemini 3.1 Flash-Lite?

Claude Sonnet 4.5 leads in math with an average score of 96 vs 62.

Which is better for reasoning, Claude Sonnet 4.5 or Gemini 3.1 Flash-Lite?

Claude Sonnet 4.5 leads in reasoning with an average score of 90 vs 59.

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