benchlm.ai

Claude 3.5 Sonnet vs Gemini 3 Flash

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

Quick Verdict

Gemini 3 Flash wins overall with a score of 58 vs 55 (3 point difference).Gemini 3 Flash wins 4 out of 4 categories.

Claude 3.5 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score55

Gemini 3 Flash

CreatorGoogle
TypeProprietary
Context1M
Score58

Knowledge

Gemini 3 Flash

Claude 3.5 Sonnet

63.5

Gemini 3 Flash

67.8

65
MMLU
70
65
GPQA
69
63
SuperGPQA
67
61
OpenBookQA
65

Coding

Gemini 3 Flash

Claude 3.5 Sonnet

57

Gemini 3 Flash

62

57
HumanEval
62

Mathematics

Gemini 3 Flash

Claude 3.5 Sonnet

64

Gemini 3 Flash

69

65
AIME 2023
70
67
AIME 2024
72
66
AIME 2025
71
61
HMMT Feb 2023
66
63
HMMT Feb 2024
68
62
HMMT Feb 2025
67
64
BRUMO 2025
69

Reasoning

Gemini 3 Flash

Claude 3.5 Sonnet

62

Gemini 3 Flash

66

63
SimpleQA
67
61
MuSR
65

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or Gemini 3 Flash?

Gemini 3 Flash scores higher overall with 58 vs 55, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, Claude 3.5 Sonnet or Gemini 3 Flash?

Gemini 3 Flash leads in knowledge tasks with an average score of 67.8 vs 63.5.

Which is better for coding, Claude 3.5 Sonnet or Gemini 3 Flash?

Gemini 3 Flash leads in coding with an average score of 62 vs 57.

Which is better for math, Claude 3.5 Sonnet or Gemini 3 Flash?

Gemini 3 Flash leads in math with an average score of 69 vs 64.

Which is better for reasoning, Claude 3.5 Sonnet or Gemini 3 Flash?

Gemini 3 Flash leads in reasoning with an average score of 66 vs 62.

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