benchlm.ai

Claude Haiku 4.5 vs Gemini 2.5 Flash

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

Quick Verdict

Claude Haiku 4.5 wins overall with a score of 57 vs 41 (16 point difference).Claude Haiku 4.5 wins 4 out of 4 categories.

Claude Haiku 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score57

Gemini 2.5 Flash

CreatorGoogle
TypeProprietary
Context1M
Score41

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

Gemini 2.5 Flash

47.8

68
MMLU
50
67
GPQA
49
65
SuperGPQA
47
63
OpenBookQA
45

Coding

Claude Haiku 4.5

Claude Haiku 4.5

60

Gemini 2.5 Flash

42

60
HumanEval
42

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

Gemini 2.5 Flash

49

68
AIME 2023
50
70
AIME 2024
52
69
AIME 2025
51
64
HMMT Feb 2023
46
66
HMMT Feb 2024
48
65
HMMT Feb 2025
47
67
BRUMO 2025
49

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

Gemini 2.5 Flash

47

65
SimpleQA
48
63
MuSR
46

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Gemini 2.5 Flash?

Claude Haiku 4.5 scores higher overall with 57 vs 41, a difference of 16 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or Gemini 2.5 Flash?

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 47.8.

Which is better for coding, Claude Haiku 4.5 or Gemini 2.5 Flash?

Claude Haiku 4.5 leads in coding with an average score of 60 vs 42.

Which is better for math, Claude Haiku 4.5 or Gemini 2.5 Flash?

Claude Haiku 4.5 leads in math with an average score of 67 vs 49.

Which is better for reasoning, Claude Haiku 4.5 or Gemini 2.5 Flash?

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 47.

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