benchlm.ai

Claude 3 Haiku vs Claude 4 Sonnet

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

Quick Verdict

Claude 4 Sonnet wins overall with a score of 59 vs 46 (13 point difference).Claude 4 Sonnet wins 4 out of 4 categories.

Claude 3 Haiku

CreatorAnthropic
TypeProprietary
Context200K
Score46

Claude 4 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score59

Knowledge

Claude 4 Sonnet

Claude 3 Haiku

54.5

Claude 4 Sonnet

71.5

56
MMLU
73
56
GPQA
73
54
SuperGPQA
71
52
OpenBookQA
69

Coding

Claude 4 Sonnet

Claude 3 Haiku

48

Claude 4 Sonnet

65

48
HumanEval
65

Mathematics

Claude 4 Sonnet

Claude 3 Haiku

55

Claude 4 Sonnet

72

56
AIME 2023
73
58
AIME 2024
75
57
AIME 2025
74
52
HMMT Feb 2023
69
54
HMMT Feb 2024
71
53
HMMT Feb 2025
70
55
BRUMO 2025
72

Reasoning

Claude 4 Sonnet

Claude 3 Haiku

53

Claude 4 Sonnet

70

54
SimpleQA
71
52
MuSR
69

Frequently Asked Questions

Which is better, Claude 3 Haiku or Claude 4 Sonnet?

Claude 4 Sonnet scores higher overall with 59 vs 46, a difference of 13 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Haiku or Claude 4 Sonnet?

Claude 4 Sonnet leads in knowledge tasks with an average score of 71.5 vs 54.5.

Which is better for coding, Claude 3 Haiku or Claude 4 Sonnet?

Claude 4 Sonnet leads in coding with an average score of 65 vs 48.

Which is better for math, Claude 3 Haiku or Claude 4 Sonnet?

Claude 4 Sonnet leads in math with an average score of 72 vs 55.

Which is better for reasoning, Claude 3 Haiku or Claude 4 Sonnet?

Claude 4 Sonnet leads in reasoning with an average score of 70 vs 53.

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