benchlm.ai

Claude 3 Haiku vs GPT-5 (high)

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

Quick Verdict

GPT-5 (high) wins overall with a score of 72 vs 46 (26 point difference).GPT-5 (high) wins 4 out of 4 categories.

Claude 3 Haiku

CreatorAnthropic
TypeProprietary
Context200K
Score46

GPT-5 (high)

CreatorOpenAI
TypeProprietary
Context128K
Score72

Knowledge

GPT-5 (high)

Claude 3 Haiku

54.5

GPT-5 (high)

90

56
MMLU
93
56
GPQA
91
54
SuperGPQA
89
52
OpenBookQA
87

Coding

GPT-5 (high)

Claude 3 Haiku

48

GPT-5 (high)

85

48
HumanEval
85

Mathematics

GPT-5 (high)

Claude 3 Haiku

55

GPT-5 (high)

94

56
AIME 2023
95
58
AIME 2024
97
57
AIME 2025
96
52
HMMT Feb 2023
91
54
HMMT Feb 2024
93
53
HMMT Feb 2025
92
55
BRUMO 2025
94

Reasoning

GPT-5 (high)

Claude 3 Haiku

53

GPT-5 (high)

88

54
SimpleQA
89
52
MuSR
87

Frequently Asked Questions

Which is better, Claude 3 Haiku or GPT-5 (high)?

GPT-5 (high) scores higher overall with 72 vs 46, a difference of 26 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Haiku or GPT-5 (high)?

GPT-5 (high) leads in knowledge tasks with an average score of 90 vs 54.5.

Which is better for coding, Claude 3 Haiku or GPT-5 (high)?

GPT-5 (high) leads in coding with an average score of 85 vs 48.

Which is better for math, Claude 3 Haiku or GPT-5 (high)?

GPT-5 (high) leads in math with an average score of 94 vs 55.

Which is better for reasoning, Claude 3 Haiku or GPT-5 (high)?

GPT-5 (high) leads in reasoning with an average score of 88 vs 53.

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