benchlm.ai

Claude 3 Haiku vs Claude 4.1 Opus Thinking

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

Quick Verdict

Claude 3 Haiku wins overall with a score of 46 vs 29 (17 point difference).Claude 3 Haiku wins 4 out of 4 categories.

Claude 3 Haiku

CreatorAnthropic
TypeProprietary
Context200K
Score46

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

Knowledge

Claude 3 Haiku

Claude 3 Haiku

54.5

Claude 4.1 Opus Thinking

35.8

56
MMLU
38
56
GPQA
37
54
SuperGPQA
35
52
OpenBookQA
33

Coding

Claude 3 Haiku

Claude 3 Haiku

48

Claude 4.1 Opus Thinking

30

48
HumanEval
30

Mathematics

Claude 3 Haiku

Claude 3 Haiku

55

Claude 4.1 Opus Thinking

37

56
AIME 2023
38
58
AIME 2024
40
57
AIME 2025
39
52
HMMT Feb 2023
34
54
HMMT Feb 2024
36
53
HMMT Feb 2025
35
55
BRUMO 2025
37

Reasoning

Claude 3 Haiku

Claude 3 Haiku

53

Claude 4.1 Opus Thinking

35

54
SimpleQA
36
52
MuSR
34

Frequently Asked Questions

Which is better, Claude 3 Haiku or Claude 4.1 Opus Thinking?

Claude 3 Haiku scores higher overall with 46 vs 29, a difference of 17 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Haiku or Claude 4.1 Opus Thinking?

Claude 3 Haiku leads in knowledge tasks with an average score of 54.5 vs 35.8.

Which is better for coding, Claude 3 Haiku or Claude 4.1 Opus Thinking?

Claude 3 Haiku leads in coding with an average score of 48 vs 30.

Which is better for math, Claude 3 Haiku or Claude 4.1 Opus Thinking?

Claude 3 Haiku leads in math with an average score of 55 vs 37.

Which is better for reasoning, Claude 3 Haiku or Claude 4.1 Opus Thinking?

Claude 3 Haiku leads in reasoning with an average score of 53 vs 35.

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