benchlm.ai

Claude Haiku 4.5 vs Grok 3 [Beta]

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 33 (24 point difference).Claude Haiku 4.5 wins 4 out of 4 categories.

Claude Haiku 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score57

Grok 3 [Beta]

CreatorxAI
TypeProprietary
Context128K
Score33

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

Grok 3 [Beta]

39.8

68
MMLU
42
67
GPQA
41
65
SuperGPQA
39
63
OpenBookQA
37

Coding

Claude Haiku 4.5

Claude Haiku 4.5

60

Grok 3 [Beta]

34

60
HumanEval
34

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

Grok 3 [Beta]

41

68
AIME 2023
42
70
AIME 2024
44
69
AIME 2025
43
64
HMMT Feb 2023
38
66
HMMT Feb 2024
40
65
HMMT Feb 2025
39
67
BRUMO 2025
41

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

Grok 3 [Beta]

39

65
SimpleQA
40
63
MuSR
38

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Grok 3 [Beta]?

Claude Haiku 4.5 scores higher overall with 57 vs 33, a difference of 24 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or Grok 3 [Beta]?

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 39.8.

Which is better for coding, Claude Haiku 4.5 or Grok 3 [Beta]?

Claude Haiku 4.5 leads in coding with an average score of 60 vs 34.

Which is better for math, Claude Haiku 4.5 or Grok 3 [Beta]?

Claude Haiku 4.5 leads in math with an average score of 67 vs 41.

Which is better for reasoning, Claude Haiku 4.5 or Grok 3 [Beta]?

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 39.

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