benchlm.ai

Claude Haiku 4.5 vs Grok Code Fast 1

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 54 (3 point difference).Claude Haiku 4.5 wins 3 out of 4 categories.

Claude Haiku 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score57

Grok Code Fast 1

CreatorxAI
TypeProprietary
Context256K
Score54

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

Grok Code Fast 1

61.8

68
MMLU
64
67
GPQA
63
65
SuperGPQA
61
63
OpenBookQA
59

Coding

Tie

Claude Haiku 4.5

60

Grok Code Fast 1

60

60
HumanEval
60

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

Grok Code Fast 1

63

68
AIME 2023
64
70
AIME 2024
66
69
AIME 2025
65
64
HMMT Feb 2023
60
66
HMMT Feb 2024
62
65
HMMT Feb 2025
61
67
BRUMO 2025
63

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

Grok Code Fast 1

60

65
SimpleQA
61
63
MuSR
59

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Grok Code Fast 1?

Claude Haiku 4.5 scores higher overall with 57 vs 54, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or Grok Code Fast 1?

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 61.8.

Which is better for coding, Claude Haiku 4.5 or Grok Code Fast 1?

Claude Haiku 4.5 and Grok Code Fast 1 are tied for coding with average scores of 60.

Which is better for math, Claude Haiku 4.5 or Grok Code Fast 1?

Claude Haiku 4.5 leads in math with an average score of 67 vs 63.

Which is better for reasoning, Claude Haiku 4.5 or Grok Code Fast 1?

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 60.

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