Claude 3 Haiku vs Grok 4.1 Fast

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

Quick Verdict

Grok 4.1 Fast wins overall with a score of 73 vs 46 (27 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Knowledge

Grok 4.1 Fast

Claude 3 Haiku

54.5

Grok 4.1 Fast

91

56
MMLU
94
56
GPQA
92
54
SuperGPQA
90
52
OpenBookQA
88

Coding

Grok 4.1 Fast

Claude 3 Haiku

48

Grok 4.1 Fast

86

48
HumanEval
86

Mathematics

Grok 4.1 Fast

Claude 3 Haiku

55

Grok 4.1 Fast

95

56
AIME 2023
96
58
AIME 2024
98
57
AIME 2025
97
52
HMMT Feb 2023
92
54
HMMT Feb 2024
94
53
HMMT Feb 2025
93
55
BRUMO 2025
95

Reasoning

Grok 4.1 Fast

Claude 3 Haiku

53

Grok 4.1 Fast

89

54
SimpleQA
90
52
MuSR
88

Frequently Asked Questions

Which is better, Claude 3 Haiku or Grok 4.1 Fast?

Grok 4.1 Fast scores higher overall with 73 vs 46, a difference of 27 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Haiku or Grok 4.1 Fast?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 54.5.

Which is better for coding, Claude 3 Haiku or Grok 4.1 Fast?

Grok 4.1 Fast leads in coding with an average score of 86 vs 48.

Which is better for math, Claude 3 Haiku or Grok 4.1 Fast?

Grok 4.1 Fast leads in math with an average score of 95 vs 55.

Which is better for reasoning, Claude 3 Haiku or Grok 4.1 Fast?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 53.