benchlm.ai

Claude 4 Sonnet 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 59 (14 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Claude 4 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score59

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

Knowledge

Grok 4.1 Fast

Claude 4 Sonnet

71.5

Grok 4.1 Fast

91

73
MMLU
94
73
GPQA
92
71
SuperGPQA
90
69
OpenBookQA
88

Coding

Grok 4.1 Fast

Claude 4 Sonnet

65

Grok 4.1 Fast

86

65
HumanEval
86

Mathematics

Grok 4.1 Fast

Claude 4 Sonnet

72

Grok 4.1 Fast

95

73
AIME 2023
96
75
AIME 2024
98
74
AIME 2025
97
69
HMMT Feb 2023
92
71
HMMT Feb 2024
94
70
HMMT Feb 2025
93
72
BRUMO 2025
95

Reasoning

Grok 4.1 Fast

Claude 4 Sonnet

70

Grok 4.1 Fast

89

71
SimpleQA
90
69
MuSR
88

Frequently Asked Questions

Which is better, Claude 4 Sonnet or Grok 4.1 Fast?

Grok 4.1 Fast scores higher overall with 73 vs 59, a difference of 14 points across all benchmarks.

Which is better for knowledge tasks, Claude 4 Sonnet or Grok 4.1 Fast?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 71.5.

Which is better for coding, Claude 4 Sonnet or Grok 4.1 Fast?

Grok 4.1 Fast leads in coding with an average score of 86 vs 65.

Which is better for math, Claude 4 Sonnet or Grok 4.1 Fast?

Grok 4.1 Fast leads in math with an average score of 95 vs 72.

Which is better for reasoning, Claude 4 Sonnet or Grok 4.1 Fast?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 70.

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