benchlm.ai

Grok 4 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 69 (4 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Grok 4

CreatorxAI
TypeProprietary
Context128K
Score69

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

Knowledge

Grok 4.1 Fast

Grok 4

84.8

Grok 4.1 Fast

91

87
MMLU
94
86
GPQA
92
84
SuperGPQA
90
82
OpenBookQA
88

Coding

Grok 4.1 Fast

Grok 4

79

Grok 4.1 Fast

86

79
HumanEval
86

Mathematics

Grok 4.1 Fast

Grok 4

86.6

Grok 4.1 Fast

95

87
AIME 2023
96
89
AIME 2024
98
88
AIME 2025
97
84
HMMT Feb 2023
92
86
HMMT Feb 2024
94
85
HMMT Feb 2025
93
87
BRUMO 2025
95

Reasoning

Grok 4.1 Fast

Grok 4

82

Grok 4.1 Fast

89

83
SimpleQA
90
81
MuSR
88

Frequently Asked Questions

Which is better, Grok 4 or Grok 4.1 Fast?

Grok 4.1 Fast scores higher overall with 73 vs 69, a difference of 4 points across all benchmarks.

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

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 84.8.

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

Grok 4.1 Fast leads in coding with an average score of 86 vs 79.

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

Grok 4.1 Fast leads in math with an average score of 95 vs 86.6.

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

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 82.

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