benchlm.ai

GLM-4.5 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 28 (45 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

GLM-4.5

CreatorTsinghua
TypeProprietary
Context128K
Score28

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

Knowledge

Grok 4.1 Fast

GLM-4.5

34.8

Grok 4.1 Fast

91

37
MMLU
94
36
GPQA
92
34
SuperGPQA
90
32
OpenBookQA
88

Coding

Grok 4.1 Fast

GLM-4.5

29

Grok 4.1 Fast

86

29
HumanEval
86

Mathematics

Grok 4.1 Fast

GLM-4.5

36

Grok 4.1 Fast

95

37
AIME 2023
96
39
AIME 2024
98
38
AIME 2025
97
33
HMMT Feb 2023
92
35
HMMT Feb 2024
94
34
HMMT Feb 2025
93
36
BRUMO 2025
95

Reasoning

Grok 4.1 Fast

GLM-4.5

34

Grok 4.1 Fast

89

35
SimpleQA
90
33
MuSR
88

Frequently Asked Questions

Which is better, GLM-4.5 or Grok 4.1 Fast?

Grok 4.1 Fast scores higher overall with 73 vs 28, a difference of 45 points across all benchmarks.

Which is better for knowledge tasks, GLM-4.5 or Grok 4.1 Fast?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 34.8.

Which is better for coding, GLM-4.5 or Grok 4.1 Fast?

Grok 4.1 Fast leads in coding with an average score of 86 vs 29.

Which is better for math, GLM-4.5 or Grok 4.1 Fast?

Grok 4.1 Fast leads in math with an average score of 95 vs 36.

Which is better for reasoning, GLM-4.5 or Grok 4.1 Fast?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 34.

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