benchlm.ai

GLM-4.5-Air vs Grok Code Fast 1

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

Quick Verdict

Grok Code Fast 1 wins overall with a score of 54 vs 26 (28 point difference).Grok Code Fast 1 wins 4 out of 4 categories.

GLM-4.5-Air

CreatorTsinghua
TypeProprietary
Context128K
Score26

Grok Code Fast 1

CreatorxAI
TypeProprietary
Context256K
Score54

Knowledge

Grok Code Fast 1

GLM-4.5-Air

32.8

Grok Code Fast 1

61.8

35
MMLU
64
34
GPQA
63
32
SuperGPQA
61
30
OpenBookQA
59

Coding

Grok Code Fast 1

GLM-4.5-Air

27

Grok Code Fast 1

60

27
HumanEval
60

Mathematics

Grok Code Fast 1

GLM-4.5-Air

34

Grok Code Fast 1

63

35
AIME 2023
64
37
AIME 2024
66
36
AIME 2025
65
31
HMMT Feb 2023
60
33
HMMT Feb 2024
62
32
HMMT Feb 2025
61
34
BRUMO 2025
63

Reasoning

Grok Code Fast 1

GLM-4.5-Air

32

Grok Code Fast 1

60

33
SimpleQA
61
31
MuSR
59

Frequently Asked Questions

Which is better, GLM-4.5-Air or Grok Code Fast 1?

Grok Code Fast 1 scores higher overall with 54 vs 26, a difference of 28 points across all benchmarks.

Which is better for knowledge tasks, GLM-4.5-Air or Grok Code Fast 1?

Grok Code Fast 1 leads in knowledge tasks with an average score of 61.8 vs 32.8.

Which is better for coding, GLM-4.5-Air or Grok Code Fast 1?

Grok Code Fast 1 leads in coding with an average score of 60 vs 27.

Which is better for math, GLM-4.5-Air or Grok Code Fast 1?

Grok Code Fast 1 leads in math with an average score of 63 vs 34.

Which is better for reasoning, GLM-4.5-Air or Grok Code Fast 1?

Grok Code Fast 1 leads in reasoning with an average score of 60 vs 32.

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