benchlm.ai

GLM-4.5-Air vs o4-mini (high)

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

Quick Verdict

o4-mini (high) wins overall with a score of 65 vs 26 (39 point difference).o4-mini (high) wins 4 out of 4 categories.

GLM-4.5-Air

CreatorTsinghua
TypeProprietary
Context128K
Score26

o4-mini (high)

CreatorOpenAI
TypeProprietary
Context200K
Score65

Knowledge

o4-mini (high)

GLM-4.5-Air

32.8

o4-mini (high)

80.5

35
MMLU
82
34
GPQA
82
32
SuperGPQA
80
30
OpenBookQA
78

Coding

o4-mini (high)

GLM-4.5-Air

27

o4-mini (high)

74

27
HumanEval
74

Mathematics

o4-mini (high)

GLM-4.5-Air

34

o4-mini (high)

82

35
AIME 2023
83
37
AIME 2024
85
36
AIME 2025
84
31
HMMT Feb 2023
79
33
HMMT Feb 2024
81
32
HMMT Feb 2025
80
34
BRUMO 2025
82

Reasoning

o4-mini (high)

GLM-4.5-Air

32

o4-mini (high)

79

33
SimpleQA
80
31
MuSR
78

Frequently Asked Questions

Which is better, GLM-4.5-Air or o4-mini (high)?

o4-mini (high) scores higher overall with 65 vs 26, a difference of 39 points across all benchmarks.

Which is better for knowledge tasks, GLM-4.5-Air or o4-mini (high)?

o4-mini (high) leads in knowledge tasks with an average score of 80.5 vs 32.8.

Which is better for coding, GLM-4.5-Air or o4-mini (high)?

o4-mini (high) leads in coding with an average score of 74 vs 27.

Which is better for math, GLM-4.5-Air or o4-mini (high)?

o4-mini (high) leads in math with an average score of 82 vs 34.

Which is better for reasoning, GLM-4.5-Air or o4-mini (high)?

o4-mini (high) leads in reasoning with an average score of 79 vs 32.

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