benchlm.ai

GLM-4.5 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 28 (37 point difference).o4-mini (high) wins 4 out of 4 categories.

GLM-4.5

CreatorTsinghua
TypeProprietary
Context128K
Score28

o4-mini (high)

CreatorOpenAI
TypeProprietary
Context200K
Score65

Knowledge

o4-mini (high)

GLM-4.5

34.8

o4-mini (high)

80.5

37
MMLU
82
36
GPQA
82
34
SuperGPQA
80
32
OpenBookQA
78

Coding

o4-mini (high)

GLM-4.5

29

o4-mini (high)

74

29
HumanEval
74

Mathematics

o4-mini (high)

GLM-4.5

36

o4-mini (high)

82

37
AIME 2023
83
39
AIME 2024
85
38
AIME 2025
84
33
HMMT Feb 2023
79
35
HMMT Feb 2024
81
34
HMMT Feb 2025
80
36
BRUMO 2025
82

Reasoning

o4-mini (high)

GLM-4.5

34

o4-mini (high)

79

35
SimpleQA
80
33
MuSR
78

Frequently Asked Questions

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

o4-mini (high) scores higher overall with 65 vs 28, a difference of 37 points across all benchmarks.

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

o4-mini (high) leads in knowledge tasks with an average score of 80.5 vs 34.8.

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

o4-mini (high) leads in coding with an average score of 74 vs 29.

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

o4-mini (high) leads in math with an average score of 82 vs 36.

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

o4-mini (high) leads in reasoning with an average score of 79 vs 34.

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