benchlm.ai

GLM-4.5-Air vs GPT-5 (medium)

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

Quick Verdict

GPT-5 (medium) wins overall with a score of 70 vs 26 (44 point difference).GPT-5 (medium) wins 4 out of 4 categories.

GLM-4.5-Air

CreatorTsinghua
TypeProprietary
Context128K
Score26

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

Knowledge

GPT-5 (medium)

GLM-4.5-Air

32.8

GPT-5 (medium)

88

35
MMLU
91
34
GPQA
89
32
SuperGPQA
87
30
OpenBookQA
85

Coding

GPT-5 (medium)

GLM-4.5-Air

27

GPT-5 (medium)

83

27
HumanEval
83

Mathematics

GPT-5 (medium)

GLM-4.5-Air

34

GPT-5 (medium)

92

35
AIME 2023
93
37
AIME 2024
95
36
AIME 2025
94
31
HMMT Feb 2023
89
33
HMMT Feb 2024
91
32
HMMT Feb 2025
90
34
BRUMO 2025
92

Reasoning

GPT-5 (medium)

GLM-4.5-Air

32

GPT-5 (medium)

86

33
SimpleQA
87
31
MuSR
85

Frequently Asked Questions

Which is better, GLM-4.5-Air or GPT-5 (medium)?

GPT-5 (medium) scores higher overall with 70 vs 26, a difference of 44 points across all benchmarks.

Which is better for knowledge tasks, GLM-4.5-Air or GPT-5 (medium)?

GPT-5 (medium) leads in knowledge tasks with an average score of 88 vs 32.8.

Which is better for coding, GLM-4.5-Air or GPT-5 (medium)?

GPT-5 (medium) leads in coding with an average score of 83 vs 27.

Which is better for math, GLM-4.5-Air or GPT-5 (medium)?

GPT-5 (medium) leads in math with an average score of 92 vs 34.

Which is better for reasoning, GLM-4.5-Air or GPT-5 (medium)?

GPT-5 (medium) leads in reasoning with an average score of 86 vs 32.

Related Comparisons

GLM-4.5-Air vs GPT-5.4GLM-4.5-Air vs Gemini 3.1 ProGLM-4.5-Air vs Claude Opus 4.6GLM-4.5-Air vs GPT-5.3 CodexGLM-4.5-Air vs Grok 4.1GLM-4.5-Air vs GPT-5.2