Claude 4 Sonnet vs GLM-4.5-Air

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

Quick Verdict

Claude 4 Sonnet wins overall with a score of 59 vs 26 (33 point difference).Claude 4 Sonnet wins 4 out of 4 categories.

Knowledge

Claude 4 Sonnet

Claude 4 Sonnet

71.5

GLM-4.5-Air

32.8

73
MMLU
35
73
GPQA
34
71
SuperGPQA
32
69
OpenBookQA
30

Coding

Claude 4 Sonnet

Claude 4 Sonnet

65

GLM-4.5-Air

27

65
HumanEval
27

Mathematics

Claude 4 Sonnet

Claude 4 Sonnet

72

GLM-4.5-Air

34

73
AIME 2023
35
75
AIME 2024
37
74
AIME 2025
36
69
HMMT Feb 2023
31
71
HMMT Feb 2024
33
70
HMMT Feb 2025
32
72
BRUMO 2025
34

Reasoning

Claude 4 Sonnet

Claude 4 Sonnet

70

GLM-4.5-Air

32

71
SimpleQA
33
69
MuSR
31

Frequently Asked Questions

Which is better, Claude 4 Sonnet or GLM-4.5-Air?

Claude 4 Sonnet scores higher overall with 59 vs 26, a difference of 33 points across all benchmarks.

Which is better for knowledge tasks, Claude 4 Sonnet or GLM-4.5-Air?

Claude 4 Sonnet leads in knowledge tasks with an average score of 71.5 vs 32.8.

Which is better for coding, Claude 4 Sonnet or GLM-4.5-Air?

Claude 4 Sonnet leads in coding with an average score of 65 vs 27.

Which is better for math, Claude 4 Sonnet or GLM-4.5-Air?

Claude 4 Sonnet leads in math with an average score of 72 vs 34.

Which is better for reasoning, Claude 4 Sonnet or GLM-4.5-Air?

Claude 4 Sonnet leads in reasoning with an average score of 70 vs 32.