Claude 3.5 Sonnet vs GLM-4.5

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

Quick Verdict

Claude 3.5 Sonnet wins overall with a score of 55 vs 28 (27 point difference).Claude 3.5 Sonnet wins 4 out of 4 categories.

Knowledge

Claude 3.5 Sonnet

Claude 3.5 Sonnet

63.5

GLM-4.5

34.8

65
MMLU
37
65
GPQA
36
63
SuperGPQA
34
61
OpenBookQA
32

Coding

Claude 3.5 Sonnet

Claude 3.5 Sonnet

57

GLM-4.5

29

57
HumanEval
29

Mathematics

Claude 3.5 Sonnet

Claude 3.5 Sonnet

64

GLM-4.5

36

65
AIME 2023
37
67
AIME 2024
39
66
AIME 2025
38
61
HMMT Feb 2023
33
63
HMMT Feb 2024
35
62
HMMT Feb 2025
34
64
BRUMO 2025
36

Reasoning

Claude 3.5 Sonnet

Claude 3.5 Sonnet

62

GLM-4.5

34

63
SimpleQA
35
61
MuSR
33

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or GLM-4.5?

Claude 3.5 Sonnet scores higher overall with 55 vs 28, a difference of 27 points across all benchmarks.

Which is better for knowledge tasks, Claude 3.5 Sonnet or GLM-4.5?

Claude 3.5 Sonnet leads in knowledge tasks with an average score of 63.5 vs 34.8.

Which is better for coding, Claude 3.5 Sonnet or GLM-4.5?

Claude 3.5 Sonnet leads in coding with an average score of 57 vs 29.

Which is better for math, Claude 3.5 Sonnet or GLM-4.5?

Claude 3.5 Sonnet leads in math with an average score of 64 vs 36.

Which is better for reasoning, Claude 3.5 Sonnet or GLM-4.5?

Claude 3.5 Sonnet leads in reasoning with an average score of 62 vs 34.