GLM-4.5 vs o1-pro

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

GLM-4.5 is clearly ahead on the aggregate, 38 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o1-pro is the reasoning model in the pair, while GLM-4.5 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. o1-pro gives you the larger context window at 200K, compared with 128K for GLM-4.5.

Quick Verdict

Pick GLM-4.5 if you want the stronger benchmark profile. o1-pro only becomes the better choice if mathematics is the priority or you need the larger 200K context window.

Knowledge

o1-pro

GLM-4.5

32.2

o1-pro

79

37
MMLU
-
36
GPQA
79
34
SuperGPQA
-
32
OpenBookQA
-
51
MMLU-Pro
-
3
HLE
-

Coding

GLM-4.5
29
HumanEval
-
18
SWE-bench Verified
-
13
LiveCodeBench
-

Mathematics

o1-pro

GLM-4.5

38.6

o1-pro

86

37
AIME 2023
-
39
AIME 2024
86
38
AIME 2025
-
33
HMMT Feb 2023
-
35
HMMT Feb 2024
-
34
HMMT Feb 2025
-
36
BRUMO 2025
-
57
MATH-500
-

Reasoning

GLM-4.5
35
SimpleQA
-
33
MuSR
-
61
BBH
-

Instruction Following

GLM-4.5
68
IFEval
-

Multilingual

GLM-4.5
60
MGSM
-

Frequently Asked Questions

Which is better, GLM-4.5 or o1-pro?

GLM-4.5 is ahead overall, 38 to 33. The biggest single separator in this matchup is AIME 2024, where the scores are 39 and 86.

Which is better for knowledge tasks, GLM-4.5 or o1-pro?

o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 32.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for math, GLM-4.5 or o1-pro?

o1-pro has the edge for math in this comparison, averaging 86 versus 38.6. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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