Phi-4 vs GLM-4.5-Air

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

Phi-4 has the cleaner overall profile here, landing at 39 versus 37. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

Phi-4's sharpest advantage is in coding, where it averages 82.6 against 19. The single biggest benchmark swing on the page is HumanEval, 82.6 to 27.

GLM-4.5-Air gives you the larger context window at 128K, compared with 16K for Phi-4.

Quick Verdict

Pick Phi-4 if you want the stronger benchmark profile. GLM-4.5-Air only becomes the better choice if you need the larger 128K context window.

Knowledge

Phi-4

Phi-4

70.5

GLM-4.5-Air

31

84.8
MMLU
35
56.1
GPQA
34
-
SuperGPQA
32
-
OpenBookQA
30
-
MMLU-Pro
51
-
HLE
4

Coding

Phi-4

Phi-4

82.6

GLM-4.5-Air

19

82.6
HumanEval
27
-
SWE-bench Verified
15
-
LiveCodeBench
15

Mathematics

GLM-4.5-Air
-
AIME 2023
35
-
AIME 2024
37
-
AIME 2025
36
-
HMMT Feb 2023
31
-
HMMT Feb 2024
33
-
HMMT Feb 2025
32
-
BRUMO 2025
34
-
MATH-500
57

Reasoning

GLM-4.5-Air
-
SimpleQA
33
-
MuSR
31
-
BBH
63

Instruction Following

GLM-4.5-Air
-
IFEval
68

Multilingual

Phi-4

Phi-4

80.6

GLM-4.5-Air

63

80.6
MGSM
63

Frequently Asked Questions

Which is better, Phi-4 or GLM-4.5-Air?

Phi-4 is ahead overall, 39 to 37. The biggest single separator in this matchup is HumanEval, where the scores are 82.6 and 27.

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

Phi-4 has the edge for knowledge tasks in this comparison, averaging 70.5 versus 31. Inside this category, MMLU is the benchmark that creates the most daylight between them.

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

Phi-4 has the edge for coding in this comparison, averaging 82.6 versus 19. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Phi-4 or GLM-4.5-Air?

Phi-4 has the edge for multilingual tasks in this comparison, averaging 80.6 versus 63. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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