Model comparison

GLM-4.5-Air vs Granite 4.0 Micro

GLM-4.5-Air is the stronger model overall, scoring 38.9 to 29.0 on the Noometry Index. Granite 4.0 Micro costs 10× less per token, which makes it the better buy when GLM-4.5-Air's lead doesn't matter for your workload.

Last verified October 10, 2026. 5 shared benchmarks.

GLM-4.5-Air Z.ai (Zhipu)

38.9

Rank #177 Confirmed

Granite 4.0 Micro IBM

29.0

Rank #318 Confirmed

Summary

They share 5 benchmarks with published results for both. GLM-4.5-Air scores higher in 4 categories and Granite 4.0 Micro in 1 category; 4 gaps are clear of the uncertainty.
The widest gap is in knowledge, where GLM-4.5-Air leads 35.0 to 9.9.
The biggest single-benchmark swing is MMLU-Pro: 76.2% for GLM-4.5-Air and 39.5% for Granite 4.0 Micro.
Granite 4.0 Micro is cheaper at $0.017 / $0.11 per million input/output tokens, against $0.20 / $1.10 for GLM-4.5-Air.
GLM-4.5-Air accepts more context: 131K tokens versus 131K.

Side by side

GLM-4.5-Air and Granite 4.0 Micro specifications
	GLM-4.5-Air	Granite 4.0 Micro
Provider	Z.ai (Zhipu)	IBM
Noometry Index	38.9	29.0
Released	2025-07-20	2025-10-02
Weights	Open	Open
Context window	131K	131K
Max output	98K	118K
Input $ / M tokens	$0.20	$0.017
Output $ / M tokens	$1.10	$0.11
Results tracked	27	8

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Category by category

Coding Not comparable

GLM-4.5-Air: 33.3 (#259), Granite 4.0 Micro: —

Coding benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
GSO	2.9%	—
LMArena Coding	1397	—

Reasoning GLM-4.5-Air leads

GLM-4.5-Air: 24.1 (#166), Granite 4.0 Micro: 19.2 (#265)

Reasoning benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
Kagi LLM Benchmark	43%	—
Chess Puzzles	—	0%
LMArena Hard Prompts	1379	—
ForecastBench	59.2	—

Math GLM-4.5-Air leads

GLM-4.5-Air: 36.2 (#170), Granite 4.0 Micro: 12.0 (#307)

Math benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
Omni-MATH	39.1%	20.9%
OTIS Mock AIME 2024-2025	—	2.8%
LMArena Math	1396	—

Knowledge GLM-4.5-Air leads

GLM-4.5-Air: 35.0 (#191), Granite 4.0 Micro: 9.9 (#304)

Knowledge benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
MMLU-Pro	76.2%	39.5%
GPQA (HELM)	59.4%	30.7%
GPQA Diamond	—	28.3%
Humanity's Last Exam	8.1%	—
Vectara Hallucination Rate	9.3%	—
LMArena Expert	1370	—

Multilingual Not comparable

GLM-4.5-Air: 49.1 (#135), Granite 4.0 Micro: —

Multilingual benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
LMArena Non-English	1366	—
LMArena Chinese	1426	—
LMArena French	1399	—
LMArena German	1377	—
LMArena Japanese	1348	—
LMArena Korean	1308	—
LMArena Russian	1373	—
LMArena Spanish	1386	—

Instruction Following Too close to call

GLM-4.5-Air: 69.6 (#171), Granite 4.0 Micro: 69.9 (#169)

Instruction Following benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
IFEval	81.2%	84.9%
LMArena Instruction Following	1354	—

Long Context Not comparable

GLM-4.5-Air: 41.6 (#135), Granite 4.0 Micro: —

Long Context benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
LMArena Longer Query	1366	—

Writing & Preference GLM-4.5-Air leads

GLM-4.5-Air: 55.9 (#139), Granite 4.0 Micro: 46.7 (#216)

Writing & Preference benchmarks
Benchmark	GLM-4.5-Air	Granite 4.0 Micro
WildBench	78.9%	67%
LMArena Text	1384	—
LMArena Creative Writing	1343	—
LMArena Multi-Turn	1371	—

Frequently asked questions

Is GLM-4.5-Air better than Granite 4.0 Micro?

Which is cheaper, GLM-4.5-Air or Granite 4.0 Micro?

Granite 4.0 Micro is cheaper. It lists at $0.017 per million input tokens and $0.11 per million output tokens; GLM-4.5-Air lists at $0.20 and $1.10.

Which has the bigger context window?

GLM-4.5-Air does, with 131K tokens against 131K.

How many benchmarks do GLM-4.5-Air and Granite 4.0 Micro share?

5 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and Granite 4.0 Micro has 8.