Model comparison

GLM-4.5-Air vs Qwen Plus

GLM-4.5-Air is the stronger model overall, scoring 38.9 to 37.1 on the Noometry Index.

Last verified October 10, 2026. 14 shared benchmarks.

GLM-4.5-Air Z.ai (Zhipu)

38.9

Rank #177 Confirmed

Qwen Plus

Alibaba (Qwen)

37.1

Rank #210 Confirmed

Summary

They share 14 benchmarks with published results for both. GLM-4.5-Air scores higher in 6 categories and Qwen Plus in 2 categories; 7 gaps are clear of the uncertainty.
The widest gap is in math, where GLM-4.5-Air leads 36.2 to 23.3.
The biggest single-benchmark swing is Kagi LLM Benchmark: 43% for GLM-4.5-Air and 63.3% for Qwen Plus.
GLM-4.5-Air is cheaper at $0.20 / $1.10 per million input/output tokens, against $0.40 / $1.20 for Qwen Plus.
Qwen Plus accepts more context: 1M tokens versus 131K.
GLM-4.5-Air has downloadable open weights; the other is API-only.

Side by side

GLM-4.5-Air and Qwen Plus specifications
	GLM-4.5-Air	Qwen Plus
Provider	Z.ai (Zhipu)	Alibaba (Qwen)
Noometry Index	38.9	37.1
Released	2025-07-20	2024-01-25
Weights	Open	Proprietary
Context window	131K	1M
Max output	98K	33K
Input $ / M tokens	$0.20	$0.40
Output $ / M tokens	$1.10	$1.20
Results tracked	27	20

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Category by category

Coding Qwen Plus leads

GLM-4.5-Air: 33.3 (#259), Qwen Plus: 38.9 (#167)

Coding benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Coding	1397	1328
GSO	2.9%	—

Reasoning Qwen Plus leads

GLM-4.5-Air: 24.1 (#166), Qwen Plus: 28.4 (#107)

Reasoning benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
Kagi LLM Benchmark	43%	63.3%
LMArena Hard Prompts	1379	1317
DTBench	—	81.1%
LMCA	—	24%
ForecastBench	59.2	—

Math GLM-4.5-Air leads

GLM-4.5-Air: 36.2 (#170), Qwen Plus: 23.3 (#271)

Math benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Math	1396	1326
OTIS Mock AIME 2024-2025	—	17.8%
Omni-MATH	39.1%	—
MATH Level 5	—	65.3%
FrontierMath (Feb 2025 set)	—	1.7%

Knowledge GLM-4.5-Air leads

GLM-4.5-Air: 35.0 (#191), Qwen Plus: 27.4 (#251)

Knowledge benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Expert	1370	1328
GPQA Diamond	—	48.1%
Humanity's Last Exam	8.1%	—
MMLU-Pro	76.2%	—
Vectara Hallucination Rate	9.3%	—
GPQA (HELM)	59.4%	—

Multilingual GLM-4.5-Air leads

GLM-4.5-Air: 49.1 (#135), Qwen Plus: 45.1 (#175)

Multilingual benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Non-English	1366	1310
LMArena Chinese	1426	1347
LMArena Japanese	1348	1251
LMArena Russian	1373	1323
LMArena French	1399	—
LMArena German	1377	—
LMArena Korean	1308	—
LMArena Spanish	1386	—

Instruction Following Too close to call

GLM-4.5-Air: 69.6 (#171), Qwen Plus: 68.8 (#181)

Instruction Following benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Instruction Following	1354	1303
IFEval	81.2%	—

Long Context GLM-4.5-Air leads

GLM-4.5-Air: 41.6 (#135), Qwen Plus: 40.3 (#158)

Long Context benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Longer Query	1366	1324

Writing & Preference GLM-4.5-Air leads

GLM-4.5-Air: 55.9 (#139), Qwen Plus: 52.2 (#176)

Writing & Preference benchmarks
Benchmark	GLM-4.5-Air	Qwen Plus
LMArena Text	1384	1326
LMArena Creative Writing	1343	1293
LMArena Multi-Turn	1371	1336
WildBench	78.9%	—

Frequently asked questions

Is GLM-4.5-Air better than Qwen Plus?

GLM-4.5-Air is the stronger model overall, scoring 38.9 to 37.1 on the Noometry Index.

Which is cheaper, GLM-4.5-Air or Qwen Plus?

GLM-4.5-Air is cheaper. It lists at $0.20 per million input tokens and $1.10 per million output tokens; Qwen Plus lists at $0.40 and $1.20.

Is GLM-4.5-Air or Qwen Plus better for coding?

Qwen Plus scores higher on coding benchmarks: 38.9 versus 33.3 in the Noometry coding category.

Which has the bigger context window?

Qwen Plus does, with 1M tokens against 131K.

How many benchmarks do GLM-4.5-Air and Qwen Plus share?

14 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and Qwen Plus has 20.