Model comparison

GLM-4.6V vs Hy4 preview

Hy4 preview is the stronger model overall, scoring 45.3 to 41.3 on the Noometry Index. GLM-4.6V costs 2.5× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.

Last verified October 10, 2026. 0 shared benchmarks.

GLM-4.6V Z.ai (Zhipu)

41.3

Rank #137 Confirmed

Hy4 preview

Tencent

45.3

Rank #73 Reported

Summary

The widest gap is in coding, where Hy4 preview leads 51.6 to 40.9.
GLM-4.6V is cheaper at $0.30 / $0.90 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.
Hy4 preview accepts more context: 1.05M tokens versus 128K.

Side by side

GLM-4.6V and Hy4 preview specifications
	GLM-4.6V	Hy4 preview
Provider	Z.ai (Zhipu)	Tencent
Noometry Index	41.3	45.3
Released	2025-12-08	2026-08-28
Weights	Open	Open
Context window	128K	1.05M
Max output	33K	64K
Input $ / M tokens	$0.30	$0.75
Output $ / M tokens	$0.90	$2.25
Results tracked	12	3

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Category by category

Coding Hy4 preview leads

GLM-4.6V: 40.9 (#128), Hy4 preview: 51.6 (#38)

Coding benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena WebDev	—	1632
LMArena Coding	1390	—

Reasoning Hy4 preview leads

GLM-4.6V: 27.6 (#115), Hy4 preview: 31.9 (#79)

Reasoning benchmarks
Benchmark	GLM-4.6V	Hy4 preview
NYT Connections (extended)	—	68.2%
LMArena Hard Prompts	1368	—

Math Not comparable

GLM-4.6V: —, Hy4 preview: 55.7 (#42)

Math benchmarks
Benchmark	GLM-4.6V	Hy4 preview
ProofBench	—	75%

Knowledge Not comparable

GLM-4.6V: 38.0 (#149), Hy4 preview: —

Knowledge benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena Expert	1371	—

Multimodal Not comparable

GLM-4.6V: 34.8 (#90), Hy4 preview: —

Multimodal benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena Vision	1164	—

Multilingual Not comparable

GLM-4.6V: 48.6 (#141), Hy4 preview: —

Multilingual benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena Non-English	1359	—
LMArena Chinese	1425	—
LMArena Russian	1340	—

Instruction Following Not comparable

GLM-4.6V: 71.4 (#151), Hy4 preview: —

Instruction Following benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena Instruction Following	1352	—

Long Context Not comparable

GLM-4.6V: 41.3 (#143), Hy4 preview: —

Long Context benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena Longer Query	1358	—

Writing & Preference Not comparable

GLM-4.6V: 56.6 (#137), Hy4 preview: —

Writing & Preference benchmarks
Benchmark	GLM-4.6V	Hy4 preview
LMArena Text	1377	—
LMArena Creative Writing	1347	—
LMArena Multi-Turn	1360	—

Frequently asked questions

Is GLM-4.6V better than Hy4 preview?

Which is cheaper, GLM-4.6V or Hy4 preview?

GLM-4.6V is cheaper. It lists at $0.30 per million input tokens and $0.90 per million output tokens; Hy4 preview lists at $0.75 and $2.25.

Is GLM-4.6V or Hy4 preview better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 40.9 in the Noometry coding category.

Which has the bigger context window?

Hy4 preview does, with 1.05M tokens against 128K.

How many benchmarks do GLM-4.6V and Hy4 preview share?

0 benchmarks have published results for both models. GLM-4.6V has 12 scored results on Noometry and Hy4 preview has 3.