Model comparison

GLM-4.6V vs Solar Pro4

GLM-4.6V and Solar Pro4 score almost the same on the Noometry Index (41.3 vs 42.1), so choose on price, context window or the category you care about most.

Last verified October 10, 2026. 11 shared benchmarks.

GLM-4.6V Z.ai (Zhipu)

41.3

Rank #137 Confirmed

Solar Pro4

Upstage

42.1

Rank #121 Confirmed

Summary

They share 11 benchmarks with published results for both. GLM-4.6V scores higher in 2 categories and Solar Pro4 in 5 categories; 2 gaps are clear of the uncertainty.
GLM-4.6V is cheaper at $0.30 / $0.90 per million input/output tokens, against $0.30 / $1.20 for Solar Pro4.
Solar Pro4 accepts more context: 524K tokens versus 128K.
GLM-4.6V has downloadable open weights; the other is API-only.

Side by side

GLM-4.6V and Solar Pro4 specifications
	GLM-4.6V	Solar Pro4
Provider	Z.ai (Zhipu)	Upstage
Noometry Index	41.3	42.1
Released	2025-12-08	2026-08-06
Weights	Open	Proprietary
Context window	128K	524K
Max output	33K	131K
Input $ / M tokens	$0.30	$0.30
Output $ / M tokens	$0.90	$1.20
Results tracked	12	18

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Category by category

Coding Too close to call

GLM-4.6V: 40.9 (#128), Solar Pro4: 40.1 (#149)

Coding benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Coding	1390	1437
LMArena WebDev	—	1371

Reasoning Too close to call

GLM-4.6V: 27.6 (#115), Solar Pro4: 28.5 (#104)

Reasoning benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Hard Prompts	1368	1399

Math Not comparable

GLM-4.6V: —, Solar Pro4: 38.8 (#128)

Math benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Math	—	1416

Knowledge Solar Pro4 leads

GLM-4.6V: 38.0 (#149), Solar Pro4: 39.8 (#129)

Knowledge benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Expert	1371	1427

Multimodal Not comparable

GLM-4.6V: 34.8 (#90), Solar Pro4: —

Multimodal benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Vision	1164	—

Multilingual Too close to call

GLM-4.6V: 48.6 (#141), Solar Pro4: 48.7 (#139)

Multilingual benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Non-English	1359	1361
LMArena Chinese	1425	1415
LMArena Russian	1340	1360
LMArena French	—	1397
LMArena German	—	1364
LMArena Japanese	—	1309
LMArena Korean	—	1382
LMArena Spanish	—	1401

Instruction Following Solar Pro4 leads

GLM-4.6V: 71.4 (#151), Solar Pro4: 72.7 (#132)

Instruction Following benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Instruction Following	1352	1377

Long Context Too close to call

GLM-4.6V: 41.3 (#143), Solar Pro4: 42.1 (#130)

Long Context benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Longer Query	1358	1381

Writing & Preference Too close to call

GLM-4.6V: 56.6 (#137), Solar Pro4: 56.5 (#138)

Writing & Preference benchmarks
Benchmark	GLM-4.6V	Solar Pro4
LMArena Text	1377	1386
LMArena Creative Writing	1347	1316
LMArena Multi-Turn	1360	1385

Frequently asked questions

Is GLM-4.6V better than Solar Pro4?

GLM-4.6V and Solar Pro4 score almost the same on the Noometry Index (41.3 vs 42.1), so choose on price, context window or the category you care about most.

Which is cheaper, GLM-4.6V or Solar Pro4?

GLM-4.6V is cheaper. It lists at $0.30 per million input tokens and $0.90 per million output tokens; Solar Pro4 lists at $0.30 and $1.20.

Is GLM-4.6V or Solar Pro4 better for coding?

They score almost the same on coding (40.9 vs 40.1); test both on your own repository before choosing.

Which has the bigger context window?

Solar Pro4 does, with 524K tokens against 128K.

How many benchmarks do GLM-4.6V and Solar Pro4 share?

11 benchmarks have published results for both models. GLM-4.6V has 12 scored results on Noometry and Solar Pro4 has 18.