Model comparison

Seed 2.0 Pro vs GLM-4.7-Flash

Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 38.8 on the Noometry Index. GLM-4.7-Flash costs 7.8× less per token, which makes it the better buy when Seed 2.0 Pro's lead doesn't matter for your workload.

Last verified October 12, 2026. 16 shared benchmarks.

Seed 2.0 Pro

ByteDance Seed

43.2

Rank #96 Confirmed

GLM-4.7-Flash Z.ai (Zhipu)

38.8

Rank #180 Confirmed

Summary

They share 16 benchmarks with published results for both. Seed 2.0 Pro scores higher in 8 categories and GLM-4.7-Flash in 0 categories; 8 gaps are clear of the uncertainty.
The widest gap is in writing & preference, where Seed 2.0 Pro leads 62.9 to 47.4.
GLM-4.7-Flash is cheaper at $0.06 / $0.40 per million input/output tokens, against $0.50 / $3 for Seed 2.0 Pro.
Seed 2.0 Pro accepts more context: 256K tokens versus 200K.
GLM-4.7-Flash has downloadable open weights; the other is API-only.

Side by side

Seed 2.0 Pro and GLM-4.7-Flash specifications
	Seed 2.0 Pro	GLM-4.7-Flash
Provider	ByteDance Seed	Z.ai (Zhipu)
Noometry Index	43.2	38.8
Released	2026-02-14	2026-01-19
Weights	Proprietary	Open
Context window	256K	200K
Max output	128K	131K
Input $ / M tokens	$0.50	$0.06
Output $ / M tokens	$3	$0.40
Results tracked	20	21

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Category by category

Coding Seed 2.0 Pro leads

Seed 2.0 Pro: 43.5 (#86), GLM-4.7-Flash: 40.6 (#135)

Coding benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Coding	1472	1383

Reasoning Seed 2.0 Pro leads

Seed 2.0 Pro: 24.1 (#165), GLM-4.7-Flash: 20.9 (#229)

Reasoning benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Hard Prompts	1453	1356
NYT Connections (extended)	28.4%	—
Chess Puzzles	—	0%
Thematic Generalization	57.1%	—

Math Seed 2.0 Pro leads

Seed 2.0 Pro: 39.3 (#108), GLM-4.7-Flash: 36.1 (#173)

Math benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Math	1439	1355
OTIS Mock AIME 2024-2025	—	58.3%

Knowledge Seed 2.0 Pro leads

Seed 2.0 Pro: 40.2 (#122), GLM-4.7-Flash: 35.5 (#184)

Knowledge benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Expert	1440	1357
GPQA Diamond	—	60.5%
Vectara Hallucination Rate	—	9.3%

Multimodal Not comparable

Seed 2.0 Pro: 41.5 (#35), GLM-4.7-Flash: —

Multimodal benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Vision	1274	—

Multilingual Seed 2.0 Pro leads

Seed 2.0 Pro: 54.5 (#39), GLM-4.7-Flash: 46.5 (#158)

Multilingual benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Non-English	1441	1330
LMArena Chinese	1489	1403
LMArena French	1471	1332
LMArena German	1442	1337
LMArena Korean	1411	1283
LMArena Russian	1449	1332
LMArena Spanish	1460	1350
LMArena Japanese	1408	—

Instruction Following Seed 2.0 Pro leads

Seed 2.0 Pro: 74.5 (#91), GLM-4.7-Flash: 70.1 (#167)

Instruction Following benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Instruction Following	1414	1327

Long Context Seed 2.0 Pro leads

Seed 2.0 Pro: 43.6 (#90), GLM-4.7-Flash: 40.9 (#148)

Long Context benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Longer Query	1428	1345

Writing & Preference Seed 2.0 Pro leads

Seed 2.0 Pro: 62.9 (#69), GLM-4.7-Flash: 47.4 (#210)

Writing & Preference benchmarks
Benchmark	Seed 2.0 Pro	GLM-4.7-Flash
LMArena Text	1448	1351
LMArena Creative Writing	1406	1297
LMArena Multi-Turn	1441	1342
EQ-Bench Creative Writing	—	1125

Frequently asked questions

Is Seed 2.0 Pro better than GLM-4.7-Flash?

Which is cheaper, Seed 2.0 Pro or GLM-4.7-Flash?

GLM-4.7-Flash is cheaper. It lists at $0.06 per million input tokens and $0.40 per million output tokens; Seed 2.0 Pro lists at $0.50 and $3.

Is Seed 2.0 Pro or GLM-4.7-Flash better for coding?

Seed 2.0 Pro scores higher on coding benchmarks: 43.5 versus 40.6 in the Noometry coding category.

Which has the bigger context window?

Seed 2.0 Pro does, with 256K tokens against 200K.

How many benchmarks do Seed 2.0 Pro and GLM-4.7-Flash share?

16 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and GLM-4.7-Flash has 21.