AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Muse Spark vs GLM-4-9B

Meta
Muse Spark
Z.ai
GLM-4-9B
Overview
CompanyMetaZ.ai
Release dateApr 8 2026Jun 5 2024
AccessProprietaryOpen Weight
Specifications
Parameters
9B
Benchmarks
Coding
SWE-Bench Verified
77.4%
Science
GPQA Diamond
89.5%
Multimodal
MMMU
80.4%
Timeline
Release gapGLM-4-9B shipped 672 days before Muse Spark

Which is better: Muse Spark or GLM-4-9B?

Muse Spark and GLM-4-9B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4-9B shipped 672 days before Muse Spark, so benchmark comparisons should account for the intervening progress.

Muse Spark is proprietary, while GLM-4-9B is open weight.

Direct benchmark comparisons are unavailable — Muse Spark and GLM-4-9B don't publish scores on any of the same benchmarks.

Frequently asked questions

Muse Spark was released by Meta on Apr 8 2026.

GLM-4-9B was released by Z.ai on Jun 5 2024.

Muse Spark is a proprietary model released by Meta. GLM-4-9B is an open weight model released by Z.ai.

Other comparisons