GLM-4.5

model paper
Z.ai
First "Z.ai" branded release. 355B Mixture-of-Experts model designed for Agentic Engineering. Claimed to be cheaper to use than DeepSeek.
AnnouncementPaper (arXiv)Artificial AnalysisOpenRouter

Outputs 2

GLM-4.5 / 4.5 Air

model
Announcement
Architecture MOE
Parameters 355B

GLM-4.5: Agentic, Reasoning, and Coding (ARC) Foundation Models

paper

Technical report for the GLM-4.5 series. 355B MoE for agentic engineering.

Paper (arXiv)

arXiv: 2508.06471

moeefficiencyagentictechnical-report