Audience

Developers and AI practitioners wanting a solution providing reasoning, coding and agentic functions for building sophisticated applications

About GLM-4.5

GLM‑4.5 is Z.ai’s latest flagship model in the GLM family, engineered with 355 billion total parameters (32 billion active) and a companion GLM‑4.5‑Air variant (106 billion total, 12 billion active) to unify advanced reasoning, coding, and agentic capabilities in one architecture. It operates in a “thinking” mode for complex, multi‑step reasoning and tool use, and a “non‑thinking” mode for instant responses, supporting up to 128 K token context length and native function calling. Available via the Z.ai chat platform and API, with open weights on HuggingFace and ModelScope, GLM‑4.5 ingests diverse inputs to solve general problem‑solving, common‑sense reasoning, coding from scratch or within existing projects, and end‑to‑end agent workflows such as web browsing and slide generation. Built on a Mixture‑of‑Experts design with loss‑free balance routing, grouped‑query attention, and an MTP layer for speculative decoding, it delivers enterprise‑grade performance.

Integrations

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Company Information

Z.ai
Founded: 2019
China
z.ai/blog/glm-4.5

Videos and Screen Captures

GLM-4.5 Screenshot 1
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Product Details

Platforms Supported
Cloud
Training
Documentation
In Person
Support
Phone Support
Online

GLM-4.5 Frequently Asked Questions

Q: What kinds of users and organization types does GLM-4.5 work with?
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GLM-4.5 Product Features