GLM is the large language model family developed by Z.ai (Zhipu AI). It is one of the most active open-weight model lines coming out of China, competing directly with Western frontier models on coding, reasoning, and agentic tool-use benchmarks while typically costing significantly less per token.
This page tracks the GLM family as a whole: pricing philosophy, how it compares to other providers, and where it fits for developers evaluating budget-friendly alternatives to Claude or GPT for code generation and content tasks.
Specific GLM releases get their own dedicated page below, since version-specific benchmarks and pricing change quickly and deserve to be updated independently of this overview.