GLM 4.5 Air

GLM 4.5 Air – Efficient Agentic MoE Model

GLM 4.5 Air is Z.AI's (Zhipu AI) compact 106B total / 12B active Mixture-of-Experts model for intelligent-agent workloads. The official model card positions it as a lighter member of the GLM-4.5 family that keeps the same agentic design goals while reducing compute requirements.

Defining Characteristics

• Agent-oriented design: The model is documented as part of the GLM-4.5 series for intelligent-agent applications.
• Dual response behavior: It supports both thinking mode for complex reasoning and tool use, and non-thinking mode for immediate responses.
• Cost-performance focus: The model card frames GLM 4.5 Air as the more compact alternative to the full GLM-4.5 model.
• Commercial-ready release: The MIT license allows commercial use and secondary development.

Positioning

GLM 4.5 Air exists for workloads that benefit from GLM-4.5 family capabilities but need a smaller model footprint. Officially, it is the efficiency tier in the series rather than a separate product line.