GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter size. GLM-4.5-Air also supports hybrid inference modes, offering a "thinking mode" for advanced reasoning and tool use, and a "non-thinking mode" for real-time interaction. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. [Learn more in our docs](https://ask-coreai.com)
With CoreAI, you can start chatting with Z.ai: GLM 4.5 Air (free) instantly — no separate subscription needed. CoreAI bundles access to Z.ai: GLM 4.5 Air (free) along with 300+ other AI models from Z-ai and other providers like OpenAI, Anthropic, Google, Meta, and more.
Chat with Z.ai: GLM 4.5 Air (free) and 300+ other AI models — all in one app.