GLM-5.3 is now open-weight

Z.ai released GLM-5.3 as an open-weight model, making its most capable model for agentic coding and cyber defense available to download, run, and customize. The weights are hosted on Hugging Face at huggingface.co/zai-org/GLM-5.3, with a technical blog at z.ai/blog/glm-5.3.

Z.ai on X: "GLM-5.3 is now open-weight. Our most capable model for agentic coding and cyber defense is now available to download, run, and customize. Weights: https://t.co/v1IbWMXxg4 Tech blog: https://t.co/ekQkO83jCv" GLM-5.3 is now open-weight. Our most capable model for agentic coding and cyber defense is now available to download, run, and customize. Weights: huggingface.co/zai-org/GLM-5.3 Tech blog: z.ai/blog/glm-5.3 GLM-5.3 is now open-weight. Our most capable model for agentic coding and cyber defense is now available to download, run, and customize. Weights: huggingface.co/zai-org/GLM-5.3 Tech blog: z.ai/blog/glm-5.3