[Zhipu Open-Sources GLM-5.3 Model Weights, Focused on Intelligent Programming and Network Defense] According to IT Home, Zhipu officially announced last night the open-sourcing of the GLM-5.3 model weights, which are now available for download, supporting local deployment and personalized customization. This model excels in complex coding, defensive cybersecurity, and long-range tasks. It achieved a score of 60 on the AA Comprehensive Intelligence Index, placing it on par with closed-source flagships such as Claude Fable 5 and GPT-5.6 Sol, and tied for first among open-source models with Kimi K3. Security reviews are only required when institutions with annual revenues exceeding $10 billion use it as an external model service provider.