Zhipu Open-Sources GLM-5.3 Model Weights, Focusing on Agentic Coding and Cyber Defense

August 29 news, according to IT Home, Zhipu officially announced last night the open-sourcing of GLM-5.3 model weights, now available for download, supporting local deployment and personalized customization. The model excels in complex coding, defensive cybersecurity, and long-horizon tasks. It scored 60 points on the AA Comprehensive Intelligence Index, on par with closed-source flagships such as Claude Fable 5 and GPT-5.6 Sol, and tied with Kimi K3 for first place among open-source models. Security review is only required when institutions with annual revenue exceeding $10 billion offer it as an external model service.