Zhipu AI released GLM-5.3 on ZCode and it scored 84.5 points on CyberGym, scoring above Mythos 5 and GPT-5.6 Sol&#33;

> Trained on top of a 743B base model. 
> Build for Cyber Defence and Coding tasks. 
> “API access and open weights will be released in stages following rigorous safety evaluations.”