Z.ai says GLM-5.3 scores 84.5% on CyberGym, vs. Mythos 5's 83.8%, and its most sensitive cybersecurity functions will only be available to verified users (Reuters)

Chinese AI startup Z.ai announced that its open-source GLM-5.3 model achieved a score of 84.5% on CyberGym, closely trailing Anthropic's restricted Mythos 5, which scored 83.8%. Z.ai also stated that the most sensitive cybersecurity functions of GLM-5.3 will be exclusively accessible to verified users, indicating a focus on security and controlled access for advanced features.