
GLM-5.3 Marks a Critical Shift as Open-Weight AI Models Cross Cybersecurity Thresholds
Anthropic reports that Zhipu AI's GLM-5.3 is the first open-weight model capable of autonomously building end-to-end cyber exploits without effective safeguards. While its capabilities match Anthropic's restricted 'Claude Mythos Preview,' GLM-5.3 is freely downloadable and its safety filters can be easily bypassed, significantly lowering the barrier for malicious cyberattacks.

