GLM-5.3 and Open-Weight Exploit Development | 7AI

TLDR; Anthropic’s analysis of Zhipu AI’s GLM-5.3 is the first public measurement of frontier-class exploit development arriving in a freely downloadable model. Weaponizing a new vulnerability, long the most expensive step in an attack, is now cheap. The post-breach posture defenders already built still holds, provided response moves from hours to minutes.