Anthropic's Frontier Red Team analyzes GLM-5.3, an AI model from Zhipu AI that autonomously builds cyber exploits with capabilities matching Claude Mythos Preview. Unlike safeguarded US models, GLM-5.3 was released publicly without meaningful safeguards, allowing attackers to bypass them 64-100% of the time, significantly increasing malicious cyber capabilities while also benefiting defenders.
Physicist Matt von Hippel challenged AI companies to solve a hard problem in theoretical physics: computing scattering amplitudes in N=4 super-Yang-Mills theory to nine loops using academic computing resources. Claude reportedly solved this long-standing problem in amplitudeology, demonstrating that computational limits previously thought insurmountable could be overcome with AI-assisted research.