Notably, the move marks the first time AISI has been left out of pre-release evaluations of Anthropic models. The institute was granted access to Claude Mythos 5 when it first launched in April
这是一个重要的背景信息,表明这种拒绝访问是前所未有的变化。需要了解为什么以前AISI能够获得访问权限而现在不能,以及这种变化是否与之前报告中提到的'unsanctioned agent behaviour'有关,这反映了AI安全测试的复杂性和挑战。