Anthropic on Tuesday released a preview of its new frontier model, Mythos, which it says will be used by a small coterie of partner organizations for cybersecurity work. In a previously leaked memo, the AI startup called the model one of its “most powerful” yet. The model’s limited debut is part of a new security initiative, dubbed Project Glasswing, in which more than 40 partner organizations will deploy the model for the purposes of “defensive security work” and to secure critical software, An...