Anthropic’s Claude Fable 5 and Mythos 5 AI suspended over security fears BBCUS orders Anthropic to halt foreign access to its most advanced AI models Australian Broadcasting CorporationAnthropic disables access to Fable 5 and Mythos 5 to comply with government directive CNBCAnthropic Halts Access to Top AI Models After U.S. Ban on Foreign Use WSJAnthropic shuts down newest AI model after U.S. bans foreign use The Washington Post