The US government has restricted foreign access to Anthropic's latest AI models, Fable 5 and Mythos 5, citing national security concerns.

Washington has ordered Anthropic – a leading entity in America’s AI sector – to block all foreign nationals from accessing its latest models, Fable 5 and Mythos 5, citing national security concerns, according to the Silicon Valley-based firm. The unprecedented export-control measure – the first to target specific AI models – came just days after Anthropic released the models, underscoring Washington’s increasingly hands-on approach to regulating frontier artificial intelligence...