The Trump administration ordered Anthropic to block all foreign nationals from its AI models, a directive so broad it swept in US-based foreign nationals and Anthropic's own employees. Anthropics newest models, Fable 5 and Mythos 5, were taken offline for every user worldwide while the company fought to restore access. The incident exposes deep ambiguity in applying Cold War-era export control law to cloud-based AI services.
A Claude status incident states that access to Claude Mythos 5 and Claude Fable 5 has been suspended. No article body or additional explanation was provided, so the reason, affected users, duration, and operational impact are not specified. The item should be treated as a service-access incident involving Claude-branded models until more official details are available.