Three days after Anthropic launched what it called the most powerful model ever, the US government forced it offline — for every user, worldwide. Here's the full story: the jailbreak that may have triggered it, the legal questions it opens, and why the backlash is coming from both sides of the AI debate.

AI-generated (NotebookLM) audio overview. Source: HexLocal in-house research — Research - Fable 5 Government Suspension and Fallout - 2026-06-13 (Dr. Priya Nair).

- The Commerce Department issued an export-control directive on June 12 barring access for any foreign national — forcing Anthropic to pull Fable 5 and Mythos 5 offline entirely, for everyone, worldwide

- The likely catalyst: jailbreaker "Pliny the Liberator" posted a claimed system-prompt leak hours after launch; the government cited a narrow code-review technique Anthropic says is available from multiple other models

- Anger is running in both directions — civil-liberties and acceleration voices call it unconstitutional overreach, while safety skeptics say Anthropic's own "too dangerous" marketing invited exactly this outcome

- Legal analysts are flagging this as a potential First Amendment test case and a precedent that could halt future frontier model launches across every lab

- Customers who upgraded to paid tiers for a free trial window got a chaotic refund experience, with App Store users, Max-tier subscribers, and desktop users all hitting different dead ends

- The 72-hour arc — record-breaking launch to federally mandated dark — is the precedent: one reported jailbreak can now trigger a recall