red-teaming 
When the Government Pulls a Model: The Fable 5 / Mythos 5 Export-Control Suspension
On June 12, 2026, a US government directive forced Anthropic to abruptly disable Claude Fable 5 and Mythos 5 for all customers. A careful, source-verified account of what actually happened — separating the confirmed facts from Anthropic’s characterization, and from the jailbreak-research claims that are not yet independently established.