The US government has banned worldwide access to Anthropic’s most advanced AI models, Fable 5 and Mythos 5, citing national security concerns. The export control directive, issued Friday June 12, 2026 at 5:21 PM ET, forces Anthropic to disable both models for all users because the company cannot verify nationality …
Editorial team 
Anthropic Launches Fable 5: Public Mythos-Class Model
Anthropic launched Claude Fable 5 and Claude Mythos 5 today — a Mythos-class model that tops nearly every benchmark. Fable 5 is available to the public via API and Amazon Bedrock at $10/M input and $50/M output tokens, less than half the price of Mythos Preview. Mythos 5, the unrestricted …