1 AI Catchup article about Model Availability, newest first: 1 news story.
A US export control directive forced Anthropic to disable Claude Fable 5 and Mythos 5 for all customers on June 12, 2026. The controls were lifted June 30 and Fable 5 returned globally July 1 with a new safety classifier. As of September 2026 both models are active, and Fable 5.1 is the current Fable model.
Tools, practices, and what matters, in your inbox every week.
