On June 12, 2026, Anthropic stated that the U.S. government had directed it to suspend access to Claude Fable 5 and Claude Mythos 5 by foreign nationals, whether located inside or outside the United States, including Anthropic’s own foreign national employees. In response, Anthropic disabled access to those models for all customers. Anthropic said its other models, including Claude Opus 4.8, remain available.
AI Company Anthropic Suspends Access to Claude Fable 5, Claude Mythos 5 Following US Export Control Directive