US government export controls citing national security concerns triggered Anthropic's abrupt global suspension of Claude Fable 5, its most advanced large language model with enhanced agentic capabilities, just days after the June 9 public launch. The directive targeted foreign nationals, but Anthropic disabled access for all users—including US customers—because real-time filtering proved impractical, routing queries to weaker models like Opus 4.8 instead. Ongoing high-level talks with the White House reflect unresolved tensions over potential guardrail bypasses and model power, while the company publicly calls the move a likely misunderstanding and works toward restoration. Traders are watching for any policy carve-out or technical fix that could quickly reopen US access amid competitive pressure from other frontier AI labs.