The US government has reversed export restrictions on Anthropic’s frontier AI models Fable 5 and Mythos 5, allowing the company to resume global access after nearly three weeks of disruption triggered by concerns over the models’ cybersecurity capabilities.
“As of today, June 30, the export controls on Fable 5 and Mythos 5 have been lifted,” Anthropic said in a blog post. The company said Fable 5 will begin rolling out globally on July 1 across Claude Platform, Claude.ai, Claude Code and Claude Cowork, while access on Amazon Web Services, Google Cloud, and Microsoft Foundry will be restored “as quickly as possible.”
Commerce Secretary Howard Lutnick said the administration had worked with Anthropic before reversing the restrictions.
“Over the past two weeks, we have worked closely with Anthropic to analyze and approve Fable 5 to ensure alignment across the US Government and strengthen America’s leadership in AI,” Lutnick wrote in a post on X.
Anthropic had launched Fable 5 and Mythos 5 on June 9, and the US authorities restricted their export on June 12.
