US Lifts Export Ban on Anthropic AI Models but Retains Right to Re-Impose Restrictions

The US government lifted an export ban on Anthropic's Claude Fable 5 and Mythos 5 AI models. Anthropic said it will begin restoring access on Wednesday after receiving notification from the Department of Commerce that restrictions have been removed. The models were suspended worldwide on June 12, three days after their release on June 9.

The suspension followed concerns that the tools could be used by hackers to exploit weaknesses in computer systems. Commerce Secretary Howard Lutnick wrote in a letter to Anthropic that the company has addressed the risks. "Anthropic has agreed to proactively detect and address security risks associated with the models," Lutnick stated.

The firm also agreed to collaborate on future releases of its AI models and to alert the government of any malicious activity. The Commerce Department reserves the right to reconsider its decision to lift the restrictions if necessary. Fable 5 is a consumer-market version of the Claude platform capable of deep reasoning and performing complex tasks independently.

Mythos 5 is a business- and cybersecurity-focused version designed to identify vulnerabilities in computer code and exploit them. Both models are built on Anthropic's Claude platform. Anthropic previously stated that US authorities had not pinpointed specific concerns about its technology.