U.S. Lifts Export Restrictions on Anthropic's Mythos and Fable AI Models

The United States has removed the export-license requirement that had barred Anthropic from offering its Mythos and Fable artificial-intelligence models to users abroad. The AI lab said it will begin restoring access to both models on July 1.

The restriction, added on June 12, placed the models on a list of export-controlled technologies, effectively ending public availability because compliance was impractical at scale. After weeks of negotiations, Secretary of Commerce Howard Lutnick announced that Anthropic has agreed to proactively detect and address security risks, cooperate with the government on protocols and standards for current and future models, and report any malicious activity.

Anthropic had previously pledged to implement many of these safeguards voluntarily, a point noted by cybersecurity experts who questioned the initial ban. The models were initially released to limited audiences—Mythos to select organizations in April and Fable to the public in June with added security guardrails—amid concerns about their capability to identify software vulnerabilities.

The policy shift also reflects pressure on Washington as Asian AI firms launch models with capabilities comparable to Mythos, prompting the U.S. to ensure its AI sector remains competitive. Earlier, Lutnick cleared Mythos for distribution to a group of customers approved by the White House, and OpenAI’s latest models were similarly made available to a select set of organizations.