Regulation & Ethics Jun 30, 2026 · 1 min read · Redação MaxAssistant

US government lifts export controls on Fable 5 and Mythos 5

On June 30, the US Department of Commerce lifted the export controls placed on Fable 5 and Mythos 5, closing out the episode that began on June 12.

The outcome

On June 30, 2026, the US Department of Commerce lifted the export controls that had suspended access to Fable 5 and Mythos 5, ending a roughly three-week standoff between Anthropic and the US government.

A gradual reopening

Before the full reversal, the government had already signaled a partial easing on June 26, allowing some companies and government agencies to regain access to Mythos 5.

What it leaves behind

The episode showed, in practice, how export controls — historically applied to hardware and military technology — can also be used on frontier AI models, a precedent other companies in the sector should watch closely.