USA raises restrictions on the most powerful AIs in Anthropic

USA raises restrictions on the most powerful AIs in Anthropic

Washington lifted the restrictions that had forced Anthropic to block access to the two most powerful models, announced the leading U.S. artificial intelligence (IA) company, which is now beginning to restore access.

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01/07/2026
by

Lusa

“Rwe have received the notification that the Department of Commerce lifted export controls on Claude Fable 5 and Mythos 5′′, imposed on behalf of national security, declared Anthropic on the social network X on Tuesday.

 

“ We will start restoring access tomorrow [today]”, he added.

On June 12, the U.S. Government abruptly forced Anthropic to block access to these two cutting-edge models, considering that failures had been detected in security measures aimed at preventing misuse for cyberattack purposes.

Anthropic? Restrictions reinforce the need for “technological sovereignty”

The European Commission today stated that Anthropic’s decision to suspend public access to its most advanced artificial intelligence models, Fable 5 and Mythos 5, reinforces the need for the Union to strengthen its “technological sovereignty”.

Lusa

This forced withdrawal, an unprecedented situation by a government, sparked a wave of worldwide criticism, rekindling the debates on the digital sovereignty of countries dependent on US technologies.

After close negotiations in Washington, about which few details were released, access to Mythos 5 was unlocked on Friday for a small group of “ciberdefensors and infrastructure operators”, but only Americans.

Foreign partners, including state cybersecurity agencies in Europe and Asia, were still without access at this stage. Anthropic, with turbulent relations with the Trump Administration, did not clarify whether the lifting of export control implied the reintegration of these non-American partners.

Japan asks US explanations after restrictions on access to AI models

Japan's finance minister Satsuki Katayama asked the United States for explanations about the decision of the US company Anthropic to suspend access to its most advanced artificial intelligence (IA) models.

Lusa

Tuesday's decision allows the online return, as of today, of Fable 5, a version aimed at the general public of Mythos, with cybersecurity restrictions and risks of biological and chemical attacks.

OpenAI, Anthropic's American rival, launched on Friday the company's most powerful model to date, the GPT-5.6, initially with limited access, accepting, for the first time, that the US Government validates, customer to client, the authorized partners.

For a long time hostile to any AI regulation, accused of being an obstacle to innovation against China, the Trump administration initiated a radical twist, taking into account the powerful capabilities of cutting-edge models.

Anthropic? Restrictions reinforce the need for “technological sovereignty”

The European Commission today stated that Anthropic’s decision to suspend public access to its most advanced artificial intelligence models, Fable 5 and Mythos 5, reinforces the need for the Union to strengthen its “technological sovereignty”.

Lusa

Recent decisions in this area, taken in a still unclear and controversial legal framework, mark a resumption of government control over this crucial technology.

On Tuesday, the director of the Central Intelligence Agency (CIA), John Ratcliffe, compared the capabilities of the most advanced AI models to “digital nuclear weapons”, in a rare public intervention in Washington.

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