Two weeks after Anthropic pulled back its frontier AI models Claude Fable 5.0 and Claude Mythos 5.0 on the directives of U.S. government that cited “national security concerns”, the AI company announced Saturday that it has been allowed to re-deploy Mythos 5 model to a set of U.S. organizations.
According to a statement released by Anthropic on X, the U.S. government has partially lifted export control over Claude Mythos 5 model to organizations that operate and defend critical infrastructure.
According to a report in Reuters, access to Claude Mythos has been granted to over 100 U.S. organizations including foreign employees (non-American) employed at these companies.
On June 12, the U.S. government had put export control, prohibiting access to Claude Fable 5 and Claude Mythos 5 frontier AI models of Anthropic to “non-Americans” citing national security.
“Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure.
We’re restoring access for these organizations quickly, and we’re continuing to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again,” read a statement by Anthropic.
Days after the U.S. government prohibited access to Claude Fable 5 and Claude Mythos 5 to all non-American nationals including foreign employees of Anthropic, David Sacks, chair of president’s council of advisors on science and technology said that it was the “jailbreaking” or lack of safety measures in Fable AI model that led to the ban.
While the company said that it will comply with the government’s order, it argued that the reported jailbreak vulnerability was limited and cannot be a cause for recalling a commercial model deployed to hundreds of millions of people. It warned that if this standard was applied across the industry, then it would halt all new model deployments for all frontier model providers.
Recently, Anthropic CEO Dario Amodei issued an essay titled “Policy on the AI Exponential” in which he urged policymakers to speed up the regulation to deal with the risks and opportunities arising from the exponential growth of artificial intelligence.
Following the US government’s suspension order, the company argued that as per its recent suggested policy the government should have the ability to block unsafe deployments, as part of a statutory process that is transparent, fair, clear, and grounded in technical facts, but this action does not adhere to its principles.
Also Read: US Govt Asks Anthropic To Suspend Fable 5 and Mythos 5 Access For Foreign Nationals






