The U. S.
Commerce Department authorized Anthropic on Tuesday to restore public access to its advanced Fable 5 artificial intelligence model.
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The model had been offline for two weeks due to national security concerns.
Commerce Secretary Howard Lutnick informed Anthropic co-founder Tom Brown of the decision in a letter.
The company agreed to share updates on malicious activities and future models.
Lutnick also posted on social media platform X about the resolution.
“Over the past two weeks, we have worked closely with Anthropic to analyze and approve Fable 5 to ensure alignment across the US Government and strengthen America’s leadership in AI,” he wrote.
Fable 5 was pulled offline on June 12 alongside Mythos 5 after export controls were threatened to prevent foreign access.
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Anthropic had built specialized safety measures into Fable 5 to halt dangerous cyber and biological tasks.
However, administration officials feared users could bypass those guardrails.
Following intense negotiations in Washington D. C.
, federal officials allowed the sibling Mythos 5 model to return on Friday for limited use by approximately 100 trusted infrastructure organizations.
The temporary freeze raised anxieties among tech executives who feared the strict regulatory approach would hinder domestic competitiveness against international rivals like China.
OpenAI CEO Sam Altman commented on the regulatory discussions, calling the situation “bad news.”
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The regulatory intervention follows a voluntary early-access vetting framework established by a presidential executive order targeting AI cybersecurity risks earlier this month.
