US lifts restrictions on Anthropic’s Fable‑5 and Mythos‑5 AI models

The United States has lifted export restrictions on Anthropic’s advanced AI systems Fable‑5 and Mythos‑5, clearing the way for the company to restore global access to its most powerful models. Anthropic confirmed that the Department of Commerce has officially removed the controls, allowing the models to be released worldwide starting tomorrow.

The restrictions were imposed earlier in June after US authorities identified vulnerabilities in the safeguards designed to prevent misuse of the high‑capability AI systems. The government ordered Anthropic to cut off access to both models on June 12, citing national security concerns. According to reports, Commerce Secretary Howard Lutnick informed the company on June 26 that Anthropic had worked with the government to address the risks associated with the models.

The temporary suspension was part of Washington’s broader effort to regulate the release of frontier‑level AI systems. Rival AI lab OpenAI has also complied with similar US directives, limiting the rollout of its new GPT‑5.6 model to a small group of approved partners. OpenAI CEO Sam Altman acknowledged that the process was “not optimal,” but said the company would follow government requirements.

US intelligence officials have increasingly warned about the potential misuse of advanced AI. CIA Director John Ratcliffe recently compared the capabilities of cutting‑edge AI models to nuclear weapons, defending the administration’s hard line on controlling their distribution.

With restrictions now lifted, Anthropic is preparing to restore access to Fable‑5 and Mythos‑5 globally, marking a significant shift in US AI policy and opening the door for wider international deployment of the company’s most advanced systems.

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