US lifts export ban on Anthropic's advanced AI tools

The US government has lifted export controls on Anthropic's most advanced artificial intelligence tools, the company announced. Just weeks earlier, on June 12, access to these models was abruptly suspended over national security concerns that hackers could exploit them to target computer system vulnerabilities.

Anthropic said in a social media post that it will begin restoring access to Claude Fable 5 and Mythos 5 on Wednesday after being notified that the US Department of Commerce has lifted export controls on the two models. The BBC has contacted the Department of Commerce for comment.

Mythos and Fable are two of Anthropic's AI models built on its Claude platform, a rival to OpenAI's ChatGPT and Google's Gemini. Fable 5 is a version for the consumer market capable of deep reasoning and performing complex tasks independently. Mythos 5 is a version designed for businesses and cybersecurity experts, said to identify and exploit vulnerabilities in computer code.

The company previously stated that US authorities had not pinpointed specific concerns about its technology even as it ordered both platforms suspended worldwide. "Our understanding is that the government believes it has become aware of a method of bypassing, or 'jailbreaking' Fable 5," the company said at the time, referring to bypassing software safety restrictions. "However, we disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people."