On Friday evening, the U.S. government directed Anthropic to bar foreigners from accessing the AI company’s latest and most powerful models, the company said.
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Anthropic, the company behind the popular Claude chatbot, said that in order to comply with the directive, Fable 5 and Mythos 5 would be inaccessible to all customers, not just foreigners.
“The U.S. government, citing national security officials, has issued an export control directive that halts all access to Fable 5 and Mythos 5 by foreign nationals, both inside and outside the United States, including Anthropic’s foreign employees,” the company said in a statement posted online late Friday night.
letter giving instructions The document was sent by Secretary of Commerce Howard Lutnick and was written with the assistance of officials from the Department of Commerce’s Bureau of Industry and Security, administration officials said.
Anthropic released Fable 5 and Mythos 5 on Tuesday, touting the new models as the most powerful AI systems it has ever shared. The company said these AI models are powerful enough to merit strict safety guardrails to prevent malicious or dangerous use.
“Releasing a model with this much functionality comes with risks. Without safeguards, Fable 5’s capabilities in areas such as cybersecurity could be misused to cause significant damage,” Anthropic said in a statement Tuesday.
Both models are built on the same technology foundation, but only Fable 5 has been released to the public. The Fable model includes stronger constraints on the types of questions users can ask, especially regarding issues related to cybersecurity and biology. Mythos 5, on the other hand, was released without such safeguards to a select group of trusted partners, including major cybersecurity and infrastructure companies.
