▲ Anthropic
The U.S. government's decision to restrict foreign users from accessing Anthropic's latest artificial intelligence models, "Mythos 5" and "Fable 5," was prompted by a tip from Amazon, a key investor in the company.
According to a report by The Wall Street Journal on June 13 (local time) citing multiple sources, Amazon CEO Andy Jassy informed government officials that he had discovered the "Fable 5" model could be exploited for cyberattacks, leading the government to issue the blocking directive.
Although Fable 5 was designed to block prompts related to cybersecurity threats or biochemical weapons, Amazon researchers reportedly bypassed these safeguards by inputting a specific sequence of commands.
After verifying Amazon's claims, the U.S. government concluded that the most direct way to mitigate these risks was to block access by foreign governments, companies, and individuals.
A senior White House official stated that President Donald Trump gave the final approval for these measures.
The Wall Street Journal also analyzed that the ongoing legal disputes between Anthropic and the U.S. administration, including the Department of Defense, may have influenced the decision.
Previously, on June 12, the U.S. government announced export control guidelines that completely banned all foreign nationals from accessing "Fable 5" and "Mythos 5."
To comply with these guidelines, Anthropic suspended access to the models for all users, while stating that claims regarding the ability to bypass Fable 5 were a misunderstanding and that it would work to restore service.
Amazon is a key investor in Anthropic, having invested a total of $13 billion (approximately 20 trillion Korean won) since 2023.
(Photo: Yonhap News)
※ Please note: This article was translated by AI and may contain errors.