Anthropic Takes Fable 5 and Mythos 5 Offline After US Directive

Summary

Anthropic said it took its Fable 5 and Mythos 5 AI models offline after a US directive aimed at preventing foreign nationals from using them. The company cited cybersecurity fears but said the directive did not specify the national security concerns.

Key points

Anthropic said it took Fable 5 and Mythos 5 offline after receiving a US government directive Friday.
The directive sought to prevent foreign nationals from using the models; Anthropic said the government did not specify the national security concerns.
Anthropic called the action a misunderstanding, disagreed with how the government handled it, and said it hopes to restore access soon.
The move followed an executive order establishing a voluntary framework for federal review of national security risks from advanced AI systems before public release.

Article Details

Event Type: Anthropic took its Fable 5 and Mythos 5 AI models offline in response to a U.S. government export-control directive.
Impact: The directive is intended to prevent foreign nationals from using the models. Anthropic said it received the directive on Friday and hoped to restore access as soon as possible. The article reports that access to Mythos had already been tightly limited because of cybersecurity fears.