Anthropic's Claude Fable 5 and Mythos 5 AI suspended over security fears

Anthropic's Claude Fable 5, released publicly this week, sparked concerns about cybersecurity and hacking.

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In a statement published on its website, Anthropic said it was ordered to suspend foreign nationals from using Claude Fable 5, a program that the company self-described as "too powerful".

"The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance," the company wrote.

Anthropic and the Trump administration are involved in a separate ongoing lawsuit over an order to stop government agencies using the company's AI tools. The BBC has approached the US Department of Commerce for comment.

Claude Fable 5 is a version of Anthropic's Claude Mythos, an AI program rivalling competitors OpenAI's ChatGPT and Google's Gemini.