Breaking! Anthropic globally disables Claude 5

Why on earth did Anthropic suddenly take the world's most powerful Claude offline?

[Introduction] Just 72 hours after its launch, the most powerful Claude Fable 5 was globally taken off the shelves by a single order, and even Anthropic's foreign employees were not allowed to access it.

It's so sudden!

Just now, Anthropic officially announced —

Global ban on all access to Claude Fable 5 and Mythos 5 by foreign nationals.

Whether inside or outside the United States, even Anthropic's foreign employees are not allowed to use them.

Claude Fable 5, which had only been launched for 3 days, disappeared in an instant.

Global ban on all access to Claude Fable 5 and Mythos 5 by foreign nationals

For a moment, the entire internet was in an uproar. The big names in the AI circle were shocked and expressed their confusion.

Netizens' comments

Netizens' comments

Why on earth did Anthropic suddenly take the world's most powerful Claude offline?

Global ban on Claude 5

At 5:21 p.m. on June 11, a letter from the US government was delivered to Anthropic.

That night, Fable 5 and Mythos 5 were completely shut down for all users.

Fable 5 and Mythos 5 were completely shut down for all users

This is the first time in AI history that a commercial large model deployed to hundreds of millions of people has been forcibly recalled by the US government.

The US government cited national security powers and issued an export control order, requiring the suspension of all foreign access to Fable 5 and Mythos 5 —

Whether inside or outside the United States, including Anthropic's foreign employees.

The actual effect of this order is that we must immediately disable Fable 5 and Mythos 5 for all customers to ensure compliance.

Note this detail — the ban is aimed at "foreigners", but Anthropic's response is a complete shutdown.

Fortunately, other Claude models are not affected for the time being.

Netizens' comments

On June 9, Anthropic officially released Claude Fable 5. From its release to recall, it was only 72 hours.

What really frustrated Anthropic is that the letter did not provide any specific details of national security concerns.

The letter did not provide specific details of its national security concerns.

Our understanding is that the government believes it has mastered a method to bypass or "jailbreak" Fable 5.

Claude's official tweet stated that in all Claude products, new conversations will run using the default model or Opus 4.8, while existing Fable 5 conversations will report errors and be terminated.

On the Claude platform, requests to call Fable 5 will also return errors.

Therefore, they reminded, "Update the integration and switch to other Claude models."

In all Claude products, new conversations will run using the default model or Opus 4.8

Finally, the blog mentioned that they are currently working hard to restore access as soon as possible.

Blog content

Official statement

The following is the original text of Anthropic's official statement:

Anthropic's official statement

Reference materials:

https://www.anthropic.com/news/fable-mythos-access

https://x.com/AnthropicAI/status/2065597531644743999?s=20

Editor: Taozi

This article is from the WeChat official account "New Intelligence Yuan". Author: ASI Revelation. Republished by 36Kr with authorization.