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The Verge AI
June 13, 2026
Regulation & Policy

Anthropic cuts off Fable 5 and Mythos 5 access following government order

Overview

Anthropic has ceased access to its AI models Fable 5 and Mythos 5 for all foreign nations following a government order citing national security concerns. The company stated that while they are complying with the order, they were not given specific details about the concerns raised by the government.

Key Takeaways

  • Anthropic has blocked access to Fable 5 and Mythos 5 for all foreign nations due to a government order.
  • The order affects all customers, including Anthropic employees.
  • The government did not provide specific details about the national security concerns.
  • Anthropic claims that evidence of potential vulnerabilities was communicated verbally.
  • The vulnerabilities identified were described as minor and also present in other models.
Anthropic cuts off Fable 5 and Mythos 5 access following government order

Government Order Details

The recent government order has significant implications for Anthropic's operations.

  • The order was issued on Friday evening, emphasizing immediate compliance.
  • It applies to all foreign nations, both inside and outside the US.

The directive from the government has led to a complete cut-off of access to Fable 5 and Mythos 5. This action is part of broader national security measures that the government is implementing to safeguard sensitive information.

Anthropic's Response

In light of the order, Anthropic has issued a statement regarding the situation.

  • Anthropic has stated that it is complying with the government order.
  • The company expressed concerns over the lack of specific details provided by the government.

In their statement, Anthropic mentioned that the government did not elaborate on the specifics of the national security concern. This lack of transparency raises questions about the nature of the threats that prompted such drastic measures.

Concerns Over Vulnerabilities

The government cited potential vulnerabilities as a reason for the order.

  • Anthropic claims that any evidence of vulnerabilities was communicated verbally.
  • The identified vulnerabilities were described as minor.

According to Anthropic, the vulnerabilities in question were not unique to their models and could also be found in other AI systems. This suggests that the concerns may extend beyond just Fable 5 and Mythos 5.

Impact on Customers

The order's implications extend to Anthropic's customer base.

  • All customers, including employees, have lost access to the models.
  • This cut-off could affect ongoing projects and research that rely on these AI models.

The abrupt loss of access to Fable 5 and Mythos 5 may disrupt various applications and research initiatives that utilize these advanced AI tools. Customers will need to seek alternatives or adjust their strategies in light of this development.

The Bigger Picture

This incident reflects broader concerns regarding AI and national security.

  • The order highlights the government's increasing scrutiny of AI technologies.
  • National security concerns are becoming a common reason for restricting access to technology.

As AI continues to evolve, governments around the world are grappling with how to manage the associated risks. This situation with Anthropic underscores the delicate balance between innovation and security that tech companies must navigate.

Frequently Asked Questions

Why did the government order Anthropic to block access?

The government cited national security concerns as the reason for the order.

Who is affected by the access cut-off?

The cut-off affects all customers of Anthropic, including its own employees.

What did Anthropic say about the vulnerabilities?

Anthropic stated that the vulnerabilities were minor and that evidence of them was communicated verbally by the government.

How might this affect Anthropic's customers?

Customers may face disruptions in their projects and may need to find alternative solutions due to the loss of access to the models.

What does this incident indicate about AI regulation?

This incident reflects a growing trend of government scrutiny over AI technologies in relation to national security.

The situation highlights the ongoing tension between technological advancement and security measures.

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Originally published by The Verge AI
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