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First reported by Hacker News
US Government Orders Anthropic to Suspend Fable 5 and Mythos 5 Access Under National Security Directive

Anthropic blocks foreign access to top AI models after US national security order

By

Nik Martin

3h ago· 3 min readenNews

Summary

Anthropic has cut access to its two most powerful AI models (Fable 5 and Mythos 5) following a US government order citing national security concerns. The order requires blocking foreign nationals from accessing these models. This marks an escalation in tensions between Anthropic and the Trump administration after failed negotiations over potential US military and intelligence use of the technology. The block could significantly impact Anthropic's plans for an IPO later this year.

Key quotes

· 4 pulled
Anthropic said Friday it has cut access to two powerful artificial intelligence (AI) models after a United States government order citing national security concerns.
The sudden block marks a major escalation in Anthropic's growing showdown with the Trump administration after failed negotiations earlier this year over potential US military and intelligence use of its technology.
The order is potentially a major setback for Anthropic's plans to take the company public later this year.
The firm said it was ordered to block foreign nationals from accessing its state of the art Fable 5 and Mythos 5 AI models on national security grounds.
Snippet from the RSS feed
The firm said it was ordered to block foreign nationals from accessing its state of the art Fable 5 and Mythos 5 AI models on national security grounds.

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