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US barring foreign nationals, including Anthropic staffers in the US, from using Fable 5 and Mythos 5 marks a new phase in the US trying to control Anthropic (New York Times)

The U.S. government has mandated that Anthropic restrict access to its advanced AI models, Fable 5 and Mythos 5, for foreign nationals, including its own international staff, due to national security concerns. This directive represents a significant escalation in governmental control over AI technologies and their usage.

US barring foreign nationals, including Anthropic staffers in the US, from using Fable 5 and Mythos 5 marks a new phase in the US trying to control Anthropic (New York Times)

WPN Brief

  • What Happened

    The U.S. government has mandated that Anthropic restrict access to its advanced AI models, Fable 5 and Mythos 5, for foreign nationals, including its own international staff, due to national security concerns. This directive represents a significant escalation in governmental control over AI technologies and their usage.

  • Why It Matters

    This development is critical for Anthropic as it directly impacts its operational capabilities and market reach, potentially hindering its competitive edge in the AI sector. The company must navigate these restrictions while addressing the implications for its workforce and user base.

  • The Bigger Picture

    This situation highlights ongoing tensions between national security interests and the global tech landscape, raising questions about the balance of innovation and regulation. The move has sparked discussions about the risks of dependency on U.S. technology and the broader implications for international collaboration in AI development.

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Anthropic says it is disabling Fable 5 and Mythos 5 for all customers after the US government issued an export control order, citing national security concerns (Anthropic)

Anthropic has announced the disabling of its AI models, Fable 5 and Mythos 5, for all customers following a directive from the US government that cited national security concerns. This decision comes after the government issued an export control order, leading to immediate suspension of access to these advanced AI technologies.

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Anthropic says it believes the US government's export control order for Mythos 5 and Fable 5 is a "misunderstanding" and that it is working to restore access (Ananya Palyekar/Reuters)

Anthropic has been ordered by the U.S. government to suspend access to its advanced AI models, Mythos 5 and Fable 5, for all foreign nationals, citing national security concerns. The company believes this directive is a misunderstanding and is actively working to restore access.

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European political figures say Anthropic disabling access to Fable 5 and Mythos 5 is a "wake-up call" about the risks of depending on the US for AI tech (Nathan Rennolds/Associated Press)

Anthropic has announced the disabling of its advanced AI models, Fable 5 and Mythos 5, following a directive from the US government citing national security concerns. This decision has raised alarms among European political figures, who view it as a significant warning regarding the risks of relying on US technology for AI development.

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Anthropic to disable its most advanced AI models after US order limiting foreign access

Anthropic announced it will abruptly disable its most advanced AI models, Fable 5 and Mythos 5, for all users following a US government order that restricts access for foreign nationals due to national security concerns. The company stated that it was not provided with specific details regarding these concerns.

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Source: Howard Lutnick told Anthropic that Mythos 5 and Fable 5 would be subject to export controls after a company claimed it was able to jailbreak Mythos (Axios)

Howard Lutnick informed Anthropic that its AI models, Mythos 5 and Fable 5, will be subject to export controls following claims from a company that it successfully jailbroke Mythos. This decision comes amid increasing scrutiny over the security and accessibility of advanced AI technologies.

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U.S. Bars Foreigners From Using Anthropic’s Most Advanced A.I. Models

The U.S. government has mandated that Anthropic restrict access to its advanced AI models, Mythos and Fable 5, for foreign users due to national security concerns, particularly regarding the potential misuse of these technologies to compromise computer networks. This directive was announced on June 13, 2026, and affects all users globally.

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US government orders Anthropic to kill Fable 5 and Mythos 5 in unprecedented AI model recall

The US government has mandated Anthropic to suspend access to its advanced AI models, Fable 5 and Mythos 5, marking an unprecedented intervention in the commercial AI sector. This directive, received on June 12, cites national security concerns and aims to prevent potential misuse of these technologies.

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