On June 13, a US government export control directive forced Anthropic to act fast. Every foreign national lost access to Fable 5 and Mythos 5 right away. Existing contracts or agreements could not change the sudden restriction, which applied worldwide. The move highlighted today’s volatile regulatory landscape for generative AI in the country. Policy watchers say this abrupt shift means ongoing uncertainty for model launches, according to NBC News.
Earlier in the week of June 10, 2026, Anthropic debuted Claude Fable 5 and Mythos 5. According to Resetera, the launch was limited to select, approved companies and not the public. This restricted rollout was a planned safety step under Project Glasswing. Such a measure aimed to limit distribution to partners and reduce risks. Anthropic has said that releasing high-capability models brings serious risks. The company still faces the challenge of balancing safety and growth. The abrupt government directive demonstrates the increasing unpredictability of AI launches in the US.
Immediate disruption after US government order
At 5:21pm ET on June 13, Anthropic got the US mandate to halt access. The company had only hours to react and comply with the order. All foreign nationals, including those inside the US, were included in the ban. Friday night, Fable 5’s site displayed “Fable 5 is temporarily unavailable,” per NBC News. Before this, Fable 5 and Mythos 5 supported select partners for Project Glasswing’s cybersecurity aims.
Policy tensions and ongoing government scrutiny
Current policy essays by CEO Dario Amodei stress a need for clear oversight. Anthropic supports structured and open government supervision for model safety, reports Wired. Despite this, the latest suspension deepened scrutiny over Anthropic’s regulatory standing. Resetera reports the Department of Defense labeled the company a supply chain risk after failed security talks. Now, Anthropic is in ongoing litigation against the Trump administration to reverse blacklisting.
Executive orders and export control trends
On June 2, 2026, then-President Trump signed an executive order targeting advanced AI models. That order aimed to increase US control and restrict overseas use, per NBC News. Federal agencies got new power to stop deployment abroad if national security was at risk. Only a few days later, Fable 5 and Mythos 5 began private partner testing. The models were launched, embargoed, then quickly frozen— all in a single week. Ongoing reviews of large model launches are now expected. Even private pilots can be stopped suddenly by a government order.
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.View on X
The net effect of this directive is an immediate and complete suspension of access to both models for all foreign nationals.
Cybersecurity design and Project Glasswing
Access to the models was strictly limited to trusted cybersecurity partners, according to Resetera’s reporting. Project Glasswing was focused on defensive cyber operations and essential infrastructure. Trial deployments were granted to approved enterprise clients who agreed to strict terms. The export order suddenly froze all foreign nationals, even at US-based companies. Such a move shows how hard it is to manage detailed access controls when orders arrive. By Friday night, both NBC News and Resetera confirmed: every user saw “temporarily unavailable” messages. Many saw their model sessions end abruptly.
National security concerns and AI capability risks
National security was the main reason for the US government’s order. Anthropic itself has admitted that powerful models bring new risks. Policy debate now focuses on the tradeoff between progress and national interest. Multiple federal agencies have pressured Anthropic over its model speed and scale. Disputes with the Pentagon reflect major concerns about trust in dual-use AI. The Department of Defense labeled Anthropic a supply chain risk after contract talks failed.
Outlook for Anthropic and US AI regulation
Enforcement actions on June 13, 2026, set a new high bar for US intervention. Wired and NBC News both say Fable 5 and Mythos 5 could stay disabled for quite a while, depending on legal battles. Control of powerful models is now the central fight in American technology. International partners and government groups feel ripple effects from this clampdown. Those in AI regulation from various institutions cited by Resetera believe other companies may face similar shutdowns soon. US lawmakers may step in fast if they see new dangers in advanced models.
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Elena Petrova is a regulatory correspondent specializing in crypto law and policy with over 10 years of financial journalism experience. Formerly a finance reporter at Reuters, Elena covers SEC enforcement, MiCA implementation, and global stablecoin regulations. She holds a J.D. from Georgetown Law and is a member of the New York State Bar. Her regulatory analysis is frequently referenced by compliance officers and legal teams at major exchanges.
Conflicts of interest
I have no current legal practice or retainer relationships with any cryptocurrency company. Past employment relationships are listed publicly.
