Anthropic has restored access to its advanced AI models, including Fable 5 and the previously restricted Mythos 5, following a temporary suspension mandated by U.S. export control regulations. The company confirmed the restoration of these services after engaging with the Department of Commerce to resolve compliance concerns.
Why Were Anthropic’s Models Suspended?
The disruption began on June 12, when Anthropic announced it had to disable access to Fable 5 and Mythos 5 to comply with an export control order issued by the Trump administration. The order required the company to prevent foreign nationals—including its own employees—from accessing either model.
Anthropic maintained throughout the dispute that the government’s action stemmed from a misunderstanding regarding a possible Fable 5 "jailbreak." Following the order, company officials traveled to Washington, D.C., to try to resolve the issue with the White House. The Department of Commerce ultimately lifted export controls on Claude Fable 5 and Mythos 5.
The Regulatory Climate for AI Developers
This incident illustrates the degree to which one of the world’s leading AI companies continues to struggle with its relationship with the government. The relationship has been particularly strained following a March action by Defense Secretary Pete Hegseth, who formally labeled Anthropic as a supply chain risk.
In response, Anthropic sued the Trump administration to overturn Hegseth’s order. That litigation remains ongoing. The tension reflects a broader government effort to oversee the development of powerful AI. Recently, President Donald Trump signed an AI executive order, which allows leading AI companies to voluntarily allow the US government to review advanced models up to 30 days before their public release.
Strategic Implications for Anthropic’s IPO
The regulatory challenges arrive as Anthropic prepares for an IPO that could occur as soon as this year. On June 1, the company announced that it had confidentially filed an S-1 draft, the first step toward going public.
Anthropic has previously demonstrated caution with its release strategy; for example, in April, it announced that the first iteration, Claude Mythos Preview, would only be released to a select number of companies as part of what it deemed Project Glasswing because the AI model was too adept at finding and exploiting cybersecurity vulnerabilities. By holding off on a public release, the company stated its intent to allow organizations sufficient time to bolster their cybersecurity defenses.
Key Takeaways
- Service Restoration: Anthropic has resumed access to its AI models after Department of Commerce export controls were lifted.
- Compliance Dispute: The suspension was prompted by a government order restricting foreign national access to high-capability models, which Anthropic attributed to a misunderstanding of a possible Fable 5 "jailbreak."
- Ongoing Litigation: Anthropic continues to challenge a separate supply chain risk designation imposed by Defense Secretary Pete Hegseth in March.
- Market Status: The company is currently moving through the confidential S-1 filing process as it moves toward a planned IPO.