Why the US just blocked Australians from using Anthropic’s most powerful AI
The US government ordered Anthropic to suspend access to its most advanced AI models, Fable 5 and Mythos 5, for foreign nationals, including Australians, citing potential bypass risks to safety guardrails. Anthropic disputes the claims, arguing the concerns are narrow and unverified, while the move raises broader questions about global access to frontier AI technology.
The US government has directed Anthropic to block foreign nationals, including Australians, from accessing its most powerful AI models, Fable 5 and Mythos 5, over national security concerns. The decision affects select Australian organizations that recently gained access to Mythos 5 through Anthropic’s Project Glasswing program. Fable 5 is Anthropic’s flagship general-purpose AI model, capable of complex problem-solving, software development, and research with minimal human input. Mythos 5, a specialized cybersecurity model, was designed to identify software vulnerabilities but was restricted due to potential misuse risks. The US government claims there may be a way to bypass Fable 5’s safeguards, allowing it to be used for harmful activities like cyberattacks. Anthropic disputes this, stating the evidence provided by officials is limited and does not prove a broader security failure. The company is working to restore access while the issue is investigated. The move follows Anthropic CEO Dario Amodei’s recent call for stronger government oversight of advanced AI systems. However, the ban applies broadly to all foreign users, including allies like Australia, raising questions about fairness in access restrictions. The shutdown also coincides with tensions between Anthropic and parts of the Trump administration, further complicating the company’s relationship with US regulators.
This content was automatically generated and/or translated by AI. It may contain inaccuracies. Please refer to the original sources for verification.