Anthropic to disable its most advanced AI models after US order limiting foreign access
infonewsLLM-Specific
policysecurity
Source: The Guardian TechnologyJune 13, 2026
Summary
Anthropic will disable its most advanced AI models (Fable 5 and Mythos 5) for all users after the US government ordered the company to stop letting foreign nationals access them, citing national security concerns. The US government believes the safeguards protecting these models can be bypassed and the models could be used to identify software vulnerabilities, though Anthropic was not given specific details about the security concern.
Classification
Attack SophisticationModerate
Impact (CIA+S)
confidentiality
AI Component TargetedModel
Affected Vendors
Anthropic
Related Issues
Monthly digest — independent AI security research
Original source: https://www.theguardian.com/technology/2026/jun/13/anthropic-disable-advanced-ai-models-us-government-order
First tracked: June 13, 2026 at 02:00 PM
Classified by LLM (prompt v3) · confidence: 92%