AI news story

US government forces Anthropic to disable Claude Fable 5 and Mythos 5 for all customers worldwide

The US government has ordered Anthropic to shut down global access to Fable 5 and Mythos 5, citing alleged jailbreak risks.…

  • LLMs
  • Source: The Decoder
  • Published: 2026-06-13

Editor's take

The US government has compelled Anthropic to deactivate its Fable 5 and Mythos 5 models for all users globally due to perceived jailbreak vulnerabilities.

This move highlights the increasing governmental scrutiny over AI safety and the potential for state intervention in the development and deployment of large language models. Anthropic's public pushback, suggesting these flaws are present in models from competitors like OpenAI, underscores the competitive pressures and differing interpretations of risk within the LLM industry, impacting developers and users alike.

Future developments will reveal whether this action sets a precedent for government-mandated model shutdowns, and how Anthropic and other companies will balance security concerns with open access and innovation. The key question remains: what constitutes an unacceptable risk, and who ultimately decides?