Anthropic AI Restricted: US Cites National Security Risk

Anthropic has suspended access to its most advanced AI models for international users. This action follows the US designating these models as potential national security risks. The decision blocks foreign governments, businesses, researchers, and individuals, including foreign nationals in the US, from using the company’s latest AI systems. Commerce Secretary Howard Lutnick informed Anthropic CEO Dario Amodei that the Fable 5 and Mythos 5 models are now under export control rules. Anthropic stated it disabled access entirely because the new US restrictions apply broadly, making selective enforcement impractical. The company said this affects Fable 5 and Mythos 5, but access to other models is not impacted. This move signals that Washington views advanced AI capabilities as strategically sensitive technologies. The suspension of Mythos raises concerns for critical infrastructure security, as organizations rely on it to detect and fix software vulnerabilities. This development could have significant implications for the global AI industry and cybersecurity efforts.