Three days. That’s how long Anthropic’s newest AI models were available to the public before the US government pulled the plug.
On June 12, Commerce Secretary Howard Lutnick sent a letter directly to Anthropic CEO Dario Amodei imposing export controls on the company’s Fable 5 and Mythos 5 models. The directive bars access for any foreign nationals, both inside the US and abroad, including Anthropic’s own non-US employees. The reason: concerns that a demonstrated jailbreak technique could let foreign adversaries weaponize the models for military intelligence purposes.
Anthropic responded by doing the only thing it could. It disabled access to both models globally for all users, not just foreign nationals. The company cited the impracticality of monitoring user nationality in real time as the reason for the blanket shutdown rather than a targeted one.
From launch to lockdown in 72 hours
Anthropic had released Fable 5 and Mythos 5 publicly on June 9, touting state-of-the-art capabilities in reasoning and software engineering.
