U.S. export curbs on Anthropic spur adoption of Chinese AI

On June 12 the U.S. Department of Commerce imposed export controls that required Anthropic to block access by non-U.S. citizens to its Claude Mythos 5 and Fable 5 models. The department cited national security concerns, including potential cybersecurity vulnerabilities and risks that models could be manipulated, as the basis for the directive.

Anthropic reported it could not immediately verify the citizenship of all users worldwide and suspended international accounts for the affected models. The suspension left global customers without access to those models for business applications and prompted some firms to seek alternatives to avoid service interruptions.

American companies and multinational clients increased trials and integrations of Chinese open-source AI models while Anthropic restricted international access. Companies pursuing uninterrupted operations evaluated and in some cases deployed those models to maintain workflows and customer-facing services.

Industry procurement teams and corporate technology leaders said the action prompted rapid shifts in supplier choice and testing of decentralized and alternate AI options. Some enterprises described the change as a way to preserve continuity amid sudden regulatory changes coming from U.S. authorities.

After Anthropic implemented enhanced security classifiers and underwent a federal security review, the Commerce Department removed the formal licensing requirement. U.S. Commerce Secretary Howard Lutnick confirmed a license is no longer required to distribute the Mythos or Fable models. Anthropic began restoring global access on July 8. The export controls and the suspension of international access lasted under three weeks.

Technology executives and trade experts responded to the episode. Sridhar Vembu, founder of Zoho, wrote on social media: ‘Chinese open source models posed a serious enough threat to market share.’ OpenAI delayed a wider rollout of a new GPT model at the request of federal officials. Economists and trade groups told regulators they were concerned that abrupt enforcement of export rules could prompt international customers to adopt software and models developed outside U.S. jurisdiction to protect operational stability.