China's state security minister ​Chen Yixin wrote in a government outlet on Sunday that advanced U.S. models such as Anthropic's Mythos and OpenAI's GPT-5.5-Cyber could pose serious risks to China's critical information infrastructure, and called for a comprehensive strengthening of AI security.

Dario Amodei previously warned that a “Chinese lead in AI would pose grave danger for the United States and the world.”

Anthropic said it detected unauthorized efforts by China-based AI labs including Alibaba and Moonshot AI to use its Claude models to help improve their own AI systems.

Altman and rival Elon Musk, who were earlier this year locked in a legal battle, made a rare alliance over the weekend as they backed a lengthy letter from Anthropic CEO Dario Amodei urging global

China’s artificial intelligence industry is shifting from competition in large models and computing power toward the deployment and commercialization of AI agents, according to a report by the China Telecom Research Institute cited by China Central Television on Saturday.

Trump and Defense Secretary Pete Hegseth fired back at the time by labeling the company a supply chain threat and banned other businesses that contract with the government from working with the AI startup.

In its most detailed accusation yet, the U.S. government has named six Chinese AI companies that it says copied American companies for their AI secrets.

Anthropic says DeepSeek and Moonshot used thousands of fake accounts and millions of real user queries in “distillation” efforts to clone its AI capabilities.