China has started testing an AI chatbot for brain surgeons in hospitals. As Bloomberg reports, the Hong Kong-based Center for Artificial Intelligence and Robotics, an institution of the Chinese Academy of Sciences, has unveiled the AI bot called CARES Copilot 1.0. It is based on the open-source language model Llama 2.0 by the US company Meta Platforms. Researchers have trained and fine-tuned CARES Copilot 1.0 using newspapers, medical journals and manuals so that it can act as a kind of surgical advisor. Seven hospitals in Beijing and other cities will be testing the bot in the coming months.