BEIJING — Alibaba Cloud is investing in a new type of artificial intelligence designed to better replicate the real world using a different approach from chatbots such as OpenAI's ChatGPT. The shift recognizes the limits of "large language models" trained primarily on text. Instead, developers are starting to focus more on "world models " built on videos and real-life physical scenarios. To jump on the trend, Alibaba led a 2 billion yuan ($290 million) investment in ShengShu, the startup behind