There was a surprise guest speaker at Nvidia’s widely watched GPU Technology Conference (GTC) in San Jose, California, last month: Yang Zhilin, the founder of Beijing-based Moonshot AI, the developer behind the Kimi family of foundational artificial intelligence models. Amid heated rhetoric about US-China AI competition, which some have likened to an “arms race”, the participation of a Chinese AI start-up’s CEO at the flagship event of American chipmaking giant Nvidia might have struck some as...