Chinese artificial intelligence start-up Zhipu AI, marketed internationally as Z.ai, has seen the number of paid users overseas increase tenfold over the past two months, the head of its global operations said, in a sign of the growing appeal of Chinese AI services among global users. The Beijing-based company now has around 100,000 monthly API – or application programming interface – users, as well as 3 million free chatbot users overseas, following the launch of its flagship GLM-4.6 model, Li...