The 4th China AI Summit will be held in May in Xiamen, Fujian Province, with an eye on making the city a trailblazer in artificial intelligence development. Besides, it is also a pilot zone for China's reform and opening-up. Our reporter Hou Jing visited three AI-focused companies to understand how the emerging technology helps to edit or generate pictures or videos, improves the digital rate and efficiency of pre-school education, and makes autonomous vehicles and roads smarter.