Baidu is a leading artificial intelligence (AI) company, with a strong internet foundation. It is one of the few companies worldwide that provides full-stack AI technologies such as AI chips, software architecture and applications. It has been rated as one of the world's top four AI companies by international organizations. Baidu was founded in 2000 in Zhongguancun. Baidu responds to billions of search requests from over 100 countries and regions every day, serving 1 billion internet users as the primary gateway for Chinese information and services. It has evolved artificial intelligence technologies such as voice, image, knowledge graph, and natural language processing.