When it comes to artificial intelligence, most people probably imagine a robot with superhuman abilities, as it is often shown in popular cinematic or literary works. But artificial intelligence can take many forms. Although the real ones are a little less spectacular than the fictional ones, that does not diminish their usefulness. One of them are programs capable of communicating with people in natural language - chatbots. Despite the fact that chatbots have existed for more than 50 years, their introduction and interest in them began to grow only in this decade. Undoubtedly, behind this growth is the growth of popularity and the growing development of smartphones. Chatbots are also sometimes referred to as “new apps” due to their importance and business use. The subject of the paper is artificial intelligence and application in business with an emphasis on chatbot. Artificial intelligence has different subfields and there are many amazing inventions that are already present and make our daily communication and life easier. Some of these inventions have been successfully implemented in the work of organizations that grow with their help. The use of artificial intelligence on the Internet, social networks, in marketing and telecommunications is becoming increasingly popular. The aim of the paper is to acquaint the reader with the basic concepts that are essential for understanding the functioning of artificial intelligence and of course the chatbot system that is emphasized in this paper.