For the past ten years and with the big data movement, artificial intelligence has achieved a high profile. Political and economic actors have found an interest in actively promoting artificial intelligence, while researchers from all scientific backgrounds are increasingly orienting their work towards this object of study which, quite often and wrongly, appears new to them. This collective commitment is necessary because of the immensity of the human, social and economic stakes associated with the development of artificial intelligence. The problem is that it is accompanied by media hype that tends to confuse the debates and the work. A striking example is the fact that today there are several well-known specialists who express the idea that artificial intelligence does not exist ! So that, even in the scientific community, it is sometimes difficult to identify what artificial intelligence is. This article aims to lift the veil on this mystery.