AI psychosis is not a recognized clinical label. Still, the phrase has spread in news reports and on social media as a catchall descriptor for some kind of mental health crisis following prolonged chatbot conversations. Even industry leaders invoke it to discuss the many emerging mental health problems linked to AI. But according to MacCabe, case reports of AI psychosis almost exclusively focus on delusions—strongly held but false beliefs that cannot be shaken by contradictory evidence. While acknowledging some cases may meet the criteria for a psychotic episode, MacCabe says “there is no evidence” that AI has any influence on the other features of psychosis.