A growing number of people are using AI chatbots as “trip sitters”—a phrase that traditionally refers to a sober person tasked with monitoring someone who’s under the influence of a psychedelic—and sharing their experiences online. It’s a potent blend of two cultural trends: using AI for therapy and using psychedelics to alleviate mental-health problems. “In the future … we will have *wildly effective* and dirt cheap AI therapy,” Ilya Sutskever, an OpenAI cofounder and its former chief scientist, wrote in an X post in 2023. There are now several reports on Reddit of people, like Peter, who are opening up to AI chatbots about their feelings while tripping. “Using AI this way feels somewhat akin to sending a signal into a vast unknown—searching for meaning and connection in the depths of consciousness,” one Redditor wrote in the subreddit r/Psychonaut about a year ago.