Hundreds of German Protestants attended a church service in Bavaria that was generated almost entirely by artificial intelligence. The service was created by ChatGPT and Jonas Simmerlein, a theologian and philosopher from the University of Vienna. It was one of hundreds of events at the convention of Protestants in the Bavarian towns of Nuernberg and Fuerth, and it draw such an immense interest that people formed a long queue outside the building an hour before it began. The ChatGPT chatbot, personified by different avatars on a huge screen above the altar, led the more than 300 people through 40 minutes of prayer, music, sermons and blessings.