Character.AI is among a crop of companies that have developed “companion chatbots,” AI-powered bots that have the ability to converse, by texting or voice chats, using seemingly human-like personalities and that can be given custom names and avatars, sometimes inspired by famous people like billionaire Elon Musk, or singer Billie Eilish. Users have made millions of bots on the app, some mimicking parents, girlfriends, therapists, or concepts like “unrequited love” and “the goth.” The services are popular with preteen and teenage users, and the companies say they act as emotional support outlets, as the bots pepper text conversations with encouraging banter.