Sam Altman is the co-founder and CEO of OpenAI, the company behind ChatGPT. He’s also a St. Louis native. Altman was back in his hometown Friday, the day after the launch of the newest model of ChatGPT. He started his day at his alma mater, John Burroughs School in Ladue, talking to students and teachers. Later he sat down to talk with St. Louis on the Air host Elaine Cha.