I was never afraid to train an AI chatbot on my writing, because OpenAI had already broken the seal. CEO Sam Altman announced the “GPT” feature at OpenAI’s first developer day in November, prior to ...

OpenAI on Wednesday launched GPT Store, an online marketplace where users can share their custom chatbots with others, after delaying it late last year amid the ousting—and rehiring—of CEO Sam Altman.