Something has shifted at OpenAI.Ard SuDecember 6, 2024, 5:31 PM ET Produced by ElevenLabs and News Over Audio (Noa) using AI narration. Listen to more stories on the Noa app.This week, OpenAI launched what its chief executive, Sam Altman, called “the smartest model in the world”—a generative-AI program whose capabilities are supposedly far greater, and more closely approximate how humans think, than those of any such software preceding it. The start-up has been building toward this moment since...