OpenAI now worth $500 billion, possibly making it the world’s most valuable startup

October 3, 2025

OpenAI logo with a metallic outline of a brain

(AP) – OpenAI could now be the world’s most valuable startup, ahead of Elon Musk’s SpaceX and TikTok’s parent company ByteDance, after a secondary stock sale designed to retain employees at the ChatGPT maker. (Read More)