OpenAI, the developer of ChatGPT, has reached a valuation of $500 billion after current and former employees sold around $6.6 billion worth of shares to investors, Reuters reported on Thursday. The ...

OpenAI completed a $6.6 billion secondary share sale, valuing the ChatGPT maker at $500 billion and surpassing SpaceX as the world’s most valuable startup. Investors included Thrive Capital, SoftBank, ...