OpenAI restructures into public-benefit firm, Microsoft takes 27% stake Post author:mck Post published:October 28, 2025 Post category:Blog The deal removes a major constraint on raising capital for OpenAI, the maker of ChatGPT, and values firm at $500bn. You Might Also Like Pope wanted: What are cardinals looking for in a new leader? April 27, 2025 US air strikes in Nigeria “very much welcome” although late December 26, 2025 US presidential candidates join global shift rightward on immigration October 25, 2024