As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, the company that developed...

https://bizzmarkblog.com/what-should-i-watch-for-in-openais-ipo-documents/

As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, the company that developed the product. While OpenAI LP runs the day-to-day work on ChatGPT, overall governance control lies with the OpenAI board and associated limited partners