ChatGPT is owned by OpenAI, the company behind its development. The OpenAI...

https://future-wiki.win/index.php/Is_OpenAI_a_Normal_Startup_Company_Structure%3F

ChatGPT is owned by OpenAI, the company behind its development. The OpenAI Foundation oversees governance to guide its mission and ethical use. While Microsoft is a major investor and partner, it does not own ChatGPT or control OpenAI