OpenAI owns ChatGPT and leads its development. The OpenAI Foundation handles...

https://iris-wiki.win/index.php/Is_OpenAI_Public_Because_It_Filed_a_Confidential_S-1%3F

OpenAI owns ChatGPT and leads its development. The OpenAI Foundation handles governance to guide its mission and policies. Microsoft is a significant investor supporting OpenAI’s growth but does not own ChatGPT or control its operations