OpenAI owns ChatGPT and oversees its development. The OpenAI Foundation manages...

https://wiki-fusion.win/index.php/How_Can_Microsoft_Be_the_Primary_Cloud_Partner_Without_Owning_OpenAI%3F

OpenAI owns ChatGPT and oversees its development. The OpenAI Foundation manages the platform’s governance to shape its future responsibly. Microsoft is a major investor in OpenAI but does not own ChatGPT