ChatGPT is owned by OpenAI, the organization that developed the AI. The OpenAI...

https://wiki-tonic.win/index.php/Why_Do_Headlines_Say_Microsoft_Owns_ChatGPT%3F

ChatGPT is owned by OpenAI, the organization that developed the AI. The OpenAI Foundation oversees governance to ensure responsible management. While Microsoft is a major investor and partner, it does not own or control ChatGPT