ChatGPT is owned by OpenAI, the company that developed and maintains the AI....

https://www.unitedbookmarkings.win/curious-about-who-owns-chatgpt-as-of-2024-openai-owns-and-develops-chatgpt-1

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