OpenAI owns ChatGPT, managing its development and deployment. The OpenAI...

https://landensbrilliantperspectives.capitaljays.com/posts/who-actually-controls-openai-if-investors-own-shares

OpenAI owns ChatGPT, managing its development and deployment. The OpenAI Foundation oversees governance, ensuring responsible use. While Microsoft is a major investor, it does not control ChatGPT or OpenAI