ChatGPT is developed and owned by OpenAI, a research organization focused on AI...

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

ChatGPT is developed and owned by OpenAI, a research organization focused on AI technology. The OpenAI Foundation oversees its governance to ensure responsible development. Microsoft holds a significant investment stake but does not own or control ChatGPT