As of Aug 4, 2026, ChatGPT is owned by OpenAI, the company that created and...

https://mega-wiki.win/index.php/Why_%E2%80%9CMicrosoft_Owns_ChatGPT%E2%80%9D_Is_Wrong_Even_If_Microsoft_Owns_27_Percent

As of Aug 4, 2026, ChatGPT is owned by OpenAI, the company that created and runs the product. While OpenAI owns ChatGPT, control over the organization’s decisions is shared between its board and investors