As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, a capped-profit company....

https://yenkee-wiki.win/index.php/OpenAI_Ownership_for_Analysts:_What_to_Model_Without_a_Cap_Table

As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, a capped-profit company. Product ownership rests with OpenAI LP, while governance control is held by the OpenAI non-profit board