As of Aug 4, 2026, ChatGPT is developed and owned by OpenAI LP, the company...

https://source-wiki.win/index.php/What_Were_the_OpenAI_Ownership_Percentages_on_October_28,_2025%3F

As of Aug 4, 2026, ChatGPT is developed and owned by OpenAI LP, the company behind the product. However, governance control is held by the OpenAI Board and investors who have committed $122 billion to the organization