As of Aug 4, 2026, ChatGPT is owned by OpenAI, which holds the product rights...

https://suprmind.ai/hub/insights/who-owns-chatgpt/

As of Aug 4, 2026, ChatGPT is owned by OpenAI, which holds the product rights and development. However, OpenAI’s governance structure separates control between non-profit board members and investors, reflecting a $852 billion post-money valuation