As of Aug 4, 2026, ChatGPT is owned by OpenAI, a company with a $852 billion...

https://stateofseo.com/does-microsoft-own-chatgpt-or-just-invest-in-openai/

As of Aug 4, 2026, ChatGPT is owned by OpenAI, a company with a $852 billion post-money valuation. The product itself is controlled by OpenAI’s governance board, which balances the interests of investors holding $122 billion in committed capital