As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, a company backed by investors...

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

As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, a company backed by investors with $122 billion committed capital. While OpenAI’s board controls governance decisions, day-to-day product ownership lies with the operating team