Microsoft and OpenAI announced a deal Tuesday that allows the maker of ChatGPT and the Atlas browser to restructure into a public benefit corporation (PBC), valuing OpenAI at $500 billion and clearing the way for it to become a publicly traded company.
The ownership stake is exclusively in OpenAI's for-profit arm. The overall company structure is divided into two distinct parts, and this investment is specifically in the commercial entity.
OpenAI's nonprofit is now called the OpenAI Foundation, and it holds an equity stake worth about $130 billion in its for-profit arm. OpenAI said its for-profit arm is now a public benefit corporation called OpenAI Group PBC.
Under the new structure, the OpenAI Foundation will hold a 26% stake in the for-profit, with 47% held by current and former employees and investors.
Microsoft will hold a stake of about $135 billion, or 27%, in OpenAI Group PBC, which the OpenAI Foundation will control.