OpenAI’s unusual structure became an issue in 2023 when Altman was suddenly fired and then, after several days of chaos, reinstated.

OpenAI said that its nonprofit parent will continue to oversee the company and have a very large stake in its future.

The start-up OpenAI reached a tentative deal with Microsoft, its biggest investor, and said it would give a $100 billion stake to the nonprofit that manages it.

OpenAI’s unusual structure became an issue in 2023 when Altman was suddenly fired and then, after several days of chaos, reinstated.