Earlier quoted context omitted.
you can IPO the for-profit subsidiary. done before. the main tricky part is resolving the tax issues since as a non profit you are exempt, but obviously a for profit is not exempt from paying taxes
Mozilla has this same structure (non-profit parent, for-profit subsidiary) because the subsidiary has to pay taxes on the money Google pays to be Firefox's default search engine. As do many gift shops attached to non-profit museums and art galleries.
OpenAI’s profit-generating subsidiary isn’t just there to further the non-profit mission like a museum gift shop or Mozilla’s for-profit subsidiary.