OpenAI has raised more than $4 billion from investors, including TPG Inc., Brookfield Asset Management, Advent and Bain Capital, for a firm focused on helping businesses leverage its AI softwareOpenAI has raised more than $4 billion from investors, including TPG Inc., Brookfield Asset Management, Advent and Bain Capital, for a firm focused on helping businesses leverage its AI software Latest News [ SOBAN NEWS: International and National ]