How does OpenAI make money?

I'm curious to understand the financial aspects of OpenAI. Could you elaborate on how exactly does OpenAI generate revenue? I've heard about their advancements in AI research and applications, but I'm not quite clear on the business model that supports their operations. Do they rely primarily on grants or funding from organizations? Or do they have a more diversified income stream, perhaps through partnerships, licensing, or even selling products and services? It would be helpful to get a breakdown of their main revenue streams and how they contribute to the overall financial health of the company.