Also keep in mind that Microsoft hasn't actually given OpenAI $13 Billion because much of that is in the form of Azure credits.
So this could end up being the cheapest acquisition for Microsoft: They get a $90 Billion company for peanuts.
[1] https://stratechery.com/2023/openais-misalignment-and-micros...
If Microsoft does this, the non-profit OpenAI may find the action closest to their original charter ("safe AGI") is a full release of all weights, research, and training data.