> The $11bn that Microsoft has reportedly put into Openai would, at the startup’s latest rumoured valuation of $29bn, give the software giant a stake of 38%. T

> The $11bn that Microsoft has reportedly put into Openai would, at the startup’s latest rumoured valuation of $29bn, give the software giant a stake of 38%. That's not quite accurate, Microsoft first invested $1 billion in OpenAI in 2019 (four years ago) and another $10 billion a few months ago when it was valued at $29B. So it's latest $10B investment gives it a 35% ownership, but it's unclear how much the $1B 2019 investment gave Microsoft. Some news reports peg Microsoft's current ownership at 49% of OpenAI, which means Microsoft's 2019 investment gave it 14% of the company (which would further indicate that OpenAI was valued at $7-8 billion at that time).