But it's also important to note that only $300K of that is in cash. The other $600K is in profit participation, which could take years (maybe even a decade!) to be realized. It could also be worth $6M a year when it's realized.
But ultimately it's an investment of your time. Or to think of it another way, you're getting paid $900K a year but you're also investing $600K a year in OpenAI, which may end up being an amazing return or nothing at all, just like any startup investment.
Although with Sam at the helm, my guess is it will probably be worth more than $600K a year.
First, ~46% of it is gone in taxes including federal tax (~25%), state tax (~8%), FICA (~4%), and sales tax on everything you eventually use the money for (~9%).
So that's 162K left. Not a lot to pay sky-high rents, car payments, insane medical bills despite insurance, lawyers to fight said bills, save up money for parental elderly care, save up money for yourself for retirement, etc.
And yeah, having kids on that money? Very difficult.
If you're not in the bay area, different story, it's a very nice income. But they probably won't give you that package if you're remote.
And if you're in the bay and not planning on having kids, it's an okay salary.
You surprisingly (considering you're making 5x the median household income for the US) end up having to lightly adhere to some sort of budget. With car payments, sending money to your family, and local inflated prices, it's easy to find yourself not saving enough for early retirement
I think if you just don't buy new cars or first class international plane tickets you can get by pretty comfortably though. I saved $100k a year with a pre-tax total comp of $350k for a few years in the Bay Area