I mean vested stock doesn't necessarily need to go up in value. In some places the stock comp is higher than the actual pay, so even if you sell on the day of vesting you're doubling your income. So the investment viability of stock comp doesn't matter too much, it only matters how much of it you receive.

well since openai is private probably the employees are getting stock options not RSUs--which, since it's private, might be hard to sell even if they do exercise them..