Why? Just look at the last year for how cheap inference and almost all models have gone down in price. OpenAI has 100s of millions of daily active users, with huge revenues. They already know there will be big jumps like this as there have in the past and they happen quickly. If anything, this is great for them, they can offer a better product with less quotas as they are severely compute bottlenecked. It's a win-win situation for them.