Full quote:

“We’ve been growing a lot and are out of GPUs,” Altman wrote. “We will add tens of thousands of GPUs next week and roll it out to the Plus tier then … This isn’t how we want to operate, but it’s hard to perfectly predict growth surges that lead to GPU shortages.”

So they are 'out of GPUs', for this week only? Why would they push out the launch then? Could anybody provide more insight?