> For now, people are just putting their heads in the sand and assuming that physicists will somehow find a way to use quantum computers to speed up inference by a factor of 10^20 in the next years, while simultaneously slashing its costs (lol).

GPT-3 Da Vinci cost $20/million tokens for both input and output.

GPT-5.2 is $1.75/million for input and $14/million for output

I'd call that pretty strong evidence that they've been able to dramatically increase quality while slashing costs, over just the past ~4 years.