I waited until off peak hours to use Opus 4.6 to do some research. One prompt consumed 100% of my 5h limit and 15% of my weekly usage. Even off peak it's still insane. Opus didn't even manage to finish what it was doing.

I'm surprised it's during east coast working hours and not west coast.

the speculation i read was that it's trading hours, and they're getting a lot of load from the finance industry

Technically, this was Friday morning, so I think I was still in peak hours.