Can you use Pi with a Google Pro AI sub or do you need to use API billing?

Using API billing would be a bummer because, as far as I know, there's no way to set up a spend cap or pre-pay the API key, correct?

	▲	tobias2014 an hour ago \| parent [-]
		They finally allowed for a hard spend cap that's easy to set a few weeks ago: https://aistudio.google.com/spend