You can with some effort, but cloud providers don't provide real-time information on how much you're spending. Even if you use spending alerts to program a hard cut-off yourself, a mistake can still result in you being charged for 6+ hours of usage before the alert fires.

> You can with some effort, but cloud providers don't provide real-time information on how much you're spending.

This should be illegal. If you can't inform me about the bill on my request you shouldn't be legally able to charge me that bill. Although I can already imagine plenty of ways somebody could do malicious compliance with that rule.