Yes, and Yes. Though, as far as I know, there is no financial reason to buy RIs at this point. Check out this comparison table [1]; you get the same savings, bu

Yes, and Yes. Though, as far as I know, there is no financial reason to buy RIs at this point. Check out this comparison table [1]; you get the same savings, but far more flexibility. AWS very rarely removes features. People may still buy RIs because they have corporate or technical processes in place where they make sense. But, from a pure financial standpoint, RIs are inferior to Savings Plans. [1] https://docs.aws.amazon.com/savingsplans/latest/userguide/what-is-savings-plans.html https://docs.aws.amazon.com/savingsplans/latest/userguide/wh...