Subscriptions (Committed) are a prepaid billing method where you pay in advance for resource usage. With this option, you can reserve resources ahead of time and enjoy greater discounts, helping you achieve more significant cost savings.
On-demand (Pay-as-you-go) is a billing method where you pay after using the services. With pay-as-you-go, you can provision and release resources as needed without the requirement to purchase large amounts of resources in advance.
Billing for on-demand instances begins once the instance is created and ends when the instance is released. Instances are billed by the minute, calculated based on an hourly rate.
