Billing Mode

Yearly/Monthly
Yearly/Monthly is a prepaid billing mode in which your subscription is billed based on the required duration. This mode is more cost-effective when the usage duration is predictable.
Pay-per-use
Pay-per-use is a postpaid billing mode. You are billed for how long you use each ECS. You can purchase or delete such an ECS at any time.

Differences Between Yearly/Monthly and Pay-per-Use

**Table 1** Billing modes
Billing Mode	Yearly/Monthly	Pay-per-use
Payment Mode	Prepaid Billed by the purchase period specified in your order Yearly/Monthly Billing	Postpaid Billed by usage duration Pay-per-Use Billing
Billing Period	Billed for the required duration specified in your order.	Billed by the second. A bill is generated on the hour.
Billing Item	Compute resources	Compute resources and EVS disks
Applicable Resource Pool	Dedicated resource pools	Public resource pools and dedicated resource pools
Applicable Function	Standard ExeML, workflow, notebook, model training, and model deployment Lite Cluster Lite Server	Standard ExeML, workflow, notebook, model training, and model deployment
Billing Mode Change	Not supported	The billing mode can be changed to yearly/monthly. Pay-per-Use to Yearly/Monthly.
Flavor Change	N/A	Supported
Scenario	This cost-effective mode is ideal when the duration of resource usage is predictable. This mode is recommended for long-term users.	This mode is suitable when you want more flexibility and control on compute resource usage.