Overview

CCI supports pay-per-use billing, accurate to seconds. You use the resources first and then pay for them. Bills are settled by the hour. Pay-per-use billing allows you to flexibly adjust resource usage. You neither need to prepare for resources in advance, nor end up with excessive or insufficient preset resources. It is a good option for scenarios where there are sudden traffic bursts, such as e-commerce promotions.

**Table 1** Pay-per-use billing
Billing Mode	Pay-per-use billing
Payment	Postpaid Billed by how long you use your resources
Billing Method	Calculated by the second but billed every hour
Billed Items	Pods, including their vCPUs and memory
Changing Pod Specifications	Supported
Application Scenario	Recommended when the resource demands are likely to fluctuate and you want more flexibility.