Overview

CCI supports two billing modes: pay-per-use and packages.

Pay-per-use is a postpaid billing mode. You use the resources first and then pay for them. The duration is calculated by the second but billed every hour. This allows you to flexibly adjust the resources. 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 flash sales.
Packages are a prepaid billing mode. You pay in advance for a subscription term. The longer the subscription period, the higher the discount. Packages are a good option for long-term, stable services.

**Table 1** Billing modes
Billing Mode	Pay-per-use billing	Packages
Payment	Postpaid Billed by how long you use your resources	Prepaid Billed based on the purchased packages
Billing Method	Calculated by the second but billed every hour	Billed by the subscription term of each package
Billing Items	Pods, including their vCPUs and memory	There are vCPU packages and memory packages.
Billing Mode Change	Pay-per-use can be changed to packages.	A package can be used immediately after being purchased. You cannot change the billing mode before the package is used up. After the package is used up, the billing mode automatically changes to pay-per-use.
Changing Pod Specifications	Supported	Supported
Application Scenario	Recommended when the resource demands are likely to fluctuate and you want more flexibility.	Recommended for long-term, stable services.