What is AWS Lambda-Edge-GB-Second?

Last updated: April 27, 2025

Lambda@Edge is a fully programmable, serverless edge computing environment for implementing a wide variety of complex customizations. Lambda@Edge functions are executed in a regional edge cache (usually in the AWS region closest to the CloudFront edge location reached by the client). You are charged for both requests as well as duration of the execution. This billing code represents the charge for duration of execution. Duration is calculated from the time your code begins executing until it returns or otherwise terminates. You are charged $0.00005001 for every GB-second used. For instance, if you allocate 128MB of memory available per execution with your Lambda@Edge function, then your duration charge will be $0.00000625125 for every 128MB-second used, metered in 1ms granularity.