What is AWS Lambda-Provisioned-GB-Second-ARM?

Last updated: April 10, 2025

The Provisioned Concurrency feature keeps Lambda functions initialized for better response times. Charges apply for the duration (per GB-second) Lambda code with enabled Provisioned Concurrency on ARM architectures is executing. Billing starts from function invocation (including cold start time—handler and initialization code) to the time the Lambda code returns or ends. Costs are rounded to the nearest millisecond and vary by memory allocation.