Starting August 1, 2025, AWS Lambda will standardize the billing for the INIT phase during function invocations, impacting mainly ZIP packaged, managed runtime functions. Previously, the INIT phase duration was not charged, but this change standardizes billing across all runtime types. Users are expected to see minimal impact on their bills, as the INIT phase occurs infrequently. The article delves into the Lambda function lifecycle, covering INIT, INVOKE, and SHUTDOWN phases, and provides insights into optimizing the INIT phase to manage costs effectively.
Effective August 1, 2025, AWS will standardize billing for the INIT phase of Lambda functions, impacting mainly on-demand invocations of managed runtimes.
The changes will ensure that the INIT phase is consistently billed across all runtime types and deployment packages, minimizing overall impact on user costs.
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