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AWS Lambda now charges for INIT Phase (aws.amazon.com)

submitted 2 days ago* (last edited 2 days ago) by [email protected] to c/programming

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Effective August 1, 2025, AWS will start billing for compute used during INIT phases. No more doing lots of work in your init phase for free

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[–] [email protected] 7 points 2 days ago (1 children)

Since AWS controls when the function is expired from warm start to cold start, it’s a guarantee they’re going to become extra aggressive about terminating idle functions.

Why leave customer code loaded for free when you can charge for startup again?

[–] [email protected] 6 points 2 days ago

That's an inherent problem with serverless/functions as a service. There's no guarantee at all on it staying warm for a given amount of time and any system that depended on it without paying for provisioned concurrency was just depending on hopes and dreams.