AWS Lambda Web Functions keep billing memory ~7 minutes after the last request

seanw265 · hn · 2026-11-13

Easel.sh's measurements show that AWS Lambda Web Functions continue billing memory for roughly 7 minutes after the final request, meaning idle memory costs can noticeably inflate bills for low-traffic web workloads. The post documents the billing timeline in detail — worth factoring in before adopting Web Functions.

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