Compute
AWS Lambda
- Timebilled
- Bytesbilled
- Callsbilled
In one line
Every invocation bills twice: once as a request, once as GB-seconds of memory multiplied by run time.
What gets missed
Provisioned concurrency bills from the moment you enable it until you turn it off, with zero invocations. Since 1 August 2025 the INIT phase counts toward billed duration on on-demand invokes as well.
Find it on your bill
Filter Cost Explorer or your Cost and Usage Report by these usage types. A usage type with no region prefix means us-east-1.
RequestLambda-GB-SecondLambda-Provisioned-ConcurrencyLambda-Storage-GB-Second
Bills the same way
These services turn exactly the same meters, so what you learn here transfers.