Serverless promises you only pay for what you use, but careless configuration turns “pay per request” into “pay per surprise.” A few habits keep costs in line.
Right-size memory
Function memory also controls CPU. Profiling and tuning memory often makes functions both faster and cheaper at the same time.
Watch the hidden costs
- Excessive logging volume can cost more than compute.
- Chatty functions multiply request charges.
- Idle provisioned concurrency bills around the clock.
Set budget alerts early. The teams that stay cheap are the ones that measure continuously, not the ones who optimize once.