My defaultAWSCost

Savings Plans and Reserved Instances

My main lever on AWS cost. AWS margins are high; commitments bring them down.

I love AWS and I hate its prices. Commitments are how I make them reasonable.

Use it when

Any steady baseline of compute or databases.

Provisioning

No provider · No Terraform provider

Purchased in the console or API, not managed as infrastructure.

Where it fits

An AWS foundation for a client: Pick 04.
Commit once the baseline is known.

Last reviewed 18 October 2026 by Nicolas Dao

Also in Accounts, identity and cost

Default Amazon Cognito: Authentication
Default AWS Backup: Backups
Default AWS Organizations + IAM Identity Center: Accounts and access
Default Better Auth: Authentication library, users in your Postgres
Default Cost Explorer (with Claude Code): Cost analysis

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Cloudless Labs is a Sydney consultancy. We migrate on-premises systems to AWS, build serverless apps on this stack, and coach teams to ship with Claude Code and Codex.