Glossary · Pricing & Commitments
What is a Compute Savings Plan?
The most flexible AWS Savings Plan variant — applies to EC2, Fargate, and Lambda usage across any region, instance family, OS, and tenancy.
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Compute Savings Plan
A Compute Savings Plan commits to a steady level of compute spend ($/hour) for 1 or 3 years, in exchange for a discount of up to ~66% off on-demand. The key feature: the discount applies across any EC2 family or size, in any region, on any OS, including AWS Fargate and AWS Lambda usage.
That flexibility makes Compute Savings Plans the default starting recommendation for most teams — you commit to a dollar amount of compute, not a specific instance type, so you can refactor or migrate without losing the discount.
For a team uncertain whether they'll stay on EC2 or move workloads to Lambda / Fargate over the term, the Compute Savings Plan eliminates the lock-in worry of a Reserved Instance. The discount is a few points lower than an EC2 Instance Savings Plan, but the flexibility is usually worth it.
Related
Savings Plan
A 1- or 3-year AWS commitment to a steady level of compute usage ($/hour) in exchange for a lower rate. Flexible across instance family, size, OS, region, and tenancy.
Reserved Instance (RI)
An older AWS commitment model — pre-pay for a specific instance type / region / tenancy / OS for 1 or 3 years in exchange for a discount of up to ~72%.
EC2 Instance Family
The letter-and-number prefix of an EC2 instance type (m, c, r, t, etc.) that maps to a specific generation, processor, and resource ratio (CPU vs memory).
Forecasting & Budgets
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