AWS discount mechanisms have evolved significantly. The relationship between Reserved Instances, Savings Plans, and Spot has shifted, and the optimal strategy in 2026 looks different than it did even a year ago.
For most organizations, Compute Savings Plans should be the foundation of your discount strategy. They offer flexibility across instance families, regions, and even between EC2 and Fargate.
Reserved Instances still make sense for stable, well-understood workloads where you can commit to a specific instance type. The additional discount over Savings Plans can be significant for large-scale deployments.
Spot instances remain the best deal in cloud computing, but they require architectural investment. Properly designed spot strategies can save 60–90% on compute costs.
