Cloud pricing models
Last updated 2026-06-04
Cloud pricing models are the distinct ways cloud providers charge for compute, storage, and other resources, and choosing the right mix is central to cost optimization. On-demand (pay-as-you-go) charges by the second or hour with no commitment and carries the highest unit price, which makes it best for spiky or short-lived workloads. Reserved Instances and Savings Plans, along with Google's Committed Use Discounts, trade a one or three year commitment for a large discount on steady-state usage. Spot capacity reuses a provider's spare inventory and offers the deepest discount for interruptible, fault-tolerant workloads, though instances can be reclaimed with little notice. Consumption or serverless pricing charges only for actual execution, scaling to zero when idle. Most large bills blend all of these, and the savings come from matching each workload to the cheapest model it can safely use. LevelFour delivers the resulting optimizations as reviewable infrastructure-as-code pull requests.
Frequently asked questions
- What is the difference between on-demand, reserved, and spot pricing?
- On-demand bills by the second or hour with no commitment at the highest unit price. Reserved Instances and Savings Plans give a large discount in exchange for a one or three year commitment on steady usage. Spot offers the deepest discount but the provider can reclaim the capacity at any time.
- Which cloud pricing model is cheapest?
- Spot capacity is typically the cheapest, but it suits only interruptible, fault-tolerant workloads because instances can be reclaimed with little notice. For predictable, steady-state usage, commitment-based models like Reserved Instances, Savings Plans, or Committed Use Discounts are usually cheapest. The savings come from matching each workload to the lowest-cost model it can safely use.
LevelFour automates this across AWS, GCP, Azure, and Kubernetes with automated infrastructure-as-code pull requests.