Cloud cost optimization is the continuous practice of reducing cloud expenditures while maintaining or improving performance, reliability, and business value across AWS, Azure, Google Cloud, and other cloud platforms. It encompasses strategic approaches ranging from commitment-based discounts and resource rightsizing to automated waste elimination and real-time cost governance. As organizations increasingly adopt multi-cloud and AI workloads in 2026, cost optimization has evolved from periodic reviews to continuous, automated control loops that tie cloud spending directly to unit economics and business outcomes. The most successful strategies combine technical optimization (right-sizing, spot instances, storage tiering, AI/GPU efficiency) with organizational practices (FinOps culture, shift-left cost governance, showback/chargeback) and platform-native tools (AWS Compute Optimizer, Azure Cost Management, GCP Active Assist).
What This Cheat Sheet Covers
This topic spans 19 focused tables and 151 indexed concepts. Below is a complete table-by-table outline of this topic, spanning foundational concepts through advanced details.
Table 1: Commitment-Based Pricing Models
Commitment-based discounts are the single highest-leverage lever most organizations underuse — trading flexibility for deep, predictable savings on stable workloads. Choosing the right commitment type, term length, and coverage target requires understanding how each model balances lock-in risk against discount depth.
| Strategy | Example | Description |
|---|---|---|
Compute SP:$10/hour commitAny instance family/region | • Flexible pricing model offering up to 72% savings based on dollar-per-hour commitment • automatically applies to EC2, Fargate, Lambda across instance families and regions. | |
EC2 Standard RI:1-year, 72% discountInstance type locked | Long-term commitment (1-3 years) for specific instance types offering deep discounts but limited flexibility across instance families or regions. | |
60-90% discountInterruptible workloadsUse 10+ instance types | • Spare capacity at massive discounts but can be preempted with 2-minute warning • ideal for fault-tolerant batch jobs, CI/CD, data processing, and AI/ML training. | |
3-year Azure RI:Up to 72% savingsSize flexibility in family | • Azure's commitment pricing with size flexibility within the same instance family and region • supports instance size exchanges. |