Cluster E · AWS Cost Optimization & FinOps
Cut your AWS bill — without cutting corners
The levers that actually move an AWS bill: Savings Plans & Reserved Instances, right-sizing, Spot, Graviton, storage tiering, the data-transfer traps nobody warns you about, and the budgets & anomaly alerts that keep it down — with real numbers.
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Start here
- AWS cost optimization — the full 2026 lever listCut your AWS bill 25–45%. The full lever list in execution order — commitments, right-sizing, Spot, Graviton, storage, data transfer, FinOps governance — with real savings %, effort, and a partner-led audit that's often AWS-funded (so it's $0).
- AWS cost optimization tools — the 2026 buyer's guideAWS's 7 free cost tools vs third-party platforms (Vantage, Kubecost, ProsperOps): what each does, free vs paid, and when a platform actually pays off.
- AWS FinOps — the operating model that makes engineering own the billAWS FinOps explained: the Inform/Optimize/Operate loop, principles, roles, practices, crawl/walk/run maturity, and KPIs — or have a partner run it, often AWS-funded.
- How to reduce AWS costs — the 15-move playbookHow to reduce AWS costs in 2026: the 15 highest-ROI moves — ranked by savings-per-effort and sequenced — with typical savings, effort, and how-to for each.
- AWS bill audit — the funded path to a lower billAn AWS bill audit turns your billing data into a dollar-quantified savings roadmap in ~1–2 weeks. Partner-led is often AWS-funded — cut your bill 20–45% for $0.
Commitments (the biggest lever)
- AWS Savings Plans — the full 2026 commitment guideAWS Savings Plans guide: Compute vs EC2 Instance vs SageMaker, 1 vs 3-year and No/Partial/All Upfront, discounts up to ~72%, Savings Plans vs Reserved Instances, coverage/utilization targets, and the laddering strategy to avoid over-committing.
- Compute Savings Plans — sizing, tradeoffs, and laddering (2026)Compute Savings Plans give up to ~66% off on-demand and apply across EC2, Fargate, and Lambda automatically. The discount tradeoff vs EC2 Instance SP, how lowest-rate-first works, sizing the hourly commitment from Cost Explorer, 1yr vs 3yr, laddering, and the over-commitment trap.
- AWS Reserved Instances — the 2026 guideAWS Reserved Instances in 2026: where they still win (RDS, ElastiCache, Redshift, OpenSearch) after EC2 moved to Savings Plans, Standard vs Convertible, 1yr vs 3yr, scope, the RI Marketplace, utilization & coverage, exchanges, and avoiding stranded RIs.
Compute & right-sizing
- EC2 right-sizing — the 2026 practitioner playbookRight-size EC2 to real utilization and cut compute 30–45%. How to read AWS Compute Optimizer, the metrics that matter (incl. memory), right-sizing RDS/EBS/Lambda, Graviton, the measure→test→apply loop — often AWS-funded, $0 to you.
- EC2 Spot Instances — the practitioner's cost guideEC2 Spot Instances are spare AWS capacity at 70–90% off with a 2-minute notice. What's safe to run on Spot, how to keep interruptions rare, Spot in EKS/Karpenter + Fargate, and the blended strategy.
- AWS Graviton migration — the full 2026 price-performance guideAWS Graviton (ARM) gives ~20–40% better price-performance. Which workloads flip with a flag vs need a recompile, the per-service savings, and a partner-run, often AWS-funded migration.
Storage & data transfer
- S3 Intelligent-Tiering — the full 2026 cost guideHow S3 Intelligent-Tiering auto-moves objects across five tiers, the monitoring-fee breakeven by object size, when it beats Standard-IA/Glacier + lifecycle, the 128 KB small-object trap, and how to enable it on existing buckets.
- S3 cost optimization — the full 2026 lever listThe full S3 cost optimization guide: every cost component, storage classes + Intelligent-Tiering, lifecycle policies, the hidden costs (incomplete multipart uploads, old versions), egress reduction with CloudFront + VPC endpoints, Storage Lens, and a partner-led audit that is often AWS-funded.
- RDS cost optimization — the 2026 database-tier guideRDS cost optimization for 2026: right-sizing, Graviton, Reserved Instances, gp3, Aurora Serverless v2 vs provisioned, snapshot cleanup — and a partner who cuts the bill, often AWS-funded for $0.
- AWS data transfer costs — the silent killer, mappedAWS data transfer pricing decoded: internet egress, cross-AZ, inter-Region, and NAT charges that hide 10–30% of your bill. Read it in the CUR and cut it 40–90%.
Visibility & governance
- AWS Budgets — setup, alerts & governance (2026)AWS Budgets guide: the four budget types, forecast alerts to email/SNS/Slack, Budget Actions that auto-stop resources, and Budgets vs Anomaly Detection vs Explorer.
- AWS Cost Explorer — read the bill, then cut it (2026)A FinOps guide to AWS Cost Explorer: the group-by views that find waste, daily vs monthly, amortized vs unblended, RI/Savings Plans coverage, forecasting, and Cost Explorer vs CUR vs BI.
- AWS Cost Anomaly Detection — setup, alerts & response (2026)AWS Cost Anomaly Detection guide: the four monitor types, alert thresholds ($ vs % vs ML), tuning false positives, the anomaly-response workflow, and Anomaly Detection vs Budgets vs Cost Explorer.
- AWS Cost Allocation Tags — the metadata layer that makes the bill allocatableAWS cost allocation tags explained: AWS-generated vs user-defined, activation, a tagging taxonomy, enforcement (Tag Policies, SCPs, IaC, Config), backfilling, and showback — or have a partner build it, often AWS-funded.