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EC2 On-Demand is a matrix of family, size, OS, tenancy, and region. In us-east-1 (June 2026) a m7g.large Linux runs $0.0816/hr vs a g5.xlarge GPU at $1.006/hr. Graviton5 M9g/C9g now GA for new fleets.
Kevin W.Fargate bills per vCPU-second and GB-second, not per task hour. In us-east-1 a 0.25 vCPU / 0.5 GB task runs ~$9/mo; a 4 vCPU / 16 GB task ~$170/mo. Prefer arm64 + C9g/C8g when moving steady-state to ECS on EC2.
Kevin W.A 22-account AWS Organization spent $1.1M/yr on Compute Savings Plans but applied only 61% to production. Dev sandboxes burned the commit while prod stayed On-Demand. Group Sharing (April 2026) fixed attribution. The waste was $312k/yr before they restructured purchases.
Kevin W.CUR 2.0 (generally available 2024, default for new exports in 2025) adds line-item resource IDs and Savings Plan attribution columns Athena needs for serious chargeback. A standard FinOps query pack answers top-10 services, untagged spend, and SP coverage in under 60 seconds.
Kevin W.Compute Optimizer added 32-day lookback for cyclic workloads in 2025, which matters for monthly batch jobs that looked oversized on 14-day windows. In a June 2026 audit of a $48k/mo account, rightsizing recommendations alone modeled $11k/mo savings at low performance risk.
Kevin W.Aurora bills instance hours plus storage plus I/O, or storage at a 125% premium with I/O bundled (I/O-Optimized). Serverless v2 at $0.12 per ACU-hour wins on variable workloads, loses on steady traffic above roughly 2 ACU average. Global Database doubles the price per secondary region plus replicated-write fees. Backtrack adds per-change-record cost most teams never factor in.
Kevin W.Bedrock AgentCore is metered across twelve distinct components: Runtime, Browser, Code Interpreter, Gateway, Identity, Memory (two tiers), Observability, Evaluations, Payments, Search, and the underlying model spend. Two of them drive 80% of the bill.
Kevin W.CloudFront bills $0.085/GB egress in North America tiered down to $0.020/GB at extreme volume, plus $0.0075 to $0.0100 per 10K requests, plus origin egress. Regional price classes drop the bill 30 to 60% by skipping expensive geographies. Real-time logs bill $0.01 per million entries plus a Kinesis data stream, so sample them on high-traffic sites. Lambda@Edge is far more expensive than CloudFront Functions.
Kevin W.CloudWatch bills across ten distinct dimensions: Logs ingestion at $0.50/GB, Logs storage, custom metrics with cardinality multipliers, alarms tiered by resolution and type, dashboards at $3 each, Synthetics canary runs, RUM events, X-Ray traces, Container Insights, and cross-region replication. Logs ingestion is the largest line on most accounts.
Kevin W.DynamoDB on-demand bills $0.625 per million writes and $0.125 per million reads: pay-per-request convenience with no capacity planning. Provisioned at $0.00065/WCU-hour wins on steady traffic above ~30% utilization. Every GSI doubles the write cost, IA tier cuts storage 60% but adds 25% to request fees, and Global Tables compound the bill per region.
Kevin W.EBS is billed across six dimensions: gp3 storage at $0.08/GB-month, separate IOPS and throughput line items, io2 Block Express, snapshots at $0.05/GB-month, fast snapshot restore at $0.75/DSU-hour. Deleting an EC2 instance never stops the volume bill, and the gp2→gp3 migration is one of the cleanest 20% wins in cloud cost.
Kevin W.ECR storage is $0.10/GB-month, about 4× S3 Standard. Cross-region replication doubles or triples that. Enhanced scanning bills $0.09 per image scanned, on every push. Pull-through caches for Docker Hub and ECR Public add storage plus data-transfer-in. A 200-service organization with 10 environments and 3 regions can spend more on ECR than on the EKS clusters pulling from it.
Kevin W.
