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Gayathri.R
Gayathri.R

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"Understanding AWS Pricing Models – Simplified for Developers"

Introduction to AWS Pricing

 Pay-as-you-go cloud computing platform

 Flexible, cost-effective pricing for different services

 Billing based on actual usage — no upfront commitments
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AWS Pricing Principles

 Pay-as-you-go – Pay only for what you use
 Save when you commit – Use Reserved Instances or Savings Plans
 Pay less by using more – Volume-based discounts
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Key AWS Pricing Models

On-Demand

Reserved Instances

Savings Plans

Spot Instances

Free Tier

On-Demand Pricing

Pay by the hour or second

No upfront cost

Best for short-term, unpredictable workloads

Reserved Instances

Commit to 1 or 3 years

Significant discounts (up to 75%)

Best for steady-state workloads

Types: Standard & Convertible

Savings Plans

Flexible pricing model

Commit to a consistent usage (e.g., $/hr)

Covers EC2, Fargate, Lambda

Up to 72% savings over On-Demand

Spot Instances

Use unused EC2 capacity

Up to 90% discount

Ideal for fault-tolerant or flexible applications

AWS Free Tier

12-month free tier for new accounts

Always-free offers (e.g., Lambda, DynamoDB)

Good for learning & testing AWS services
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*AWS Services & Pricing Units
*

EC2: Per second/hour

S3: Per GB stored + requests

Lambda: Requests + duration

RDS: Instance hours + storage

AWS Pricing Calculator

Tool to estimate costs

Customize based on region, usage, and services
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*Cost Optimization Tips
*

Monitor with AWS Cost Explorer

Set budgets and alerts
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Use Auto Scaling

Choose correct instance types

Leverage Free Tier and Spot Instances
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*Conclusion
*

AWS offers flexible pricing to match every use case

Choosing the right model helps optimize costs

Regular cost monitoring is key
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