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14.16 Cost Modeling & Multi-Provider Economics
1. Monthly Cost Estimate (10M Notifications/Month)
| Component | Provider / Resource | Monthly Cost (Est.) |
|---|---|---|
| Compute | 2x AWS ECS Fargate Tasks (2 vCPU, 4GB RAM) | $75.00 |
| Database | 1x AWS RDS PostgreSQL (db.t4g.medium, Multi-AZ) | $90.00 |
| Email Delivery | SendGrid / AWS SES (10M emails @ $0.10 / 1,000) | $1,000.00 |
| SMS Delivery | Twilio / Vonage (100,000 OTP SMS @ $0.0079) | $790.00 |
| Bandwidth & Logging | AWS Data Transfer & CloudWatch Logs | $45.00 |
| Total Monthly Cost | $2,000.00 / month |
- Cost Driver: Third-party SMS and Email carrier fees dominate 90% of operating expenses.
- Cost Optimization: Our deterministic
ProviderSelectorautomatically routes traffic to AWS SES ($0.10 / 1,000) over SendGrid ($0.25 / 1,000) for non-critical marketing blasts, slashing monthly delivery spend by over 50%.
2. Say It Out Loud
"At 10 million notifications monthly, infrastructure compute and database costs represent only ten percent of total expenditure, while upstream provider fees account for ninety percent. Because our
ProviderSelectorincorporates cost per message into its deterministic sorting algorithm, we route high-volume batch emails to low-cost providers like AWS SES while reserving premium providers like SendGrid for critical transactional alerts, reducing monthly vendor expenses by over fifty percent."