Infrastructure Cost Components
This page breaks down the main infrastructure cost components for 4pass. For high-level summary and pricing, see Summary & Pricing.
Worker EC2 (Variable)
| Item |
Spec |
Price |
| Instance |
r7g.xlarge (Graviton, 4 vCPU, 32 GB) |
$0.258/hr |
| Capacity |
~60 tasks per instance |
64 CPU, 384-1024 MB each |
| OOM protection |
1024 MB hard limit |
Container killed, EC2 safe |
API EC2 (Semi-Fixed)
| Scale |
Instance |
Count |
Tasks |
Monthly |
| 1-500 |
m7g.large |
1 |
2 |
$74 |
| 500-1K |
m7g.large |
2 |
4 |
$149 |
| 1K-5K |
m7g.xlarge |
2 |
8 |
$298 |
| 5K-10K |
m7g.xlarge |
4 |
16 |
$596 |
ElastiCache Valkey Serverless
Auto-scales storage and compute. No instance management.
| Scale |
Storage |
ECPU/s |
Monthly |
| 1-500 |
1 GB |
1K-5K |
$91-100 |
| 500-1K |
5 GB |
10K |
~$460 |
| 1K-5K |
5 GB |
50K |
~$500 |
| 5K-10K |
10 GB |
100K |
~$1,000 |
| 50K+ |
Cluster mode |
— |
$2,000+ |
RDS Aurora Serverless v2 + Proxy
Auto-scales ACUs based on load. No instance sizing.
| Scale |
Capacity |
Multi-AZ |
Replicas |
Monthly |
| 1-500 |
0.5-2 ACU |
No |
0 |
$55 |
| 500-1K |
2-4 ACU |
Yes |
0 |
$300 |
| 1K-5K |
4-8 ACU |
Yes |
1 |
$600 |
| 5K-10K |
8-16 ACU |
Yes |
1 |
$850 |
Lambda Orchestrator
| Function |
Monthly Cost |
| worker_control |
~$3 |
| order_tasks |
~$2 |
| maintenance + worker |
~$3 |
| pool_manager |
~$0.50 |
| Total |
~$8.50 |
Other Fixed Costs
| Service |
Monthly |
| ALB |
$16-365 (scales with LCU) |
| VPC Endpoint |
$28 |
| WAF |
$5-50 |
| Secrets Manager |
$1.20 |
| ECR |
$5-20 |
| SES |
$1-780 (scales with users) |
| CloudWatch |
$10-50 |
| Route 53 + ACM |
$1 |
Next: Projections & Profitability for tiered cost estimates and breakeven.