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 |
r6i.large (2 vCPU, 16 GB) |
$0.152/hr |
| Capacity |
~30 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 |
m6i.large |
1 |
2 |
$88 |
| 500-1K |
m6i.large |
2 |
4 |
$176 |
| 1K-5K |
m6i.xlarge |
2 |
8 |
$350 |
| 5K-10K |
m6i.xlarge |
4 |
16 |
$700 |
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 PostgreSQL + Proxy
| Scale |
Instance |
Multi-AZ |
Replicas |
Monthly |
| 1-500 |
db.t3.large (shared) |
No |
0 |
$100 |
| 500-1K |
db.r6g.large |
Yes |
0 |
$450 |
| 1K-5K |
db.r6g.large |
Yes |
1 |
$700 |
| 5K-10K |
db.r6g.xlarge |
Yes |
1 |
$950 |
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 |
| CloudWatch |
$10-50 |
| Route 53 + ACM |
$1 |
Next: Projections & Profitability for tiered cost estimates and breakeven.