Financial Summary
Cost Progression
Phase 4 Cost Breakdown
| Item | EUR/month |
|---|---|
| AWS EC2 + S3 + networking | 80 |
| Vast.ai H200 interruptible (252h/month inference) | 305 |
| Vast.ai H200 on-demand (108h/month fine-tuning) | 241 |
| OpenRouter (overflow/fallback) | 30 est. |
| Total | ~656 |
Break-Even Analysis
- Phase 0-1: Infrastructure investment, no revenue yet
- Phase 2: Profitable at ~5 paying users (10 EUR/month each)
- Phase 3: Profitable at ~15 paying users or 2-3 Pro users (100 EUR/month)
- Phase 4: Self-hosted GPU pays for itself when OpenRouter spend would exceed 545 EUR/month