At 15 requests/user/day (totaling 4,500 queries/mo), running Translation on Microsoft Phi-4 (14B) costs $9.675 / month ($0.9675 / user / mo).
Total expected API invoice for 10 Active Users generating 4,500 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 15% cache hits on prompt context.
| Model | Provider | Monthly Spend (10 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Microsoft Phi-4 (14B) (Current) | microsoft | $9.675 | $0.9675 | $116.10 | 16,384 |
| GPT-5.6 Luna | openai | $33.592 | $3.359 | $403.11 | 1,050,000 |
| GPT-5.4 mini | openai | $125.972 | $12.597 | $1,511.663 | 256,000 |
| GPT-5.4 nano | openai | $34.83 | $3.483 | $417.96 | 128,000 |
| GPT-4o mini | openai | $17.972 | $1.797 | $215.663 | 128,000 |
| Claude Haiku 4.5 | anthropic | $143.213 | $14.321 | $1,718.55 | 1,000,000 |
At 15 queries per user/day with Microsoft Phi-4 (14B), the estimated cost is $0.9675 per monthly active user (MAU). Total monthly bill for 10 Active Users is $9.675.
Assuming a 15% cache hit rate on repeated system and context tokens, prompt caching saves $0.00 per month ($0.00/year) on Microsoft Phi-4 (14B).
With a direct COGS of $0.9675 per user/month on Microsoft Phi-4 (14B), charging at least $4.837 per user/month ensures an 80%+ software gross margin.