At 15 requests/user/day (totaling 4,500 queries/mo), running Translation on Gemini 3.6 Flash costs $214.819 / month ($21.482 / 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 |
|---|---|---|---|---|---|
| Gemini 3.6 Flash (Current) | $214.819 | $21.482 | $2,577.825 | 1,000,000 | |
| GPT-5.6 Terra | openai | $335.925 | $33.593 | $4,031.10 | 1,050,000 |
| GPT-5.4 Workhorse | openai | $419.906 | $41.991 | $5,038.875 | 256,000 |
| o3-mini | openai | $131.794 | $13.179 | $1,581.525 | 200,000 |
| o4-mini | openai | $130.866 | $13.087 | $1,570.387 | 256,000 |
| o1-mini | openai | $131.794 | $13.179 | $1,581.525 | 128,000 |
At 15 queries per user/day with Gemini 3.6 Flash, the estimated cost is $21.482 per monthly active user (MAU). Total monthly bill for 10 Active Users is $214.819.
Assuming a 15% cache hit rate on repeated system and context tokens, prompt caching saves $4.556 per month ($54.675/year) on Gemini 3.6 Flash.
With a direct COGS of $21.482 per user/month on Gemini 3.6 Flash, charging at least $107.409 per user/month ensures an 80%+ software gross margin.