At 15 requests/user/day (totaling 225,000 queries/mo), running Translation on Gemma 2 9B Instruct costs $472.50 / month ($0.945 / user / mo).
Total expected API invoice for 500 Active Users generating 225,000 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 (500 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Gemma 2 9B Instruct (Current) | $472.50 | $0.945 | $5,670.00 | 8,192 | |
| GPT-5.6 Luna | openai | $1,679.625 | $3.359 | $20,155.50 | 1,050,000 |
| GPT-5.4 mini | openai | $6,298.594 | $12.597 | $75,583.125 | 256,000 |
| GPT-5.4 nano | openai | $1,741.50 | $3.483 | $20,898.00 | 128,000 |
| GPT-4o mini | openai | $898.594 | $1.797 | $10,783.125 | 128,000 |
| Claude Haiku 4.5 | anthropic | $7,160.625 | $14.321 | $85,927.50 | 1,000,000 |
At 15 queries per user/day with Gemma 2 9B Instruct, the estimated cost is $0.945 per monthly active user (MAU). Total monthly bill for 500 Active Users is $472.50.
Assuming a 15% cache hit rate on repeated system and context tokens, prompt caching saves $0.00 per month ($0.00/year) on Gemma 2 9B Instruct.
With a direct COGS of $0.945 per user/month on Gemma 2 9B Instruct, charging at least $4.725 per user/month ensures an 80%+ software gross margin.