At 10 requests/user/day (totaling 30,000,000 queries/mo), running RAG / search-augmented answers on Qwen 2.5 Turbo costs $9,600.00 / month ($0.096 / user / mo).
Total expected API invoice for 100,000 Active Users generating 30,000,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 50% cache hits on prompt context.
| Model | Provider | Monthly Spend (100,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Qwen 2.5 Turbo (Current) | qwen | $9,600.00 | $0.096 | $115,200.00 | 1,000,000 |
| GPT-5.6 Luna | openai | $44,400.00 | $0.444 | $532,800.00 | 1,050,000 |
| GPT-5.4 mini | openai | $166,500.00 | $1.665 | $1,998,000.00 | 256,000 |
| GPT-5.4 nano | openai | $45,150.00 | $0.4515 | $541,800.00 | 128,000 |
| GPT-4o mini | openai | $36,000.00 | $0.36 | $432,000.00 | 128,000 |
| Claude Haiku 4.5 | anthropic | $207,000.00 | $2.07 | $2,484,000.00 | 1,000,000 |
At 10 queries per user/day with Qwen 2.5 Turbo, the estimated cost is $0.096 per monthly active user (MAU). Total monthly bill for 100,000 Active Users is $9,600.00.
Assuming a 50% cache hit rate on repeated system and context tokens, prompt caching saves $5,400.00 per month ($64,800.00/year) on Qwen 2.5 Turbo.
With a direct COGS of $0.096 per user/month on Qwen 2.5 Turbo, charging at least $0.48 per user/month ensures an 80%+ software gross margin.