At 6 requests/user/day (totaling 450,000 queries/mo), running Customer support chatbot on Amazon Nova Micro costs $48.234 / month ($0.0193 / user / mo).
Total expected API invoice for 2,500 Active Users generating 450,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 70% cache hits on prompt context.
| Model | Provider | Monthly Spend (2,500 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Amazon Nova Micro (Current) | amazon | $48.234 | $0.0193 | $578.813 | 128,000 |
| GPT-5.6 Luna | openai | $305.55 | $0.1222 | $3,666.60 | 1,050,000 |
| GPT-5.4 mini | openai | $1,145.813 | $0.4583 | $13,749.75 | 256,000 |
| GPT-5.4 nano | openai | $313.425 | $0.1254 | $3,761.10 | 128,000 |
| GPT-4o mini | openai | $248.063 | $0.0992 | $2,976.75 | 128,000 |
| Claude Haiku 4.5 | anthropic | $1,370.25 | $0.5481 | $16,443.00 | 1,000,000 |
At 6 queries per user/day with Amazon Nova Micro, the estimated cost is $0.0193 per monthly active user (MAU). Total monthly bill for 2,500 Active Users is $48.234.
Assuming a 70% cache hit rate on repeated system and context tokens, prompt caching saves $28.941 per month ($347.288/year) on Amazon Nova Micro.
With a direct COGS of $0.0193 per user/month on Amazon Nova Micro, charging at least $0.0965 per user/month ensures an 80%+ software gross margin.