At 4 requests/user/day (totaling 12,000 queries/mo), running Document summarization on Mistral Large 3 costs $147.30 / month ($1.473 / user / mo).
Total expected API invoice for 100 Active Users generating 12,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 10% cache hits on prompt context.
| Model | Provider | Monthly Spend (100 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Mistral Large 3 (Current) | mistral | $147.30 | $1.473 | $1,767.60 | 1,000,000 |
| GPT-5.6 Sol | openai | $1,581.00 | $15.81 | $18,972.00 | 1,050,000 |
| GPT-5.6 Cyber | openai | $3,952.50 | $39.525 | $47,430.00 | 1,050,000 |
| GPT-5.5 Standard | openai | $1,581.00 | $15.81 | $18,972.00 | 512,000 |
| GPT-5.5 Pro | openai | $9,486.00 | $94.86 | $113,832.00 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $6,036.00 | $60.36 | $72,432.00 | 1,000,000 |
At 4 queries per user/day with Mistral Large 3, the estimated cost is $1.473 per monthly active user (MAU). Total monthly bill for 100 Active Users is $147.30.
Assuming a 10% cache hit rate on repeated system and context tokens, prompt caching saves $13.50 per month ($162.00/year) on Mistral Large 3.
With a direct COGS of $1.473 per user/month on Mistral Large 3, charging at least $7.365 per user/month ensures an 80%+ software gross margin.