At 200 requests/user/day (totaling 60,000 queries/mo), running Data extraction & tagging on GPT-5.5 Standard costs $942.00 / month ($94.20 / user / mo).
Total expected API invoice for 10 Active Users generating 60,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 20% cache hits on prompt context.
| Model | Provider | Monthly Spend (10 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| GPT-5.5 Standard (Current) | openai | $942.00 | $94.20 | $11,304.00 | 512,000 |
| GPT-5.6 Sol | openai | $942.00 | $94.20 | $11,304.00 | 1,050,000 |
| GPT-5.6 Cyber | openai | $2,355.00 | $235.50 | $28,260.00 | 1,050,000 |
| GPT-5.5 Pro | openai | $5,652.00 | $565.20 | $67,824.00 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $3,168.00 | $316.80 | $38,016.00 | 1,000,000 |
| o3 (Reasoning Frontier) | openai | $1,584.00 | $158.40 | $19,008.00 | 1,050,000 |
At 200 queries per user/day with GPT-5.5 Standard, the estimated cost is $94.20 per monthly active user (MAU). Total monthly bill for 10 Active Users is $942.00.
Assuming a 20% cache hit rate on repeated system and context tokens, prompt caching saves $108.00 per month ($1,296.00/year) on GPT-5.5 Standard.
With a direct COGS of $94.20 per user/month on GPT-5.5 Standard, charging at least $471.00 per user/month ensures an 80%+ software gross margin.