At 200 requests/user/day (totaling 6,000,000 queries/mo), running Data extraction & tagging on GPT-5.5 Standard costs $94,200.00 / month ($94.20 / user / mo).
Total expected API invoice for 1,000 Active Users generating 6,000,000 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 (1,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| GPT-5.5 Standard (Current) | openai | $94,200.00 | $94.20 | $1,130,400.00 | 512,000 |
| GPT-5.6 Sol | openai | $94,200.00 | $94.20 | $1,130,400.00 | 1,050,000 |
| GPT-5.6 Cyber | openai | $235,500.00 | $235.50 | $2,826,000.00 | 1,050,000 |
| GPT-5.5 Pro | openai | $565,200.00 | $565.20 | $6,782,400.00 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $316,800.00 | $316.80 | $3,801,600.00 | 1,000,000 |
| o3 (Reasoning Frontier) | openai | $158,400.00 | $158.40 | $1,900,800.00 | 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 1,000 Active Users is $94,200.00.
Assuming a 20% cache hit rate on repeated system and context tokens, prompt caching saves $10,800.00 per month ($129,600.00/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.