At 200 requests/user/day (totaling 30,000,000 queries/mo), running Data extraction & tagging on Claude Fable 5 costs $867,000.00 / month ($173.40 / user / mo).
Total expected API invoice for 5,000 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 20% cache hits on prompt context.
| Model | Provider | Monthly Spend (5,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Claude Fable 5 (Current) | anthropic | $867,000.00 | $173.40 | $10,404,000.00 | 1,000,000 |
| GPT-5.6 Sol | openai | $471,000.00 | $94.20 | $5,652,000.00 | 1,050,000 |
| GPT-5.6 Cyber | openai | $1,177,500.00 | $235.50 | $14,130,000.00 | 1,050,000 |
| GPT-5.5 Standard | openai | $471,000.00 | $94.20 | $5,652,000.00 | 512,000 |
| GPT-5.5 Pro | openai | $2,826,000.00 | $565.20 | $33,912,000.00 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $1,584,000.00 | $316.80 | $19,008,000.00 | 1,000,000 |
At 200 queries per user/day with Claude Fable 5, the estimated cost is $173.40 per monthly active user (MAU). Total monthly bill for 5,000 Active Users is $867,000.00.
Assuming a 20% cache hit rate on repeated system and context tokens, prompt caching saves $108,000.00 per month ($1,296,000.00/year) on Claude Fable 5.
With a direct COGS of $173.40 per user/month on Claude Fable 5, charging at least $867.00 per user/month ensures an 80%+ software gross margin.