At 40 requests/user/day (totaling 120,000,000 queries/mo), running AI coding assistant on AI21 Jamba 1.5 Large costs $4,800,000.00 / month ($48.00 / user / mo).
Total expected API invoice for 100,000 Active Users generating 120,000,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 60% cache hits on prompt context.
| Model | Provider | Monthly Spend (100,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| AI21 Jamba 1.5 Large (Current) | ai21 | $4,800,000.00 | $48.00 | $57,600,000.00 | 256,000 |
| GPT-5.6 Sol | openai | $10,512,000.00 | $105.12 | $126,144,000.00 | 1,050,000 |
| GPT-5.6 Cyber | openai | $26,280,000.00 | $262.80 | $315,360,000.00 | 1,050,000 |
| GPT-5.5 Standard | openai | $10,512,000.00 | $105.12 | $126,144,000.00 | 512,000 |
| GPT-5.5 Pro | openai | $63,072,000.00 | $630.72 | $756,864,000.00 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $32,448,000.00 | $324.48 | $389,376,000.00 | 1,000,000 |
At 40 queries per user/day with AI21 Jamba 1.5 Large, the estimated cost is $48.00 per monthly active user (MAU). Total monthly bill for 100,000 Active Users is $4,800,000.00.
Assuming a 60% cache hit rate on repeated system and context tokens, prompt caching saves $0.00 per month ($0.00/year) on AI21 Jamba 1.5 Large.
With a direct COGS of $48.00 per user/month on AI21 Jamba 1.5 Large, charging at least $240.00 per user/month ensures an 80%+ software gross margin.