At 20 requests/user/day (totaling 300,000 queries/mo), running Content generation on Grok 4.6 Flagship costs $2,532.00 / month ($5.064 / user / mo).
Total expected API invoice for 500 Active Users generating 300,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 30% cache hits on prompt context.
| Model | Provider | Monthly Spend (500 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Grok 4.6 Flagship (Current) | xai | $2,532.00 | $5.064 | $30,384.00 | 500,000 |
| GPT-5.6 Sol | openai | $11,676.00 | $23.352 | $140,112.00 | 1,050,000 |
| GPT-5.6 Cyber | openai | $29,190.00 | $58.38 | $350,280.00 | 1,050,000 |
| GPT-5.5 Standard | openai | $11,676.00 | $23.352 | $140,112.00 | 512,000 |
| GPT-5.5 Pro | openai | $70,056.00 | $140.112 | $840,672.00 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $32,304.00 | $64.608 | $387,648.00 | 1,000,000 |
At 20 queries per user/day with Grok 4.6 Flagship, the estimated cost is $5.064 per monthly active user (MAU). Total monthly bill for 500 Active Users is $2,532.00.
Assuming a 30% cache hit rate on repeated system and context tokens, prompt caching saves $108.00 per month ($1,296.00/year) on Grok 4.6 Flagship.
With a direct COGS of $5.064 per user/month on Grok 4.6 Flagship, charging at least $25.32 per user/month ensures an 80%+ software gross margin.