At 40 requests/user/day (totaling 60,000,000 queries/mo), running AI coding assistant on Grok Build 0.1 costs $614,400.00 / month ($12.288 / user / mo).
Total expected API invoice for 50,000 Active Users generating 60,000,000 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 (50,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Grok Build 0.1 (Current) | xai | $614,400.00 | $12.288 | $7,372,800.00 | 256,000 |
| GPT-5.3 Codex | openai | $2,259,600.00 | $45.192 | $27,115,200.00 | 256,000 |
| DeepSeek Coder V2.5 | deepseek | $79,968.00 | $1.599 | $959,616.00 | 128,000 |
| Codestral 2501 | mistral | $207,360.00 | $4.147 | $2,488,320.00 | 256,000 |
| Qwen 2.5 Coder 32B | qwen | $138,240.00 | $2.765 | $1,658,880.00 | 128,000 |
| Ox Alpha (Stealth) | openrouter | $0.00 | $0.00 | $0.00 | 1,048,576 |
At 40 queries per user/day with Grok Build 0.1, the estimated cost is $12.288 per monthly active user (MAU). Total monthly bill for 50,000 Active Users is $614,400.00.
Assuming a 60% cache hit rate on repeated system and context tokens, prompt caching saves $345,600.00 per month ($4,147,200.00/year) on Grok Build 0.1.
With a direct COGS of $12.288 per user/month on Grok Build 0.1, charging at least $61.44 per user/month ensures an 80%+ software gross margin.