At 200 requests/user/day (totaling 300,000,000 queries/mo), running Data extraction & tagging on DeepSeek V3 (Chat) costs $89,880.00 / month ($1.798 / user / mo).
Total expected API invoice for 50,000 Active Users generating 300,000,000 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 (50,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| DeepSeek V3 (Chat) (Current) | deepseek | $89,880.00 | $1.798 | $1,078,560.00 | 64,000 |
| GPT-5.6 Luna | openai | $188,400.00 | $3.768 | $2,260,800.00 | 1,050,000 |
| GPT-5.4 mini | openai | $706,500.00 | $14.13 | $8,478,000.00 | 256,000 |
| GPT-5.4 nano | openai | $192,150.00 | $3.843 | $2,305,800.00 | 128,000 |
| GPT-4o mini | openai | $126,000.00 | $2.52 | $1,512,000.00 | 128,000 |
| Claude Haiku 4.5 | anthropic | $867,000.00 | $17.34 | $10,404,000.00 | 1,000,000 |
At 200 queries per user/day with DeepSeek V3 (Chat), the estimated cost is $1.798 per monthly active user (MAU). Total monthly bill for 50,000 Active Users is $89,880.00.
Assuming a 20% cache hit rate on repeated system and context tokens, prompt caching saves $15,120.00 per month ($181,440.00/year) on DeepSeek V3 (Chat).
With a direct COGS of $1.798 per user/month on DeepSeek V3 (Chat), charging at least $8.988 per user/month ensures an 80%+ software gross margin.