At 200 requests/user/day (totaling 300,000 queries/mo), running Data extraction & tagging on DeepSeek V4 Flash costs $311.88 / month ($6.238 / user / mo).
Total expected API invoice for 50 Active Users generating 300,000 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 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| DeepSeek V4 Flash (Current) | deepseek | $311.88 | $6.238 | $3,742.56 | 1,000,000 |
| GPT-5.6 Luna | openai | $188.40 | $3.768 | $2,260.80 | 1,050,000 |
| GPT-5.4 mini | openai | $706.50 | $14.13 | $8,478.00 | 256,000 |
| GPT-5.4 nano | openai | $192.15 | $3.843 | $2,305.80 | 128,000 |
| GPT-4o mini | openai | $126.00 | $2.52 | $1,512.00 | 128,000 |
| Claude Haiku 4.5 | anthropic | $867.00 | $17.34 | $10,404.00 | 1,000,000 |
At 200 queries per user/day with DeepSeek V4 Flash, the estimated cost is $6.238 per monthly active user (MAU). Total monthly bill for 50 Active Users is $311.88.
Assuming a 20% cache hit rate on repeated system and context tokens, prompt caching saves $51.12 per month ($613.44/year) on DeepSeek V4 Flash.
With a direct COGS of $6.238 per user/month on DeepSeek V4 Flash, charging at least $31.188 per user/month ensures an 80%+ software gross margin.