At 15 requests/user/day (totaling 2,250,000 queries/mo), running Translation on DeepSeek V4 Flash costs $20,566.125 / month ($4.113 / user / mo).
Total expected API invoice for 5,000 Active Users generating 2,250,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 15% cache hits on prompt context.
| Model | Provider | Monthly Spend (5,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| DeepSeek V4 Flash (Current) | deepseek | $20,566.125 | $4.113 | $246,793.50 | 1,000,000 |
| GPT-5.6 Luna | openai | $16,796.25 | $3.359 | $201,555.00 | 1,050,000 |
| GPT-5.4 mini | openai | $62,985.937 | $12.597 | $755,831.25 | 256,000 |
| GPT-5.4 nano | openai | $17,415.00 | $3.483 | $208,980.00 | 128,000 |
| GPT-4o mini | openai | $8,985.938 | $1.797 | $107,831.25 | 128,000 |
| Claude Haiku 4.5 | anthropic | $71,606.25 | $14.321 | $859,275.00 | 1,000,000 |
At 15 queries per user/day with DeepSeek V4 Flash, the estimated cost is $4.113 per monthly active user (MAU). Total monthly bill for 5,000 Active Users is $20,566.125.
Assuming a 15% cache hit rate on repeated system and context tokens, prompt caching saves $718.875 per month ($8,626.50/year) on DeepSeek V4 Flash.
With a direct COGS of $4.113 per user/month on DeepSeek V4 Flash, charging at least $20.566 per user/month ensures an 80%+ software gross margin.