At 6 requests/user/day (totaling 900,000 queries/mo), running Customer support chatbot on DeepSeek Coder V2.5 costs $251.37 / month ($0.0503 / user / mo).
Total expected API invoice for 5,000 Active Users generating 900,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 70% cache hits on prompt context.
| Model | Provider | Monthly Spend (5,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| DeepSeek Coder V2.5 (Current) | deepseek | $251.37 | $0.0503 | $3,016.44 | 128,000 |
| GPT-5.3 Codex | openai | $6,449.625 | $1.29 | $77,395.50 | 256,000 |
| Codestral 2501 | mistral | $633.15 | $0.1266 | $7,597.80 | 256,000 |
| Grok Build 0.1 | xai | $2,016.00 | $0.4032 | $24,192.00 | 256,000 |
| Qwen 2.5 Coder 32B | qwen | $422.10 | $0.0844 | $5,065.20 | 128,000 |
| DeepInfra — Qwen 2.5 Coder 32B | deepinfra | $327.60 | $0.0655 | $3,931.20 | 128,000 |
At 6 queries per user/day with DeepSeek Coder V2.5, the estimated cost is $0.0503 per monthly active user (MAU). Total monthly bill for 5,000 Active Users is $251.37.
Assuming a 70% cache hit rate on repeated system and context tokens, prompt caching saves $277.83 per month ($3,333.96/year) on DeepSeek Coder V2.5.
With a direct COGS of $0.0503 per user/month on DeepSeek Coder V2.5, charging at least $0.2514 per user/month ensures an 80%+ software gross margin.