At 6 requests/user/day (totaling 90,000 queries/mo), running Customer support chatbot on DeepSeek Coder V2.5 costs $25.137 / month ($0.0503 / user / mo).
Total expected API invoice for 500 Active Users generating 90,000 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 (500 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| DeepSeek Coder V2.5 (Current) | deepseek | $25.137 | $0.0503 | $301.644 | 128,000 |
| GPT-5.3 Codex | openai | $644.963 | $1.29 | $7,739.55 | 256,000 |
| Codestral 2501 | mistral | $63.315 | $0.1266 | $759.78 | 256,000 |
| Grok Build 0.1 | xai | $201.60 | $0.4032 | $2,419.20 | 256,000 |
| Qwen 2.5 Coder 32B | qwen | $42.21 | $0.0844 | $506.52 | 128,000 |
| Ox Alpha (Stealth) | openrouter | $0.00 | $0.00 | $0.00 | 1,048,576 |
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 500 Active Users is $25.137.
Assuming a 70% cache hit rate on repeated system and context tokens, prompt caching saves $27.783 per month ($333.396/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.