At 40 requests/user/day (totaling 6,000,000 queries/mo), running AI coding assistant on Qwen3 Coder Next (OpenRouter) costs $16,080.00 / month ($3.216 / user / mo).
Total expected API invoice for 5,000 Active Users generating 6,000,000 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 60% cache hits on prompt context.
| Model | Provider | Monthly Spend (5,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Qwen3 Coder Next (OpenRouter) (Current) | qwen | $16,080.00 | $3.216 | $192,960.00 | 262,144 |
| GPT-5.3 Codex | openai | $225,960.00 | $45.192 | $2,711,520.00 | 256,000 |
| DeepSeek Coder V2.5 | deepseek | $7,996.80 | $1.599 | $95,961.60 | 128,000 |
| Codestral 2501 | mistral | $20,736.00 | $4.147 | $248,832.00 | 256,000 |
| Grok Build 0.1 | xai | $61,440.00 | $12.288 | $737,280.00 | 256,000 |
| Qwen 2.5 Coder 32B | qwen | $13,824.00 | $2.765 | $165,888.00 | 128,000 |
At 40 queries per user/day with Qwen3 Coder Next (OpenRouter), the estimated cost is $3.216 per monthly active user (MAU). Total monthly bill for 5,000 Active Users is $16,080.00.
Assuming a 60% cache hit rate on repeated system and context tokens, prompt caching saves $2,160.00 per month ($25,920.00/year) on Qwen3 Coder Next (OpenRouter).
With a direct COGS of $3.216 per user/month on Qwen3 Coder Next (OpenRouter), charging at least $16.08 per user/month ensures an 80%+ software gross margin.