At 200 requests/user/day (totaling 600,000 queries/mo), running Data extraction & tagging on Qwen3.8 27B (OpenRouter) costs $954.00 / month ($9.54 / user / mo).
Data extraction & tagging for a 100 active users (public launch) audience means 20,000 requests per day on average, each carrying 2,000 input and 250 output tokens at a 20% cacheable share — so the effective per-request cost on Qwen3.8 27B (OpenRouter) is $0.00159, of which $0.00/mo comes back from prompt caching. Per active user that's $9.54/mo — the number to hold against your pricing tier and gross margin. Charging at least $47.70/user/mo keeps gross margin at or above 80%.
Quick answer
For 100 Active Users, Data extraction & tagging on Qwen3.8 27B (OpenRouter) is modeled at 600,000 requests per month, costing $954.00 per month or $9.54 per active user.
Method & trust
This projection combines the selected active-user tier, requests per user per day, input/output tokens per request, and the modeled cache share. It is an operating estimate, not a provider invoice; production traffic and retries should be measured against it.
Total expected API invoice for 100 Active Users generating 600,000 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 (100 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Qwen3.8 27B (OpenRouter) (Current) | qwen | $954.00 | $9.54 | $11,448.00 | 1,000,000 |
| GPT-5.6 Terra | openai | $3,768.00 | $37.68 | $45,216.00 | 1,050,000 |
| GPT-5.4 Workhorse | openai | $4,710.00 | $47.10 | $56,520.00 | 256,000 |
| o3-mini | openai | $1,848.00 | $18.48 | $22,176.00 | 200,000 |
| o4-mini | openai | $1,782.00 | $17.82 | $21,384.00 | 256,000 |
| o1-mini | openai | $1,848.00 | $18.48 | $22,176.00 | 128,000 |
At 200 queries per user/day with Qwen3.8 27B (OpenRouter), the estimated cost is $9.54 per monthly active user (MAU). Total monthly bill for 100 Active Users is $954.00.
Assuming a 20% cache hit rate on repeated system and context tokens, prompt caching saves $0.00 per month ($0.00/year) on Qwen3.8 27B (OpenRouter).
With a direct COGS of $9.54 per user/month on Qwen3.8 27B (OpenRouter), charging at least $47.70 per user/month ensures an 80%+ software gross margin.