At 6 requests/user/day (totaling 180,000 queries/mo), running Customer support chatbot on Together AI — GPT-OSS-20B costs $44.10 / month ($0.0441 / user / mo).
Total expected API invoice for 1,000 Active Users generating 180,000 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 (1,000 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| Together AI — GPT-OSS-20B (Current) | together | $44.10 | $0.0441 | $529.20 | 32,768 |
| GPT-5.6 Luna | openai | $122.22 | $0.1222 | $1,466.64 | 1,050,000 |
| GPT-5.4 mini | openai | $458.325 | $0.4583 | $5,499.90 | 256,000 |
| GPT-5.4 nano | openai | $125.37 | $0.1254 | $1,504.44 | 128,000 |
| GPT-4o mini | openai | $99.225 | $0.0992 | $1,190.70 | 128,000 |
| Claude Haiku 4.5 | anthropic | $548.10 | $0.5481 | $6,577.20 | 1,000,000 |
At 6 queries per user/day with Together AI — GPT-OSS-20B, the estimated cost is $0.0441 per monthly active user (MAU). Total monthly bill for 1,000 Active Users is $44.10.
Assuming a 70% cache hit rate on repeated system and context tokens, prompt caching saves $0.00 per month ($0.00/year) on Together AI — GPT-OSS-20B.
With a direct COGS of $0.0441 per user/month on Together AI — GPT-OSS-20B, charging at least $0.2205 per user/month ensures an 80%+ software gross margin.