At 15 requests/user/day (totaling 4,500 queries/mo), running Translation on GPT-5.3 Codex costs $380.559 / month ($38.056 / user / mo).
Translation for a 10 active users (alpha / internal testing) audience means 150 requests per day on average, each carrying 5,000 input and 5,500 output tokens at a 15% cacheable share — so the effective per-request cost on GPT-5.3 Codex is $0.0846, of which $5.316/mo comes back from prompt caching. Per active user that's $38.056/mo — the number to hold against your pricing tier and gross margin. Charging at least $190.28/user/mo keeps gross margin at or above 80%.
Quick answer
For 10 Active Users, Translation on GPT-5.3 Codex is modeled at 4,500 requests per month, costing $380.559 per month or $38.056 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 10 Active Users generating 4,500 queries.
Direct inference cost per MAU to model your SaaS pricing tiers and gross margins.
Savings generated by exploiting 15% cache hits on prompt context.
| Model | Provider | Monthly Spend (10 Active Users) | Cost / User / Mo | Annual Spend | Context Limit |
|---|---|---|---|---|---|
| GPT-5.3 Codex (Current) | openai | $380.559 | $38.056 | $4,566.713 | 256,000 |
| DeepSeek Coder V2.5 | deepseek | $9.655 | $0.9655 | $115.857 | 128,000 |
| Codestral 2501 | mistral | $28.114 | $2.811 | $337.365 | 256,000 |
| Grok Build 0.1 | xai | $69.30 | $6.93 | $831.60 | 256,000 |
| Qwen 2.5 Coder 32B | qwen | $18.742 | $1.874 | $224.91 | 128,000 |
| GLM-5.3 (Z.ai) | zai | $136.553 | $13.655 | $1,638.63 | 1,048,576 |
At 15 queries per user/day with GPT-5.3 Codex, the estimated cost is $38.056 per monthly active user (MAU). Total monthly bill for 10 Active Users is $380.559.
Assuming a 15% cache hit rate on repeated system and context tokens, prompt caching saves $5.316 per month ($63.787/year) on GPT-5.3 Codex.
With a direct COGS of $38.056 per user/month on GPT-5.3 Codex, charging at least $190.28 per user/month ensures an 80%+ software gross margin.