Estimate monthly bills across models from your daily active users, messages per user, and conversation type — get your budget right before you ship.
Daily active users
Messages per user / day
Conversation type
Q: How close is this estimate to my real bill?
A: The estimate uses typical token-length heuristics for three conversation types. Real conversations vary in length, so expect roughly ±15% overall variance — plenty accurate for budget planning and model comparison. For exact numbers, check the Usage page in your dashboard.
Q: What happens to the bill as my user base grows?
A: Billing is pay-as-you-go with no minimum spend or tiered plans to lock in capacity — your bill scales up or down with actual usage. Just re-run this tool with your new numbers whenever your scale changes.
Q: Can mixing multiple models save more?
A: Yes — a common production pattern is routing by task complexity: cheaper models for simple queries, flagship models only when needed. Mixing models usually costs less than using one model for everything. Use the Model Recommender to see which tier fits each scenario.
Claude / GPT / Gemini — all accessible via one account. Free credits on signup.