Free calculator

What is your AI really costing you?

Estimate your monthly API bill by the numbers — then see what a runaway loop could cost before anyone notices.

Model

Requests / day

Input tokens / request

Output tokens / request

Per day

Per month (30d)

⚠ The number nobody budgets for

A stuck loop, a retry storm, or a leaked key runs your usage 20× for 3 days before you catch it. That surprise, on top of your normal bill:

That lands on your card before the invoice arrives.

TokenBrake is a circuit breaker for exactly this. Set a budget; a runaway is stopped at the limit — not on your statement.

Cap your bill — $99/yr → See how it works

Estimates use current published per-token rates (standard tier, short context) for each provider and are for guidance only — your invoice is the source of truth. Prices change; caching, batch, priority tiers, and very large contexts can shift the real cost. TokenBrake meters your actual usage live.

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TokenBrake — a circuit breaker for your AI bill · an Akkad Empires product.