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Firedrill uses credits for the cloud resources and model calls it runs for you, such as simulated users, synthetic tools and scoring. You always see an estimate before anything that uses credits starts.

How it works

  1. Estimate. firedrill plan, firedrill tools start and reassess show an estimate and a maximum before you approve.
  2. Reserve. When you approve, the estimate is reserved from your organization’s credits.
  3. Release. When the work is settled, unused credits are released.
A credit is not a fixed number of drills. The estimate depends on the scenarios, repetitions, tools and scoring in your world.

What is not charged

  • Your agent’s own model calls. If your agent uses your model API key, your model provider bills you directly.
  • Running your agent on your machine.

Credit approval

Owners can turn on Credit approval in Settings → Billing. Starting work then needs an extra budget confirmation. In the CLI, add --approve-credits.

See your usage

Open Settings → Billing to see your credits, where they came from, when they expire, and your usage history. You can also redeem an event code there.
If you run out, commands fail with simulation_balance_insufficient. Add credits in Settings → Billing.

Run drills

Where the estimate appears.

Team and roles

Who can change billing settings.