Credits
The unit of metered work, what consumes it, and why no number on this page is a charge.
Credits are the unit of metered work. Model calls, tool calls and voice minutes consume them. A plan grants a monthly allowance, balances are held against your account rather than a workspace, and an agent’s spending ceiling is expressed against the same unit.
What the charge is calculated from
The authoritative figure is calculated server-side at the rate version live when the request starts. Not when it finishes, and not from anything displayed in the interface beforehand. That ordering means a long-running job is charged at the rate it began under, and it means the indicative figures shown in the model picker are comparisons rather than quotes.
What consumes credits
| Activity | Roughly proportional to |
|---|---|
| A model call | Input and output tokens, multiplied by the model’s rate. The spread across the six models is roughly nine to one. |
| A tool call | The call itself, not the size of what it returns. |
| A voice minute | Wall-clock minutes, against the add-on’s included bundle first. |
| A retry | The same as the attempt it retries. A run that failed twice was metered twice. |