> ## Documentation Index
> Fetch the complete documentation index at: https://developers.apob.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Credits and billing

> Understand generation credit usage, eligibility, and the effect of automatic reload before paid work.

## Review the cost before submitting

Generation uses credits. Cost can vary with the operation, quality, duration,
sample count, and account's available credit categories. Check the current cost
and settings exposed by your client before submitting.

A displayed total balance does not guarantee that every credit is eligible for
the selected workflow. An operation can be rejected when the eligible balance is
insufficient, even when other credits remain.

## Automatic reload

If automatic reload is enabled for the account, a generation submission can
trigger a payment attempt to replenish credits. Review the account's billing
settings before running paid work through a connected client.

Payment activity and generation credit usage are separate records. A generation
that did not start does not, by itself, prove that an independent automatic
reload attempt was not charged. Inspect billing activity as well as generation
history when reconciling an unexpected outcome.

## Repeated operations

Creation calls are non-idempotent: repeating one can create another task and use
credits again. Reading an existing generation's status does not consume generation
credits or create more work.

Keep the original receipt, reconcile uncertain submissions, and retry a failed
status read through the same task. See [tasks and results](/concepts/tasks-and-results).

## When credits are insufficient

Check the connected account, the credit categories eligible for the selected
operation, and the account's billing activity. Resolve the cause before making
a new submission. If a payment attempt occurred, verify its outcome separately.

Do not infer a refund or a payment outcome from a task status alone. Use the
account's actual credit and billing records for reconciliation.

For current account options, open [APOB](https://app.apob.ai). For submission,
status, and output problems, follow [troubleshooting](/troubleshooting).


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