# Balance

## Add credits

Visit [Billing](https://seedrouter.ai/billing) to view your balance and add credits. SeedRouter uses one-time credit purchases; credits do not expire.

## Rates and usage

Current model rates are available on the [models page](https://seedrouter.ai/models). GPT Image 2 is billed by token usage. Prompt length, reference images, quality, dimensions, and image count can affect the final charge.

The Playground estimate is an estimate, not a fixed quote. View final charges in your account usage history. Public task responses do not include monetary fields.

## Insufficient balance

Error code `30001` means there are not enough credits to run the request. Add credits before submitting again.

Failed tasks are not charged. A connection timeout alone does not establish that a task failed; query the existing task ID to check its final state.

## View your history

See [Usage](https://seedrouter.ai/usage) for charges and [Tasks](https://seedrouter.ai/tasks) for task history.