# Billing & storage

Check applicable costs before submitting and handle retries and results carefully.

## How pricing is determined

Models may be billed by image specification, duration, tokens or points. Consult your account’s catalog. For NAI, inspect the estimate response for payment method, price and allowance usage. All charges settle in USD.

[View model pricing](https://noveadream.com/developers/en/pricing/)

## NAI cost & membership

The base fee is not necessarily the final price. Size, steps, references and membership benefits can affect the quote. The web workspace requires membership for V5; API callers without membership can pay from their wallet.

## Avoid duplicate generation

Reuse Idempotency-Key for image/video retries and client_request_id for NAI retries. Save task IDs and resume polling. A timeout or disconnect does not by itself mean a failed or refunded task.

## Save your results

Download successful results to your own storage. Do not treat temporary URLs as permanent, or forward this service’s Authorization header to third-party download hosts.