On this page

## Pay-as-you-go

Pay-as-you-go is a credit-based billing model where you are charged per second of generated output rather than against a monthly quota. It is designed for high-volume or unpredictable workloads where a fixed subscription may not fit.

**How it works:**

- Add credits to your wallet by topping up from your [account settings](/content/app/account/index.html).
- Each generation deducts from your credit balance at the rate for that model.
- Credits do not expire.
- Downloads are unlimited — only generation is billed.

**How to activate:**

1. Sign in and go to [uthana.com/app/account](/content/app/account/index.html).
2. Navigate to the **Billing** section.
3. Click **Activate pay-as-you-go** and follow the prompts.

For the full list of per-model rates, see [uthana.com/pricing](/content/pricing/index.html).

## Subscription plans

Subscription plans include a fixed monthly quota of motion downloads and character slots, but generation is unlimited. See all plans and pricing at [uthana.com/pricing](/content/pricing/index.html).

- [Pay-as-you-go](/content/docs/api/pricing#pay-as-you-go/index.html)
- [Subscription plans](/content/docs/api/pricing#subscription-plans/index.html)