# How AI credits work

Canonical page: https://www.questionpunk.com/support/ai-credits

What AI credits pay for, how many each plan includes, and how to buy more.

Time: 3 minutes

Level: Beginner

Audience: Researchers, Admins, Org owners

## Steps

### 1. Check your balance

Click your profile icon, then go to **Settings > Billing**. The balance card shows how many credits you have left, split into free monthly credits and credits you bought.

### 2. See what uses credits

Text AI, such as interview follow-ups and analysis, is charged by model and by the number of tokens used. Voice interviews are charged per minute by model, with a 30-second minimum.

### 3. Buy more credits

On the Billing page, click **Buy more credits** and choose an amount. Credits you buy don’t expire. Your plan’s monthly credits are used first.

### 4. Cap what one survey can spend

Set an [AI budget cap](https://www.questionpunk.com/support/ai-budget-cap) in the survey’s settings to limit its AI spending.

## Details

**Monthly allowance:** The Free plan includes 3,000 credits ($3) a month and Pro includes 25,000 credits ($25) a month. Enterprise includes custom AI credits.

The monthly allowance resets to your plan’s amount every month. Unused monthly credits don’t carry over.

The model you choose for AI interviews changes how many credits each interview uses. See [Choosing a model](https://www.questionpunk.com/support/ai-choosing-a-model).

## Related articles

- [Manage subscription](https://www.questionpunk.com/support/account-manage-subscription.md)
- [AI budget caps](https://www.questionpunk.com/support/ai-budget-cap.md)
- [Choosing a model](https://www.questionpunk.com/support/ai-choosing-a-model.md)