A credit is a standardized unit of AI processing power consumed on every AI operation performed in ToolJet. Each operation, from [generating complete applications](/docs/build-with-ai/generate-applications) to creating custom code or modifying layouts, consumes a varied amount of credits based on the complexity and type of task. This approach provides transparent cost visibility while enabling you to scale your AI usage on-demand.
Credit usage in ToolJet varies based on the complexity of the request. Monthly credits are always consumed first. Add-on credits are utilized only after the monthly credits are exhausted. The table below provides an average range of credits utilized for different operations to help you estimate usage.
These values are only average estimates to help plan your operations. **Actual credit consumption will vary depending on the complexity of the operation**.
Monthly credits are recurring credits included with your purchased license. They renew every month on the billing cycle date and are valid for one month. Any unused credits will not carry forward to the next month. Even if you are on an annual plan, credits are still renewed on a monthly basis.
Add-on credits can be purchased in addition to your monthly credits and are a one-time purchase that do not renew monthly. These credits can only be purchased in multiples of 100 and are valid for one year from the date of purchase. If you buy additional credits after an initial purchase, the validity of the entire pool of credits is extended based on the latest purchase date. Checkout the [pricing](https://www.tooljet.com/pricing) page for more information.
3. A payment modal will open where you can enter details such as the number of credits you want to purchase and any promo codes. After filling out the details, click the **Get AI credits** button at the bottom. <br/>
3. A payment modal will open where you can enter details such as the number of credits you want to purchase and any promo codes. After filling out the details, click the Get AI credits button at the bottom. <br/>
ToolJet AI credits are allocated on a per builder per month basis according to the purchased license. The total credits from all builders, along with any add-on credits purchased, are pooled together and made available collectively.
| Credit Usage | Fixed credits per operation. <br/> Eg. Every app generation would cost 10 credits. | Variable credits based on complexity of operation. <br/> Eg. A small app could take 70 credits, and a large app could take 120 credits. |
| Credit Types | Monthly recurring credits included in your plan. | - Monthly recurring credits included in your plan. <br/> - Optional purchase of additional credits which are valid for 1 year. |