# What are Extension Units?

**URL:** <https://community.imagekit.io/t/what-are-extension-units/92>\
**Category:** General\
**Created:** [March 5, 2025, 12:51pm UTC](https://community.imagekit.io/t/what-are-extension-units/92 "2025-03-05T12:51:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rajat](https://avatars.discourse-cdn.com/v4/letter/r/ebca7d/32.png) [@rajat](https://community.imagekit.io/u/rajat)\
**Post date:** [March 5, 2025, 12:51pm UTC](https://community.imagekit.io/t/what-are-extension-units/92/1 "2025-03-05T12:51:39Z")

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Saw this on the pricing page. When are they consumed? Do we get charged for it for processing images or videos?

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**Author:** ![imagekit\_kashish](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.imagekit.io/imagekit_kashish/32/8_2.png) [@imagekit\_kashish](https://community.imagekit.io/u/imagekit_kashish)\
**Post date:** [March 17, 2025, 10:21am UTC](https://community.imagekit.io/t/what-are-extension-units/92/2 "2025-03-17T10:21:47Z")

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**Extension units** in ImageKit are utilized when leveraging third-party services integrated within the platform or when applying AI-powered real-time transformations.

## **Third-Party Services**

ImageKit DAM integrates AI-powered features using services from providers like Google , Amazon and other providers. These include:

- **[Auto Tagging](https://imagekit.io/docs/dam/tagging-media-assets#ai-powered-auto-tagging)** – AI-driven automatic tagging utilizes third-party services provided by Google ([Vision AI](https://cloud.google.com/vision)) and Amazon([Rekognition](https://aws.amazon.com/rekognition/)), consuming extension units when applied.
- **[Background Removal](https://imagekit.io/docs/dam/edit-images#ai-powered-background-removal)** – The AI-powered background removal feature also relies on external service ([remove.bg](https://www.remove.bg/)) and consumes extension units upon usage.

Learn more about how extension units are calculated [here](https://imagekit.io/docs/dam/overview#ai-extension-pricing).

## **AI-Powered Real-Time Transformations**

ImageKit offers various [**AI-powered real-time transformations**](https://imagekit.io/docs/ai-transformations), each consuming extension units based on the specific transformation applied. The number of units required varies according to your pricing plan.

For a detailed breakdown of charges, refer to our documentation [here](https://imagekit.io/docs/ai-transformations#pricing).