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# Modify Video

# 📹 How do I edit a video with Modify Video?

Modify Video makes AI-powered edits to an existing clip from a text prompt, changing objects, backgrounds, colors, or style without reshooting. You reference your uploaded clip in the prompt using a tag like **@Video1.**


![](https://storage.crisp.chat/users/helpdesk/website/-/4/1/a/c/41accd17b39fe400/screenshot-2026-03-19-at-70313_9lkfuw.png)


Edit any existing video using a text prompt - change objects, backgrounds, colors, or style without reshooting.
All video tools share the same layout: upload panel on the left, History and How it Works tabs on the right. Select from Library is available on all tools to reuse existing assets.

### Edit a Video

Follow these steps to get started:
* Go to **Video → Modify Video.**
* Upload your video, drag & drop, paste a URL, or **Select from Library** (max **200 MB, 10 seconds**).
* Note the **reference tag** shown, e.g. **@Video1.**
* Describe your change using the tag, e.g. *"Change the cherry blossom to a maple tree in @Video1."*
* Click **Generate Video**, then preview and download from the right panel.


![](https://storage.crisp.chat/users/helpdesk/website/-/4/1/a/c/41accd17b39fe400/screenshot-2026-03-19-at-65945_1w43qz6.png)


### Tips for better results

* **Always include the @Video1 tag** in your prompt, without it, the edit won't apply.
* Be specific: *"Replace the red car with a blue truck"* works better than *"change the car."*

🚨 If changes aren't applying, confirm the **@Video1** tag is in your prompt. If upload fails, check the file is under 200 MB and 10 seconds.



Still Need Help? Reach out to us at [__support@atlabs.ai__](mailto:support@atlabs.ai) — we’re happy to assist with the changes.