# Grok image upscaler

> Make a Grok image up to four times bigger and sharper. The AI runs on your own device, so nothing is uploaded.

Source: https://getoxtro.com/grok-image-upscaler

This is an interactive tool. Use it at https://getoxtro.com/grok-image-upscaler; it runs in the browser.

## What size are Grok images?

xAI's documentation lists two main sizes for Grok Imagine images: 1K at 1024 x 1024 and 2K at 2048 x 2048. A copy saved from a post on X may be smaller and more compressed than either.

| Starting size | At 2x | At 4x |
| --- | --- | --- |
| 1024 x 1024 | 2048 x 2048 | 4096 x 4096 |
| 2048 x 2048 | 4096 x 4096 | 8192 x 8192 |

## Getting the best result

**Download the image itself** where you can, instead of taking a screenshot or saving a compressed copy from a post. The AI can only work from what the file still holds.

**Match the mode to the picture.** Choose **Photo** for realistic images, and **Art** for anime, cartoons and illustration.

**Check small text and faces.** Upscaling redraws fine detail, so these can change. The compare slider lets you check before you download.

## Frequently asked questions

### Does this work on images saved from X?

Yes. It works on any image file, including saved copies. A heavily compressed copy improves, but it won't be as good as the original download.

### Do I need a Grok or X account?

No. You don't need an account here at all, and the tool doesn't connect to Grok or X. It only needs the image file.

### Will it remove a watermark from a Grok image?

No. It enlarges the picture as it is, so a visible mark stays.