Checkobot

Grok image detector

Was this image made with Grok? Check it free with Checkobot, see where detection can miss, and find our catch rate here once it's measured.

Checko doesn’t name the generator. It tells you whether an image shows signs of AI. We're measuring how often that catches Grok images, and will publish the rate here with the date we measured it.

Show Checko an image

Drop an image here

JPEG, PNG, WebP, AVIF, GIF, BMP or TIFF · up to 20 MB

On free checks, images are checked in memory and never stored.

How well we catch Grok

Measurement pending. We publish a catch rate here only after testing on a fresh set of Grok images, with the date we measured it.

About Grok

Grok is xAI's assistant, built into X. It makes and edits images on request, using xAI's own image models, and many of its pictures are posted straight to X.

  • Images saved from X are recompressed. Find the largest copy you can, or the original post, before checking.
  • Grok is often asked to edit photos of real people, so the face analysis matters as much as the whole-image analysis.

Where it can miss

  • New versions of Grok can look different from older ones, and detectors can take time to catch up.
  • Heavy edits, upscaling or filters after the image was made can hide the traces detectors look for.
  • Screenshots and re-shared copies add compression. Very small or heavily compressed images are refused rather than guessed at.

Getting a good check

  • Find the largest, earliest copy of the image you can. A reverse image search often turns it up.
  • Check the original file rather than a screenshot of it.
  • If there’s a face, make sure it’s at least 64 pixels across so the face analysis can run.

Questions

Can Checkobot detect Grok images?

We're measuring it now. This page will show our catch rate on a fresh set of Grok images, with the date we measured it.

Will Checko tell me the image was made with Grok?

No. Checko tells you whether an image shows signs of AI generation or editing, not which tool made it. Once measured, this page will show how often that catches Grok images.

Is it free?

Yes. You can check 3 images a day without signing up, or 10 a day with a free account.