Meta’s AI detector can’t catch its own cropped fakes

https://media.thenextweb.com/2026/04/Meta.avif

The Meta AI detector promises to catch Meta’s own fakes. Crop the image, and more than half slip straight past it.

The tool was meant to be a fix for the deepfake problem, not an example of it. This week Meta previewed an image detector alongside Muse Image, its most advanced image generator yet, and promised it could spot anything the model made later, even after editing.

Then Reuters ran the test. It generated 40 images with Muse Image, cropped them, and fed them back. The detector missed more than half.

How a simple crop broke it

The numbers are the story. Reuters found the tool verified every one of the 40 original AI images. Crop those same pictures to roughly a third or a half of their size, and it failed to flag 55% of them. A crop, the kind anyone does before posting, was enough to...

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