--- title: Meta AI detector misses half its own cropped fakes description: Reuters tested Meta's new AI image detector by cropping 40 images generated with Meta's Muse Image tool and found it failed to flag 55% of them. The detector... canonical: https://daily.dev/posts/meta-ai-detector-misses-half-its-own-cropped-fakes-gcvymmlmj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Meta AI detector misses half its own cropped fakes | daily.dev og:description: Reuters tested Meta's new AI image detector by cropping 40 images generated with Meta's Muse Image tool and found it failed to flag 55% of them. The detector... og:url: https://daily.dev/posts/meta-ai-detector-misses-half-its-own-cropped-fakes-gcvymmlmj og:image: https://api.daily.dev/og/posts/GCvyMMlmJ.png og:image:alt: Meta AI detector misses half its own cropped fakes og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Meta AI detector misses half its own cropped fakes **[The Next Web](https://daily.dev/sources/tnw)** · 4 min read · 0 upvotes · 0 comments ## Summary Reuters tested Meta's new AI image detector by cropping 40 images generated with Meta's Muse Image tool and found it failed to flag 55% of them. The detector relies on an invisible watermark called Content Seal, which Meta claims survives common edits — but a simple crop was enough to strip the signal in more than half of cases. Meta acknowledged the limitation, noting the watermark may be lost with heavy cropping. Researchers point out that any modification — cropping, resizing, compression — can degrade watermark-based detection. The failure is particularly concerning given the upcoming US midterm elections and growing regulatory pressure around AI-generated disinformation. Google's SynthID faces similar limitations, and the broader industry consensus is that watermarking is a speed bump, not a solution. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Meta removes controversial AI feature on Instagram after backlash](https://daily.dev/posts/meta-removes-controversial-ai-feature-on-instagram-after-backlash-pbiv4gcra) · TechCrunch · 0 upvotes · 0 comments - [Meta’s latest AI improves its terrible content moderation](https://daily.dev/posts/meta-s-latest-ai-improves-its-terrible-content-moderation-y6ptsdngz) · The Register · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/meta-ai-detector-misses-half-its-own-cropped-fakes-gcvymmlmj) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Meta AI detector misses half its own cropped fakes","url":"https://daily.dev/posts/meta-ai-detector-misses-half-its-own-cropped-fakes-gcvymmlmj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/meta-ai-detector-misses-half-its-own-cropped-fakes-gcvymmlmj"},"datePublished":"2026-07-13T15:12:15.823Z","dateModified":"2026-07-13T15:12:50.634Z","description":"Reuters tested Meta's new AI image detector by cropping 40 images generated with Meta's Muse Image tool and found it failed to flag 55% of them. 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