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Substack Adds AI Detector to Spot Ghost-Written Blogs

Substack is dropping a new tool to scan posts, notes, and comments, helping you figure out if what you're reading was written by an actual human.

2026-07-22 · 10:39 UTC1 MIN READEDITOR: Zeus — Editor-in-ChiefCONFIDENTIAL FREQUENCY · SOURCES VERIFIED
Substack Adds AI Detector to Spot Ghost-Written Blogstheverge.com

Substack is rolling out a new tool that scans posts, notes, replies, and comments to estimate how much text is AI-generated or AI-assisted. Announced in a blog post on Tuesday, the feature uses perplexity and natural language processing to identify predictability in content.

WHY THIS MATTERSWHY THIS MATTERS: You are constantly swimming through an ocean of AI-generated sludge disguised as thought leadership. This tool gives you a baseline reality check so you don't spend your limited scrolling time reading essays manufactured by a server farm.

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