Substack’s new tool tells you who’s been writing their newsletters with AI
Substack just made AI-written newsletters visible. Creators can't hide it anymore.
Why it matters
Substack's new AI detection tool represents a shift toward transparency in creator platforms, forcing writers to disclose AI assistance and setting a precedent for content authenticity disclosures across media platforms.
The key facts
9 to knowSubstack launches reader-facing AI detection tool for newsletters
Tool estimates AI-assisted content percentage
Addresses transparency gap in creator economy
Signals industry trend toward AI disclosure requirements
Impacts creator accountability and reader trust
Substack launches AI detection tool for newsletter readers
Signals broader industry shift toward AI content transparency
Addresses creator economy trust concerns around AI-assisted writing
Published July 22, 2026
Go to the source
TechCrunch AItechcrunch.com
Publisher excerpt: Substack is giving readers a way to estimate how much of a newsletter was written by AI, signaling a broader shift toward transparency around AI-assisted content.