ToolsJuly 22, 2026via TechCrunch AI
Substack’s new tool tells you who’s been writing their newsletters with AI
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.
Key signals
- Substack 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
The hook
Substack just made AI-written newsletters visible. Creators can't hide it anymore.
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.