Substack’s new tool tells you who’s been writing their newsletters with AI

“This is good use of AI,” Substack CEO Chris Best said.

“When I used to pitch Substack to writers, one way I would do it is […] we’ll do everything for you except the hard part,” he explained in an online chat with Pangram’s founder, Max Spero. “You have to have something — an idea that’s worth reading, that’s worth caring about, that’s worth sharing. That one thing is very hard and very valuable […] software should do everything else, but I think you do want the person to do the hard part.”

The feature will be available in Substack’s app for any post, note, reply, or comment above 100 characters. Substack will also allow its writers to include an optional AI Author’s note, using which creators can properly disclose their use of AI, the company told TechCrunch.

The company clarified that the tool is not meant to prohibit or penalize AI-assisted writing, but rather to encourage writers to add a “how I make this” statement, where they explain their process.

Publishers can also run Pangram on their own drafts before publication, and report and remove scans on their own work they believe are mistakes.