Substack launches AI detector across platform

Substack has launched an AI-detection tool developed with Pangram to estimate how much of a post was AI-written, available for content longer than 100 words on web and iOS with Android coming later; creators can also publish a 'How I make this' note and scan drafts. The move aims to boost transparency and reader trust amid concerns about AI-generated content, though critics note Pangram readings are not perfect and the feature invites scrutiny of practices such as 'Claudefishing.'