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New labeling, detection, and feed controls aim to reward original storytelling, not mass-produced AI slop.

The newsletter platform says AI-generated clutter is overwhelming the internet, and it wants users to choose what they see.

A new detector scans posts, notes, replies, and comments, helping readers gauge AI-written or AI-assisted text.

Substack is teaming with Pangram to add AI detection, shifting the trust model for creators and complicating platform risk management.