Resolution criteria

This market resolves to YES if, by December 31, 2026, at 11:59 PM PT, Substack implements a platform-wide feature that automatically filters, downranks, or hides AI-generated content, or provides a global setting allowing users to automatically filter such content from their feeds (such as the Inbox, Home, or Discover feeds).

To qualify as an "automatic filter," the system must apply feed-wide rather than requiring readers to manually initiate scans on individual posts.

The market will resolve to NO if:

• The only available AI content tool remains the manual, post-by-post "Scan for AI text" tool introduced in July 2026.

• No platform-level automatic feed filter for AI-generated text is officially launched by the deadline.

Resolution will be determined using official Substack product announcements (e.g., Substack Blog) or credible tech journalism reports (such as TechCrunch, Axios, Mashable, or 404 Media).

Background

In July 2026, Substack partnered with Pangram Labs to launch an AI detection tool. This manual feature allows readers to scan individual notes, posts, and comments to estimate what portion of the text is machine-authored. Following the initial release, Substack leadership indicated that future updates may allow readers to set global preferences to automatically filter AI-generated content from their recommended feeds altogether. This market tracks whether Substack moves beyond manual, reader-triggered scans to introduce a systemic, automatic feed-filtering feature by the end of 2026.

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