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

New

Detects AI-generated content in Substack newsletters for readers.

8.7 (51.032 score)

free

Overview

Substack's tool helps readers identify newsletters partially or fully written by AI. It analyzes text patterns to estimate AI usage, giving transparency about authorship. This addresses growing reader concerns about AI-written content quality and authenticity on the platform.

Pros

Helps readers identify AI-written newsletters before subscribing
Built directly into Substack platform for seamless integration
Provides transparency about content authorship to readers
Free tool available to all Substack users

✕ Cons

Detection accuracy depends on AI writing sophistication level
May flag legitimate human writing as AI-generated
Limited information about detection methodology publicly available

Key Features

AI content detection analysis

Authorship transparency indicators

Newsletter scanning integration

Reader-facing detection results

Use Cases

Readers evaluating newsletter authenticity before subscribingSubstack users concerned about AI-written competing newslettersPublishers proving their content is human-writtenPlatform transparency initiatives for content discovery

Best For

Newsletter ReadersContent CuratorsSubstack SubscribersQuality-Conscious Audiences

Frequently Asked Questions

How much does this AI detection tool cost?▾

The tool is completely free for all Substack users. There are no subscription tiers or premium features—detection is available to every reader on the platform.

How easy is it to use this detection tool?▾

It requires no setup. Since it's built directly into Substack, readers simply view newsletters normally and see authorship transparency indicators automatically without any configuration needed.

Does this tool integrate with other platforms besides Substack?▾

This tool is specifically designed for Substack newsletters only. It's a native Substack feature and does not extend to content detection on external platforms or websites.

What's the main limitation of this detection tool?▾

The tool can only analyze content within Substack's platform, so it won't help readers detect AI-generated content on other publishing platforms or personal blogs.

Who should use this detection tool?▾

Substack readers who want transparency about whether newsletter content is AI-generated before subscribing, and who value authentic human-written content in their reading choices.