Substack Introduces AI Content Detection Tool for Users

WHO:

Mashable - Substack is the organization introducing the new feature.

Engadget - Substack is partnering with Pangram for the AI detection feature.

WHAT:

CNET - Substack's AI detection tool was test-driven, and it was reported that the tool "mostly worked" in identifying AI-generated content.

TechCrunch - Substack's new tool allows readers to estimate how much of a newsletter was written by AI, indicating a shift toward transparency regarding AI-assisted content.

Mashable - Substack's new feature is designed to help readers determine if content was written by a human or generated by AI.

Techmeme - The AI detection tool allows users to scan text longer than 100 words for an estimate of how much was written with AI assistance.

WHY:

Techmeme - The initiative aims to build trust in the AI age, as it is becoming increasingly difficult to discern real content on the internet.

HOW:

Engadget - The AI detection feature is being developed in partnership with Pangram.

(UPDATED July 23, 2026 01:27 UTC)

Substack's AI detection tool has been test-driven and reports indicate that it "mostly worked" in identifying AI-generated content. This development highlights the ongoing efforts to distinguish between human and machine-generated writing. As the technology continues to evolve, tools like this could play a significant role in content verification.

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(UPDATED July 22, 2026 17:26 UTC)

Substack has introduced a new tool that lets readers estimate the amount of content in a newsletter that was generated by AI, marking a significant move towards transparency in AI-assisted writing. This development reflects a growing trend in the tech industry to provide clearer insights into the use of artificial intelligence in content creation. As the conversation around AI continues to evolve, tools like this could play a crucial role in how readers engage with digital media.

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(UPDATED July 22, 2026 08:47 UTC)

Substack is rolling out a new feature designed to help readers identify whether content was created by a human or generated by AI, in partnership with Pangram. This AI detection tool allows users to scan text longer than 100 words to estimate the extent of AI assistance in its creation. The initiative aims to build trust in an era where distinguishing real content from AI-generated material is becoming increasingly challenging.