Substack, a platform for independent writers and publishers, has launched a new feature that allows readers to gauge the extent to which a newsletter has been written using artificial intelligence. This move reflects a growing trend towards transparency in the use of AI-generated content. The tool is intended to provide readers with a clearer understanding of the content they are consuming. As the use of AI in content creation becomes more widespread, this development highlights the need for greater clarity and disclosure. This matters because it sets a precedent for other platforms to follow suit, potentially influencing the future of content creation and consumption.