To disable AI bots from using your published Substack content as part of a training model, first head to your publication's Settings page.
Scroll to the Privacy section and slide the toggle to the right next to "Block AI training."
This setting indicates to AI tools like ChatGPT and Google Gemini that their models should not be trained on your published content. This will only apply to AI tools that respect this setting, and blocking training may limit your publication's discoverability in tools and search engines that return AI-generated results.