Rick Hellewell

<p>You can block ChatGPT and Bard and other compatible AI scanners from using your site content by adding specific commands to your site’s virtual robots.txt file. Note that an actual robots.txt file in your site root will override the virtual commands.</p>
<p>The plugin also adds your sitemap.xml file to the virtual robots.txt file.</p>


ChatBot Blocker by CellarWeb

ChatBot Blocker by CellarWeb    adds commands to the WordPress virtual robots.txt file to block various chatbots from using your site content.

Processby

<p>The plugin allows you to create and edit the robots.txt file on your site.</p>
<h4>Features</h4>
<ul>
<li>Works with multisite network on Subdomains;</li>
<li>An example of the correct file for WordPress;</li>
<li>Works out of the box;</li>
<li>Totally Free.</li>
</ul>


Robots.txt Editor

Lightweight and perfect for multisite installations.

But in documentation need to say where the option/editor is installed (Settings > Read options).

ChatBot Blocker by CellarWeb vs Robots.txt Editor