Brand Mentions
Unlike backlinks, which require an actual hyperlink, brand mentions can be purely textual. AI models can still learn to associate a brand with a topic simply from seeing it named frequently and in relevant contexts.
Context does more work than volume. Being named once in a considered comparison article teaches a model more about where you belong than fifty mentions in unrelated listings. What you are named alongside matters too — repeatedly appearing next to the same set of competitors is how a model learns which category you occupy.
Because AI systems build pattern recognition from mentions as well as links, unlinked brand mentions still contribute meaningfully to future AI visibility.
An industry roundup article names a brand among several options without linking to its site — still a brand mention that reinforces the AI's association between that brand and the topic.

