Context
Researchers introduced RAG models that combine pretrained generative models with retrieved non-parametric knowledge.
What changed
Generation could be grounded in retrieved external sources, improving freshness, specificity and provenance.
Why it matters
RAG is one of the core technical patterns behind modern AI search, source retrieval and citation behavior.
Visibility OS interpretation
For AI visibility, being retrievable becomes as important as being understandable.
What remains uncertain
No event-specific uncertainty note is recorded yet. This record may change as new evidence is reviewed.