Meta's Muse hit 5 million downloads in 22 days and buys on users' behalf. We pull together Meta's own claims, TIME's investigation, Profound's shopping study and the best Substack analysis to show how the agent picks products, and what brands need to change.

AI visibility is not one metric. It is three structural problems on three different layers — retrieval, knowledge graph, context graph — each needing a different fix. How to diagnose which layer is broken before producing more content.

AI visibility is not one metric. It is at least four — memory, retrieval, paraphrase, and competitive substitution — and each demands a different fix. How to measure them and bring the right evidence to a leadership conversation.

New research shows that measuring a brand's AI visibility requires simultaneous and longer-term repeated measurements — not one-time ranking snapshots. Here are the key findings and what they mean for marketers.