LONDON–(BUSINESS WIRE)–Semrush, an Adobe company and the leading brand visibility platform, today announced the latest edition of its 2026 AI Visibility Index at Spotlight London, expanding its flagship research with a dedicated comparison on how major AI platforms surface brands and sources in the UK and US. The findings show that there is no single, global approach by which AI visibility is achieved. The brands that AI platforms mention, the sources they cite, and the level of consistency b