Authoritas

Authoritas is the UK entry in AI visibility, and it is the one to look at if you operate across markets. It tracks brand mentions, sentiment and visibility across seven surfaces — ChatGPT, Gemini, Perplexity, Claude, DeepSeek, Google AI Overviews and Bing AI — which is a wider published list than most of this tier, and includes Bing AI, which nothing else in this catalogue names. More usefully, it states that it tracks how AI responses vary by location and by language. That is the capability multilingual brands keep asking for and rarely find documented; worth noting that Authoritas makes this claim on its own homepage, while the competitor most often credited with language depth publishes no language claim at all. It also analyses which sources the models cite, and sits alongside a conventional SEO platform with rank tracking, technical audits and competitor analysis, so it can serve as one supplier rather than two. Customers include Allianz, Michelin, CDiscount and Lands' End. The free tools are real — a Google Sheets plugin, template library and a trial — but no paid rates are published anywhere, so budget conversations start with a call.