Which AI search engine should I optimise for first?

Google Gemini and AI Overviews — because the underlying work (GBP, reviews, structured data, Google index authority) serves the highest-volume AI search channel. After that, ChatGPT/Copilot via Bing Places. Perplexity is a secondary priority unless you're in a category with a research-oriented buyer who uses Perplexity specifically.

Is there overlap in the signals for all AI search engines?

Significant overlap. Reviews, structured data, website content quality, and citation consistency benefit all of them. The platforms that differ most are Perplexity (which favours cited, research-style content more than the others) and Gemini (which has direct access to Google's full data infrastructure). A solid AEO foundation covers 80% of the signal work for all platforms.

✦ AI Search Engines

Gemini & Perplexity Visibility for Businesses

Google Gemini, Perplexity AI, and Microsoft Copilot each have distinct architectures that produce different recommendation behaviour. Understanding how each works — what they retrieve from, how they weight signals, and what types of queries trigger business recommendations — determines where to focus optimisation effort beyond the ChatGPT baseline.

Google Gemini is Google's AI assistant, deeply integrated with Google's search index, Knowledge Graph, and Maps data. For local business queries, Gemini draws from the same sources as Google AI Overviews: GBP, Google Reviews, structured data, and Google's core index. Ranking in Gemini for local queries and ranking in Google AI Overviews are substantially the same challenge.

Perplexity AI is a dedicated AI search engine that performs real-time web searches, provides cited answers, and is particularly popular among technical and research-oriented users. Perplexity's model for business recommendations: it searches the web for authoritative answers, cites sources, and favours content that provides specific, accurate information. Websites with clear, cited, factual service content perform well in Perplexity.

Microsoft Copilot (formerly Bing Chat) is built on GPT-4 and Bing's search index. For local business recommendations, Copilot behaves similarly to ChatGPT with browsing — retrieving via Bing and synthesising recommendations from what it finds. The Bing Places optimisation that helps ChatGPT visibility also helps Copilot.

The practical implication: a business optimised for Google AI Overviews (GBP, reviews, structured data, informative content) is also well-positioned for Gemini and reasonably positioned for ChatGPT/Copilot. Adding Perplexity-specific content optimisation (cited data, specific facts, clear source-worthy writing) extends that coverage to the research audience.

Gemini / Google AI

Highest

GBP, Google Reviews, structured data, and Google index authority. Same signals as Google AI Overviews — the highest overlap with traditional SEO work.

Perplexity

High

Web content quality, citation-worthy factual claims, clear source authorship, and content that answers specific questions directly. Favours expert content.

Microsoft Copilot

High

Bing index, Bing Places for Business, and review platform data accessible via Bing. Same approach as ChatGPT optimisation.

✦ FAQs

Questions about gemini & perplexity visibility for businesses

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