AI Overviews, GEO, and AI Visibility: What Changed for SEO

AI Overviews have been live since May 2024 and Google AI Mode launched publicly in May 2025. ChatGPT Search and Perplexity have grown from novelties to daily tools for a significant slice of the high-intent search market. The question isn’t anymore whether AI search matters — it’s how to optimise for it without abandoning the traditional SEO work that still drives the majority of search traffic.

This post explains what AI Overviews, Google AI Mode, and Generative Engine Optimisation (GEO) actually are, how they differ from traditional search, and what service businesses need to do differently to maintain and grow visibility across both surfaces.

What AI Overviews Actually Are

Google AI Overviews are AI-generated summaries that appear above the organic search results for qualifying queries. They synthesise information from multiple sources and include citations to those sources. The user can see the summary without clicking through to any website. Being cited in an AI Overview can drive significant traffic — the citation link beneath the summary is clicked by users who want to go deeper or verify the AI’s answer.

What Google AI Mode Is — And Why It’s Different

Google AI Mode is a separate tab in Google Search providing a fully conversational search experience. Key differences from standard search: no organic blue links (AI Mode returns AI-generated responses with citations only), conversational multi-turn interface, available in 180+ countries as of May 2025, and citation is the only visibility mechanism. AI Mode is used most heavily for complex research queries — exactly the type of queries that high-value service business buyers use when evaluating options.

ChatGPT Search and Perplexity

ChatGPT Search and Perplexity operate similarly to Google AI Mode but outside of Google’s ecosystem. Both retrieve and cite web sources in their responses. Citation selection is not driven by Google’s ranking algorithm — you can rank #1 in Google organic search and never appear in ChatGPT’s responses for the same query. Conversely, a site with lower traditional rankings may be cited frequently because its content is better structured for AI extraction.

What GEO Actually Is

GEO — Generative Engine Optimisation — is the practice of optimising content to earn citations in AI-generated answers. The signals that earn AI citations differ meaningfully from traditional ranking signals:

• Quotability — AI systems extract specific claims and statements. Content written in clear, direct, quotable sentences is cited more readily.
• Answer-first structure — AI systems prefer content that leads with the answer rather than burying it in paragraph five.
• Entity clarity — Clear, structured information about who you are, what you do, and where you operate helps AI systems include you in relevant answers.
• Topical authority — AI systems cite sources with comprehensive coverage of a topic, not just one strong page.
• Specific facts and data — Statistics, cost ranges, and concrete data points are cited far more often than general statements.

Our GEO service covers how we implement these optimisations, and our AI search SEO guide is the resource hub for all AI search content.

What Service Businesses Should Do Right Now

• Audit your AI visibility: Search for your priority queries in Google, Google AI Mode, ChatGPT, and Perplexity. Establish a baseline of where you are currently cited.
• Restructure key pages for AI extraction: Lead with direct answers, use clear headings, state key facts concisely, build FAQ sections structured for extraction.
• Implement entity clarity signals: Organisation, Person, Service, and LocalBusiness schema markup. Ensure your About page and service pages clearly state who you are, what you do, and your credentials.
• Build topical clusters, not isolated pages: A law firm with 15 well-connected pages covering personal injury earns AI citations more reliably than one with a single excellent page.
• Track AI visibility separately from rankings: Traditional rank tracking doesn’t capture AI citation. Monitor AI Overview appearances via Search Console and manually sample AI Mode, ChatGPT, and Perplexity regularly.

Is GEO Replacing Traditional SEO?

No. Traditional organic search results still drive the substantial majority of search traffic and will continue to do so for the foreseeable future. The businesses that win over the next 3–5 years are those visible in both environments. The appropriate response is to integrate GEO into your existing SEO program, not to replace one with the other. Our AI SEO services page covers how we do this in practice.

Written by Arslan Tariq — Founder of Arslan SEO Insights, an SEO consultancy specialising in service businesses across the US, Canada, Australia, and New Zealand. Arslan focuses on law firm SEO, local SEO, link building, and AI search optimisation. Connect on LinkedIn.