AI search has moved from an emerging trend to a mainstream reality in the UK. Over the past 18 months, the search landscape has been transformed by the rollout of Google AI Overviews, the rapid growth of ChatGPT Search, and the emergence of Perplexity as a serious research tool — all happening simultaneously, and all with significant implications for how UK brands invest in organic visibility.
This piece covers the current state of AI search in the UK: the data on adoption, the channel-by-channel picture, and what marketers need to prioritise.
Google AI Overviews: The UK Rollout
Google AI Overviews launched in the US in May 2024 and began their UK rollout in late 2024. By early 2026, AI Overviews are appearing consistently across a wide range of UK search queries — with particularly high frequency on informational, how-to, and research-intent searches.
According to data from SE Ranking published in Q4 2025, AI Overviews appear for approximately 29% of UK Google searches across all query types — and for informational queries specifically, the rate is significantly higher, with some analysis suggesting 40–50% of how-to and definitional queries now trigger an AI Overview.
The implications for UK SEOs are direct. For the queries most likely to trigger AI Overviews:
- Traditional organic click-through rates decline as the AI answer absorbs user attention
- Citation within the AI Overview generates brand impressions even without clicks
- Being excluded from AI Overviews for your most important queries is increasingly a meaningful visibility loss
What's driving UK AI Overview appearances
Google's AI Overviews in the UK are most consistently triggered by:
- Medical and health queries (which UK users ask at high frequency, given NHS context)
- Finance queries (personal finance, mortgage, investment)
- Legal and rights queries ("what are my rights if...")
- Technology and software "how to" queries
- Education and career guidance queries
UK-specific queries — those referencing British regulations, UK institutions, HMRC, NHS, or specifically British cultural context — are increasingly well-served by AI Overviews. Early in the rollout, UK-specific content was sometimes served less accurately by AI Overviews than US content; that gap has narrowed considerably.
What UK marketers should do about AI Overviews
The optimisation requirements for Google AI Overviews are well established:
- Answer-first content structure with extractable passages
- FAQ sections with FAQPage schema
- Named authors with verifiable UK credentials for YMYL content
- Explicit citation of UK-specific sources (NHS, GOV.UK, FCA, etc.) where relevant
- Ensuring
Google-Extendedis allowed in robots.txt
UK brands with strong domain authority and well-structured content are regularly being cited in AI Overviews for competitive queries. This is a winnable optimisation target — not an algorithmic lottery.
ChatGPT Search: UK Adoption and Usage Patterns
ChatGPT crossed 500 million monthly active users globally in late 2025, with the UK representing one of its strongest markets per capita. Research from Ofcom's Online Nation report indicates that approximately 28% of UK adults used AI tools for search-related tasks at least monthly in 2025 — a figure that has grown substantially year-over-year.
ChatGPT Search (the web-retrieval-enabled version of ChatGPT) is particularly prevalent among:
- Tech and digital professionals — The highest adoption segment, with many knowledge workers using ChatGPT Search as a primary research tool alongside or instead of Google
- Students and researchers — University students represent a rapidly growing user base, particularly for literature reviews and research synthesis
- Financial services professionals — High adoption of AI research tools, with ChatGPT Search frequently used for market analysis, regulatory research, and competitive intelligence
- Healthcare and life sciences professionals — Clinical and research professionals using AI search for literature searches and guidelines
The query patterns for ChatGPT Search differ from Google. UK ChatGPT Search users tend to ask longer, more conversational questions:
- "What are the current HMRC rules around IR35 for contractors working in the financial sector?"
- "What SEO strategies are most effective for UK law firms in 2026?"
- "How does making a PPI claim work in the UK?"
These queries are information-dense, sector-specific, and often reference UK regulatory or institutional context. Content that directly addresses UK-specific nuance — rather than generic international versions of the same topics — has a clear advantage.
UK brands in ChatGPT Search citations
One pattern emerging from UK brands monitoring their ChatGPT Search citations: national and regional UK publications (BBC, The Guardian, The Times, City A.M., The Drum) are cited disproportionately high for UK-specific queries. For UK brands, being covered in these publications — through digital PR — generates not just traditional SEO link value but AI citation visibility.
Building relationships with UK journalists and securing coverage in authoritative UK publications has become an even more direct AI visibility strategy than it was previously.
Perplexity AI: Growth and UK Market Profile
Perplexity has grown from approximately 10 million monthly users in early 2024 to an estimated 100 million+ by early 2026, according to data from similar web and public statements from the company. UK usage has grown proportionally — with Perplexity particularly popular among the same early-adopter, high-education professional segments that adopted ChatGPT Search earliest.
Perplexity's transparent citation model makes it uniquely valuable from a GEO monitoring perspective. Every answer shows its sources clearly, allowing brands to directly track when and where they appear in Perplexity responses for relevant queries.
UK-specific observations from Perplexity usage:
- UK industry publications are regularly cited for sector-specific queries. Trade publications in finance, technology, healthcare, and marketing appear frequently as Perplexity sources for UK professional queries
- GOV.UK and NHS dominate citations for regulatory and health queries respectively — reinforcing the importance of UK-specific sourcing for brands writing about these topics
- High domain authority UK sites (Which?, MoneySavingExpert, TechRadar UK) appear frequently for consumer research queries
What Perplexity means for UK content strategy
For UK brands targeting professional audiences, Perplexity is arguably the highest-priority AI search platform to optimise for — because its users are predominantly the research-oriented professionals who influence B2B purchasing decisions.
The optimisation approach for Perplexity is consistent with broader GEO strategy:
- Deep topical coverage
- Answer-first, structured content
- Regular freshness updates
- Allowing PerplexityBot in robots.txt
- UK-specific content that addresses British regulatory, cultural, and institutional context
Microsoft Copilot and Bing's AI Evolution
Microsoft Copilot — Bing's AI search integration — is available across Microsoft 365, Windows, and Edge, giving it significant distribution among UK enterprise and public sector users. According to Statista, Bing holds approximately 7% of the UK search market, but Copilot usage extends beyond Bing search users through Microsoft's enterprise product integrations.
For UK brands targeting enterprise buyers, Copilot visibility deserves attention. Copilot draws from Bing's index, meaning Bing SEO signals — which overlap significantly with Google SEO but with some differences — directly affect Copilot citation probability.
UK enterprise brands should:
- Verify Bing Webmaster Tools is set up and site is indexed in Bing
- Submit location data to Bing Places for each UK office
- Ensure BingBot is allowed in robots.txt (standard practice, but worth confirming)
What This Means for UK Marketing Budgets
The AI search transformation is reshaping how UK marketers should think about channel allocation. Several patterns are emerging from brands actively tracking their AI visibility:
Informational content has new value — Content that was historically "too top-of-funnel to justify" (general educational content without immediate conversion intent) now generates AI Overview citations and ChatGPT Search appearances that have brand-building value at scale.
Domain authority has dual value — High domain authority continues to drive Google rankings AND now correlates with AI citation frequency across platforms. Investments in link building and digital PR generate returns in both channels.
UK-specific content outperforms generic content — Content that addresses specifically British context, regulation, and institutional norms outperforms international generic content in UK AI search responses. Localising content for the UK market is now both an SEO and GEO priority.
E-E-A-T investment returns have increased — Named author credentials, transparent company information, and authoritative external citations were always good practice for YMYL content. Their importance has grown as AI platforms weight these signals heavily for source selection.
FAQs
Is AI search replacing Google in the UK? Not yet. Google remains the dominant search engine in the UK with approximately 90% market share, and total Google search volume continues to grow year-over-year. AI search is supplementing Google use more than replacing it, particularly for research-heavy queries. However, user behaviour within Google has shifted — AI Overviews now absorb query intent that previously drove clicks to organic results.
Do UK websites rank differently in AI search than in Google? There are differences in emphasis. AI search platforms tend to favour topically authoritative, well-structured, freshly updated content more heavily than Google does. UK-specific content has an advantage in UK AI search because AI platforms are increasingly attuned to geographic context. Domain authority remains important in both.
Should UK brands create separate content for AI search? Not entirely separate content — but content should be structured with AI extraction in mind. This means answer-first section openings, FAQ sections with FAQPage schema, explicit question-form headings, and sourced statistics. These practices improve both traditional SEO and AI search performance simultaneously.
How do I monitor my UK brand's AI search visibility? Manual testing in ChatGPT Search, Perplexity, and by observing Google AI Overviews for your target queries is the baseline approach. At scale, tools like Otterly.AI and Profound offer automated monitoring. Track chatgpt.com and perplexity.ai in your referral traffic report in GA4 to measure click-through from AI citations.
Is the AI search opportunity bigger for some UK industries than others? Yes. Industries where UK users are asking complex, research-intensive questions — financial services, healthcare, legal, technology, professional services — have the largest AI search opportunity because these queries most reliably trigger AI-generated answers with cited sources. Retail and local service businesses are less affected by AI Overviews for transactional queries, though local AI search is evolving.
UK brands that invest in GEO now — while the landscape is still consolidating — will have a structural advantage over competitors who wait. Our team offers AI search audits and GEO strategy specifically built for UK businesses.
