What 'AI search' actually means in 2026
AI search means queries answered by large language models across four surfaces: ChatGPT, Claude, Perplexity and Google AI Overviews, which appeared in around 78% of commercial UK queries by mid-2026 per SISTRIX. The behaviour has changed: AI gives direct answers with named sources, and clicks often do not happen. Pew Research Centre's July 2025 study found that when AI Overviews appear, click-through to organic results drops from 15% at position 2 to 3.7%.
The four AI tools that matter for UK businesses
| AI tool | Primary UK use case | Citation weight | Buyer signal |
|---|---|---|---|
| ChatGPT | Broad exploratory research, recommendation queries | Highest by absolute volume | Reach and consumer credibility |
| Google AI Overviews | Commercial queries with Google intent | Highest by SERP integration | Coverage of existing Google search |
| Perplexity | Research, journalism, professionals | Disproportionately high per capita | Evidence-backed authority |
| Claude | Reasoning, comparison, structured decisions | High in B2B professional queries | Considered-purchase credibility |
Why one tool is not enough
A UK business that gets cited by ChatGPT but not Perplexity is invisible to the research-heavy audience.
How AI search behaviour differs from classic Google search
- The click is optional. Named citations without clicks still count. Around 40% of AI-answered queries never generate clicks (Meltwater/Advanced Web Ranking).
- Named entities beat generic phrases. 'Cooper Accounting Bristol' is citable; 'a Bristol accountancy firm' is not.
- Recency compounds. 48% of citations go to content published in the last 3 months; only 12% go to content over 12 months old.
What UK businesses are already seeing
A common pattern across BrisTechTonic client accounts: Google Search Console impressions up 20-40% year on year on informational queries, clicks flat or down, and average position unchanged. Three signals identify this pattern:
- Impressions rising but clicks flat or down (the 'AI Overview tax')
- Featured snippet queries losing clicks despite the position staying at #1
- Long-tail question queries disappearing from the top 20 while the homepage climbs
The three shifts every UK SME needs to make in 2026
- Classic SEO stays. On-page, technical, links and Core Web Vitals remain foundational.
- [Local SEO](/services/local-seo) becomes table stakes. Google Business Profile, NAP consistency, reviews and LocalBusiness schema.
- AEO becomes its own discipline. Answer-first content, FAQPage schema, named authors with Person schema, ranked comparisons and quarterly refresh cycles, which now make up 20-40% of a modern UK SEO retainer at serious agencies.
Where BrisTechTonic fits
BrisTechTonic is a UK SEO and Answer Engine Optimisation agency based at Paintworks in Bristol. A typical retainer runs from £500 to £3,000 a month depending on scope.
Is AI search replacing Google in 2026?
Not entirely. Google still owns the majority of UK search intent, but roughly 25-35% of research and recommendation queries now happen inside ChatGPT, Claude, Perplexity or Google's own AI Overviews.
Do I need to stop doing classic SEO to focus on AEO?
No. Classic SEO is a prerequisite for AEO. AI models weight fast, well-structured, schema-marked pages, and Google AI Overviews draw from the same organic index that classic SEO targets.
Which AI tool should a UK small business optimise for first?
Google AI Overviews, for the widest UK reach, with ChatGPT a close second. The same structural fixes benefit all four tools at once.
How is AI citation different from a featured snippet?
Featured snippets appear in classic Google results and link to your page. AI citations name your brand as the source in an AI-generated answer whether or not the user clicks. The same structural patterns reinforce both outcomes.
How long does it take to get cited by ChatGPT or Perplexity?
For a well-optimised UK SME site with 20 or more pages, expect 3 to 6 months for first target-question citations and 6 to 12 months for consistent citation across buyer questions. A quarterly refresh is the minimum required.