Direct Answer: 2025 was the year AI search went mainstream. 2026 is the year it becomes dominant. From ChatGPT Search overtaking Google for service queries to AI agents making purchasing decisions autonomously, these 7 trends will reshape how customers find and choose businesses. UK companies that adapt in Q1 will own their market by Q4. Those that wait will be playing catch-up for years.
Year-over-year growth in AI search usage across ChatGPT, Perplexity, and Google AI Overviews
The Year AI Search Becomes Default
2025 changed everything. ChatGPT crossed 200 million weekly users. Perplexity hit 100 million monthly active users. Google AI Overviews expanded to 80% of queries. Apple integrated ChatGPT into Siri.
But 2025 was just the warm-up.
2026 is the year AI search stops being an alternative and starts being the default. The data is clear, the trajectory is undeniable, and the businesses that position themselves now will dominate for years to come.
Here are the 7 trends that will define 2026.
Trend 1: ChatGPT Search Will Overtake Google for Service Queries
OpenAI's ChatGPT Search feature is growing at a staggering pace. For service-related queries — "best accountant in Leeds", "top marketing agency for ecommerce" — ChatGPT is already the preferred tool for millions of users.
Why? Because ChatGPT doesn't give you 10 links to sift through. It gives you one recommendation with reasoning. Users trust it. And they act on it.
What this means for you: Getting ranked on Google isn't enough anymore. You need to be the business ChatGPT recommends. That requires citation authority, structured data, and multi-platform presence — the foundations of AEO.
Action: Test your business on ChatGPT today. Ask it to recommend businesses in your industry and location. If you're not mentioned, you have work to do.
Trend 2: Google AI Overviews Will Expand to 90%+ of Queries
Google isn't fighting AI search. Google is AI search. By mid-2026, AI Overviews will appear on over 90% of all UK search queries. The traditional "10 blue links" format will be a relic.
For businesses, this means organic click-through rates will continue to plummet. The only traffic that survives is from being cited as a source inside the AI Overview.
What this means for you: Your SEO strategy needs an AEO layer. Schema markup, entity recognition, and authoritative content aren't optional — they're survival requirements.
Action: Audit your schema markup. If you don't have Organization, LocalBusiness, Service, and FAQPage schema, implement them this month.
Trend 3: Perplexity AI Will Become the Go-To Research Tool for B2B Buyers
Perplexity AI crossed 100 million monthly users in early 2026, and it's growing fastest among B2B decision-makers. Why? Because Perplexity searches the live web, synthesises information, and provides cited sources — perfect for vendor research and comparison.
If a procurement manager asks Perplexity "best AEO agency in the UK", and your business isn't cited, you're invisible to the fastest-growing segment of B2B buyers.
What this means for you: Perplexity indexes the live web in real-time. Fresh, authoritative, well-structured content gets cited immediately. This is your biggest opportunity in 2026.
Action: Publish fresh, comprehensive content monthly. Keep your website updated. Perplexity rewards recency.
Trend 4: Voice Search Through AI Assistants Will Dominate Local Discovery
Apple's Siri now uses ChatGPT. Google Assistant uses Gemini. Alexa is integrating conversational AI. The result? Voice queries are no longer simple commands — they're intelligent conversations that result in specific business recommendations.
"Hey Siri, find me a good plumber near Birmingham" no longer shows you search results. It tells you: "Based on reviews and availability, I'd recommend [Business Name]."
What this means for you: Voice search users never see a website. They hear one recommendation. If that recommendation isn't your business, you've lost the customer permanently.
Action: Optimise your Google Business Profile completely. Add FAQ content in conversational, question-answer format. Implement Speakable schema.
Trend 5: AI Agents Will Start Making Purchasing Decisions
This is the trend most businesses aren't ready for. AI agents — autonomous software that acts on behalf of users — are entering the consumer market. AI shopping assistants that compare, evaluate, and purchase. AI booking agents that find and reserve services.
These agents don't browse websites. They read structured data, evaluate reviews, compare pricing, and make decisions based on schema markup and citation authority.
What this means for you: If an AI agent can't parse your business data (because you lack schema markup), it literally cannot recommend you. You're excluded from the decision entirely.
Action: Ensure your pricing, services, reviews, and availability are structured as machine-readable data. Schema markup is no longer a technical nicety — it's your sales pipeline.
Trend 6: Schema Markup Will Become as Essential as Having a Website
In 2020, having a website was essential. In 2026, having schema markup is equally essential. Without it, AI systems can't understand your business, and they won't recommend you.
Yet our analysis shows that fewer than 15% of UK small businesses have comprehensive schema markup. This is a massive competitive opportunity for early movers.
What this means for you: Implementing schema markup now puts you ahead of 85% of your competitors. The gap will close, but in 2026, it's still wide open.
Action: Implement Organization, LocalBusiness, Service, Person, FAQPage, and Review schema. Validate using Google's Rich Results Test.
Trend 7: First-Mover Advantage in AEO Will Create Permanent Winners
AI citation authority compounds. The longer you've been cited, the more AI trusts you. The more AI trusts you, the more it cites you. It's a virtuous cycle that rewards early adopters.
Businesses that established AEO presence in 2025 already have a significant head start. But the window isn't closed yet. Q1 2026 is the last window to be an "early adopter" before AEO becomes mainstream.
What this means for you: Every month you delay, competitors are building citation authority you'll have to overcome. Start now, and you still have first-mover advantage in your niche.
Action: Book an AEO audit this month. Understand where you stand and what it takes to become the AI-recommended business in your category.
of UK small businesses still lack comprehensive schema markup — a massive opportunity for early movers in 2026
Ready to Own 2026?
Don't wait until your competitors have locked in their AI visibility advantage. Get your free AEO strategy call and discover exactly how to position your business for the AI search era.
Book Your Free Strategy Call → See Our AEO ServicesThe Bottom Line
2026 isn't a year of gradual change. It's a tipping point. AI search will become the primary way customers discover businesses. The companies that adapt will thrive. The ones that don't will become invisible.
Seven trends. One message: AEO is no longer optional.
The question isn't whether AI search will reshape your industry. The question is whether you'll be positioned to benefit — or left behind.