Is AI SEO Worth the Money?
An honest look at whether AI search optimisation is worth investing in. Real costs, real results data, and a straightforward ROI calculation to help you decide.
For most businesses, yes — but it depends on your situation. AI search traffic converts at around 27%, compared to 2.1% from traditional Google clicks. The catch: it takes 3-6 months to see results, agencies charge between £1,500 and £10,000 per month, and the space is still young. The good news is that the free basics can get you started with zero spend.
The numbers that matter
AI search is growing fast. Around 40% of UK adults now use ChatGPT, Perplexity, or Google AI Overviews at least once a week. When someone asks an AI platform a question and it recommends your business, that person is already close to making a decision. That is why the conversion rate is so much higher than a standard Google click.
But "higher conversion rate" only matters if AI platforms actually mention you. Right now, most businesses are invisible to AI search. Our audits show that 73% of UK businesses are not mentioned in any AI search results for their core services.
What does it actually cost?
| Approach | Monthly cost | What you get |
|---|---|---|
| Do it yourself (free) | £0 | robots.txt fixes, Bing submission, basic schema, FAQ content |
| AI search tools | £50 – £500 | Visibility tracking, automated optimisation, alerts |
| Specialist agency | £1,500 – £10,000 | Full strategy, content, technical optimisation, ongoing monitoring |
| Enterprise agency | £10,000+ | Multi-platform, multi-market, dedicated team |
For a full breakdown, see our AI search optimisation cost guide.
A simple ROI calculation
Suppose you are a solicitor charging an average of £3,000 per client. You currently get 2 enquiries per month from your website. If AI search optimisation brings you just 1 extra enquiry per month — and it converts at 27% — that is roughly 3 extra clients per year. That is £9,000 in revenue from a £1,500/month agency spend (£18,000/year).
At that price point, you need AI search to deliver about 6 extra clients per year to break even. For higher-value services, the maths works out faster. For lower-value transactions, you may want to start with the free basics or a tool instead.
When it is NOT worth it
- Your website is not ready. If you have a 5-page brochure site with no blog and no FAQ content, spend money on your website first. AI search optimisation works best when there is actual content for AI to reference.
- You cannot wait 3-6 months. This is not pay-per-click. Results take time. If you need leads tomorrow, run Google Ads.
- Your customers do not use AI search. If your target market is over 65 or works in a sector that is very slow to adopt new technology, AI search volume may be too low to justify the spend right now.
When it IS worth it
- You are in a competitive service sector (legal, accounting, finance, healthcare, technology). These are exactly the questions people ask AI.
- Your average client value is above £1,000. The ROI calculation works quickly at higher values.
- You already have a decent website. AI search optimisation builds on existing content. The better your site, the faster the results.
- Your competitors are not doing it yet. Being first matters. The businesses that appear in AI results now are building an advantage that will be hard to catch later.
Start free, then decide
You do not have to spend money to start. Follow our plain English guide to getting found by AI to do the free basics. Then get a free audit to see where you stand. If the results show real opportunity, that is when you compare agencies or tools.
Related questions
Oliver Mackman
AI Search Analyst, SEOCompare
Oliver leads SEOCompare's editorial and comparison research. With over a decade in digital marketing, he oversees agency evaluation, tool testing, and AI search data analysis.
Last reviewed: 7 April 2026
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