AI SEO in 2026: 13 tools compared — and which one to choose

The 13 AI SEO tools in one table

The table shows what decides the choice for a small or mid-sized business: what it costs to get started, whether the tool measures what ChatGPT and the other AI engines say about you, whether it changes anything on your site itself, and whether it works in your language. Prices are the lowest paid plan per month, as the vendor shows it, in the vendor's own currency.

"Measures AI answers" means the tool asks the AI engines questions and shows whether your business is mentioned. "Changes your site itself" means it can write fixes or content directly to your website — not just recommend them. The number of engines is the highest the vendor states; the cheapest plans often cover fewer.

Which AI SEO tool fits you? Five examples

The right tool depends less on the feature list than on who will use it and how much time they have. Here are five typical situations and the choice we would make ourselves.

A plumbing firm with 6 employees and no marketing staff

Nobody has time to read reports. What matters is whether the firm shows up when a customer asks ChatGPT "who can replace my heat pump near me?", and that the issues get fixed without anyone having to learn SEO. Choose a tool that both measures and fixes: Geoa or Morningscore. Pure monitoring such as Otterly.AI just gives you a list you will not have time for.

A Shopify store with 500 products

Here the job is volume: product descriptions, titles and structured data across hundreds of pages. Choose a tool with a Shopify integration that can write to your site: Geoa or Morningscore for fixes and measurement, or seo.ai if new content is what you lack most. Check that the tool writes well in your customers' language — clumsy product copy costs sales.

An SEO agency with 20 clients

You probably already have Semrush, Ahrefs or SE Ranking. Start with the AI tracking in the tool you already use — it is the cheapest route. If you need automatic fixes or reports in your clients' language, add a Nordic tool on top for the clients where it pays off.

A B2B software company selling across the Nordics

You need to know whether you are mentioned in Swedish, Norwegian and Danish AI answers — not just English ones. Choose a tool that measures across languages and markets, and check whether extra languages cost more. Geoa measures in Danish, Swedish, Norwegian and English; Peec AI does not charge extra for more countries and languages; at AthenaHQ, more regions require Enterprise.

A large brand with its own marketing team and budget

You need many engines, many prompts and dashboards for leadership. Look at Profound, AthenaHQ or Ahrefs Brand Radar. Profound no longer shows public prices beyond a free trial, so expect an enterprise-level quote.

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The tools one by one

1. Geoa — measures and fixes, built for the Nordics

Price: €39, €99 or €199/mo · 14-day free trial, no card required · Measures: ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews

Geoa is our own tool. It measures whether your business is mentioned when customers ask AI, scores your site on 15 technical points and tracks your Google rankings. Issues go into a prioritised queue, and the fixes you approve are written directly to your website through the integration with WordPress, Shopify, Wix or Umbraco. What can be fixed automatically depends on the platform. Every month it also writes articles that you approve before they are published.

• Best for: small and mid-sized businesses without SEO staff that want the work done — not just a report.
• Strengths: Danish, Swedish, Norwegian and English in both interface and content. Hosting and database in the EU and a public data processing agreement. Nothing is published without your approval.
• Weaker than the big suites: Geoa is a new product from 2026. There is no keyword or backlink database like in Semrush and Ahrefs, and Microsoft Copilot is not measured.

2. Morningscore — SEO tool from Denmark with AI tracking and 1-click fixes

Price: from $69/mo (Lite) to $299/mo (Premium) · 14 days free, no card · Measures: ChatGPT and Google AI Overviews

Morningscore, based in Odense, Denmark, is a classic SEO tool that has added AI features: a ChatGPT tracker, an AI Overviews tracker, AI-written articles and fixes "in 1 click" through the tool, a WordPress and Shopify plugin, or the API.

• Best for: businesses that want classic SEO, AI tracking and fixes in one place.
• Strengths: interface in Danish and Swedish as well as English, and a full classic SEO tool in the same subscription.
• Worth knowing: no Norwegian interface, and the AI tracking covers two engines where several of the dedicated AI tools cover five to nine.

3. seo.ai — AI writes and publishes your content

Price: $149/mo (1 site) or $299/mo (up to 3 sites or languages) · 25% off with annual billing · 7-day trial

seo.ai, based in Kongens Lyngby near Copenhagen, is built to produce content: an AI agent writes articles and publishes them automatically to your website through WordPress, Webflow, Wix, Shopify and more, with link exchange included. Content can be written in over 50 languages, including Danish, Swedish and Norwegian.

• Best for: businesses short on content that want it produced without lifting a finger.
• Worth knowing: we found no tracking of visibility in ChatGPT or other AI engines on seo.ai's own pages — so you will not see whether the content gets you mentioned in AI answers.

4. Semrush — SEO suite with an AI Visibility Toolkit

Price: AI Visibility Toolkit from $99/mo (annual billing) · SEO + AI from $199/mo · Measures: ChatGPT, Google AI Mode and AI Overviews, Gemini and Perplexity

Semrush is the largest all-in-one suite for keywords, competitors and backlinks, and AI tracking now sits on top. You also get a site audit for "AI readiness".

• Best for: marketers and agencies who already live in Semrush.
• Worth knowing: Semrush shows what to fix but does not fix it. A Nordic-language interface is not stated, and its pages disagree on whether there is a free trial.

5. SE Ranking — cheaper suite with an AI add-on

Price: from $129/mo ($103.20 with annual billing) + AI Search from $89/mo · 14 days free, no card · Measures: Google AI Overviews and AI Mode, Perplexity and ChatGPT

SE Ranking covers most of what Semrush does for less, and AI tracking is bought as an add-on.

• Best for: agencies and freelancers who want a cheaper suite.
• Worth knowing: the interface comes in 10 languages, none of them Nordic.

6. Ahrefs — Brand Radar for AI visibility

Price: base plans from $129/mo · Brand Radar AI from $199/mo · limited free version · Measures: Google AI Overviews and AI Mode, Gemini, Perplexity, ChatGPT, Copilot and Claude

Ahrefs is known for its backlink database. Brand Radar measures how often your brand and your competitors appear in AI answers, across seven engines.

• Best for: brand and competitor insight at scale.
• Worth knowing: pure monitoring — Ahrefs changes nothing on your site — and the AI part is an add-on on top of the base plan.

7. Surfer — content optimisation with AI tracking

Price: from €49/mo (annual billing) · AI tracking on all engines from €82/mo · Measures: ChatGPT, Perplexity, Google AI Mode and AI Overviews, and Gemini

Surfer, from Poland, helps you write content that matches what ranks and has an AI writer. The cheapest plan does not track AI answers across engines; that takes AI Search Analytics or one of the bigger plans.

• Best for: writers and content teams who want to optimise every piece.
• Worth knowing: Surfer says it "works with all languages", but it does not change your site itself.

8. Frase — content with built-in AI tracking and publishing

Price: from $49/mo ($39 with annual billing) · 7 days free, no card · Measures: ChatGPT and Google AI; on the Scale plan also Perplexity, Claude and Gemini

Frase writes and optimises content in more than 70 languages and can publish directly to WordPress, Webflow, Sanity and Wix.

• Best for: small content teams who want to write, measure and publish in one place.
• Worth knowing: the cheapest plan tracks only two engines.

9. Otterly.AI — low-cost monitoring of AI answers

Price: from $29/mo ($25 with annual billing) · 7 days free, no card · Measures: ChatGPT, Google AI Overviews, Perplexity and Copilot (AI Mode, Gemini and Claude cost extra)

Otterly.AI, from Austria, does one thing: it shows how often you are mentioned and cited in AI answers and gives a GEO audit with recommendations.

• Best for: anyone who just wants to keep watch and can do the work themselves.
• Worth knowing: no fixes and no content — and no Nordic-language interface stated.

10. Rankscale — most engines for the least money

Price: from $20/mo (Essentials) · Pro $99/mo · 7-day trial on Pro · Measures: ChatGPT, Gemini, Perplexity, Claude, DeepSeek, Mistral, Grok and Copilot

Rankscale, from Vienna, is the cheapest tool on the list and covers the most engines.

• Best for: anyone who wants a wide view across AI engines at a low price.
• Worth knowing: measurement and page audits only; no fixes and no content.

11. Peec AI — dashboards for marketing teams

Price: from €85/mo (monthly billing) to €425/mo · 15% off with annual billing · free trial · Measures: choose 3 of ChatGPT, Google AI Mode and AI Overviews, Copilot, Gemini and Naver (Perplexity on Enterprise)

Peec AI gives clear dashboards of your visibility and brand perception in AI answers, and more countries and languages cost nothing extra.

• Best for: marketing teams reporting across several markets.
• Worth knowing: recommendations, but no changes to your site. Extra engines cost from €25/mo each.

12. AthenaHQ — recommendations and agents for mid-sized teams

Price: $295/mo (17% off with annual billing) · free Essential plan · Measures: ChatGPT, Perplexity, Google AI Overviews and AI Mode, Gemini, Claude, Copilot and Grok

AthenaHQ, from San Francisco, combines broad tracking with a content optimisation agent and integrations with Shopify and Webflow, including for robots.txt and llms.txt.

• Best for: mid-sized, English-speaking teams with budget.
• Worth knowing: more regions and languages require Enterprise. How much the integration changes on the site itself, we could not verify.

13. Profound — the enterprise standard

Price: Enterprise only, custom pricing · 7-day free trial on ChatGPT, Gemini and AI Overviews · Measures: up to 9 engines, including ChatGPT, Perplexity, Gemini, Copilot, Claude and DeepSeek

Profound is one of the most talked-about AI visibility tools in the US and is used by large brands. Its pricing page now shows only a free trial and an Enterprise plan without a public price.

• Best for: large brands with their own marketing team.
• Worth knowing: not built for small businesses, and there is no fixed price to compare.

What about ChatGPT itself?

You can use ChatGPT for free for keyword ideas, drafts and explanations of technical issues — that is the first meaning of AI SEO, which we cover further down. But ChatGPT cannot measure whether it mentions you: the answer changes from one time to the next and from one person to the next. That takes asking the same questions systematically and repeatedly, which is exactly what the tools above do.

How we compared

• Sources: every price and feature was read on the vendor's own pricing or product page on 21 September 2026. We did not use review sites, because in our experience they are often out of date — one of them listed a competitor's price 10–15% wrong in August.
• What we did not do: we have not tested every tool on client accounts for months. So nowhere do we say a tool "works best" — only what it promises and what it costs.
• Why these 13: Semrush, Surfer, SE Ranking and Ahrefs recur on the English top lists that rank highest on Google for "ai seo". The dedicated AI visibility tools (Otterly.AI, Rankscale, Peec AI, AthenaHQ, Profound) are the ones named when you ask AI itself. Morningscore and seo.ai are included because they are Nordic and therefore the obvious alternative for a Nordic reader.
• Updates: prices change fast in this category. Profound removed its public prices between August and September 2026. We re-check the figures, and the date at the top shows when that last happened.

A real example: what ChatGPT answers when asked for a tool

On the night of 21 September 2026, Geoa asked ChatGPT and Gemini the same questions with web search turned on (the questions were in Danish). Two answers show how AI decides who gets mentioned:

• "What is the best GEO tool?" Both engines named four or five tools with price and "best for" — and both took the answer from one and the same comparison page (our own).
• "Which tools can measure my company's visibility in ChatGPT?" Both named four entirely different tools — taken from another comparison page that answered exactly that question directly.

The lesson applies to every industry, not just ours: AI repeats the page that answers the exact question most directly, with names and prices. If you are not on that page, you are not mentioned — however good your product is. For a plumber, it is the page that answers "who can help with a heat pump in my town?". For an accountant, it is "what does an accountant cost for a limited company?". The first task in AI SEO is therefore to find the questions your customers ask and make sure your site answers them directly.

What Nordic measurements show

The English lists have no Nordic data. We measured 1,912 businesses in Denmark, Norway and Sweden from July to August 2026. Two findings change which tool is worth paying for:

• A technically sound site is used as a source far more often. Sites in the best group were used as a source in AI answers in roughly half of cases; sites in the weakest group in under a third. So choose a tool that also fixes the technical issues — not just measures them. See the measurement.
• An llms.txt file on its own made no difference. Sites with and without the file were cited equally often. Do not pay extra for a tool that sells llms.txt as the shortcut. See the measurement.

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What does AI SEO mean? The two meanings

When someone types "AI SEO" into Google, they may mean two entirely different things. It is worth settling that up front, because the work, the tools and the outcome are not the same.

They are not mutually exclusive — most businesses end up needing both. But they solve different problems, and it helps to know which one is yours right now.

1. AI as a tool for your SEO work

This is the more common meaning: you use ChatGPT, Claude or an SEO tool with AI built in to get the work done faster. It works well for some tasks and badly for others, and the difference is worth knowing before you hand your content to a model.

Where AI genuinely saves time:

• Keyword and topic ideas. Getting 50 angles on a topic in a minute really is faster than doing it yourself.
• Drafts and structure. An outline or a first draft you then edit removes the worst of the starting friction.
• Meta titles and descriptions at volume. Mechanical work a model handles well.
• Untangling technical mess. Having an error in robots.txt or a piece of schema markup explained beats searching for it.
• Summarising research. Boiling ten competitor pages down to an overview.

Where it goes wrong — and what it cost us:

We write with AI ourselves. In July 2026 we went through our own marketing content and verified every statistical claim against its primary source. Of 26 claims, 4 held up. The rest were wrong — not invented from scratch, but wrong in ways that are hard to spot:

• Our own module name became an external source. An internal name for our own analysis engine appeared in the text as though it were a research project, and travelled on into eight separate claims.
• Real numbers, wrong technique. Genuine figures from a genuine research paper had been transplanted onto methods the paper never tested. The numbers checked out; the connection did not exist.
• A placeholder became a customer case. The example name from our own form fields was told as a real customer with real results.

None of it looked wrong. That is the whole problem: a language model produces plausible text, and plausible text is precisely what you fail to catch on a read-through. The only method that worked for us was demanding four things of every single number: who measured it, when, on what population, and what is the URL. If one is missing, the number leaves the text.

So this meaning of AI SEO is not a shortcut. AI writes faster than you do. It cannot check itself, and one wrong number in your marketing costs more trust than the saved quarter of an hour was worth.

From AI assistant to automatic SEO

There is a third answer sitting between the two meanings, and it is where most smaller businesses end up: you want neither to learn prompting nor to read up on a new discipline — you want the work done. That is what automatic SEO means in practice.

The difference between an AI assistant and automatic SEO is not how clever the model is. It is whether there is a routine around it. A chatbot answers when you ask, and has forgotten it tomorrow. A routine measures the same thing every week, proposes one concrete change at a time, and lets you approve it before anything is published. That is exactly the control missing from the section above — and it is what makes AI useful for SEO rather than risky.

Three things have to run on their own before it deserves the word automatic:

• Measurement that repeats identically. Same site, same dimensions, same cadence. Otherwise you cannot see whether something worked — only that something is different.
• One prioritised next step. Not a list of 40 errors, but the single fix that matters most right now.
• Execution with an approval in front of it. The change is written to your site through an integration — but only once you have said yes.

That is how the Geoa platform is built. It scores your site on 15 technical dimensions, tracks both your Google rankings (via Search Console and weekly rank tracking) and your mentions in ChatGPT, Claude, Gemini and Perplexity, puts the findings in a prioritised queue, and writes the approved fixes — llms.txt and structured data — straight to your site through the WordPress, Shopify, Cloudflare and other integrations. Which fixes can be written automatically depends on the platform. Every week you get a report on what changed and what moved.

And just as importantly, what it does not do. It does not publish text without your approval. It does not answer your reviews on its own — it drafts a reply that you send. And it does not promise that ChatGPT will mention you: that is a third-party model, and no vendor can guarantee an outcome inside it. We measure it. We do not control it.

2. Visible inside the AI answers

The second meaning is the new one, the part classic SEO does not cover: being part of the answer itself when a customer asks an AI instead of searching. Where SEO is about ranking in a list of links, this is about being the business or the source the AI brings up.

The formal disciplines are GEO (Generative Engine Optimization) and AEO (Answer Engine Optimization). GEO is the academically established term for optimising towards generative engines — formalised in research from Princeton and Georgia Tech (arXiv:2311.09735, KDD '24) — while AEO is used more broadly for all answer surfaces. You will also meet the same field under the names AIO (AI Optimization) and LLM SEO.

The signals that matter most if you want to be citable:

• Answer one question directly and early. Put the short, concrete answer in the first couple of sentences — that is the block AI systems lift out.
• Structure with questions as headings. H2s phrased as the questions customers actually ask.
• Use lists, tables and short paragraphs. Structured content is extracted more easily than walls of text.
• Add structured data. FAQPage, HowTo and Organization make the answer machine-readable.
• Make sure AI can read the page at all. If your page needs JavaScript to show its content, AI crawlers see an empty shell — check it with the AI Readability Check.
• Publish an llms.txt. The file gives AI a curated overview of your business — create one free with the llms.txt generator.

What our own measurements show

Most of what gets written about AI SEO is advice with no measurement behind it. We have measured our own claims — including the ones that did not suit us.

Being cited and being recommended are two different outcomes. We put 576 questions about 465 businesses in Denmark to four AI engines (Geoa, 26 July 2026). The businesses AI cited as a source had a technical score of 77.9 against 72.7 for the rest — a strongly significant difference (p=0.000). But the businesses AI recommended scored 74.9 against 74.9. No difference at all (p=0.988).

In practice that means technical work decides whether your page gets used as a source. It does not decide whether your business gets recommended — there, sector, reputation and demand weigh heavier. Anyone promising you more customers through technical AI optimisation alone is promising more than our data can carry.

Which sources AI actually drew on. AI cited 4,034 sources across 494 domains. 61% were the businesses' own websites. Only six domains recurred across all three sectors, and every one of them was a directory or a register — national business directories, a company register, a review platform and LinkedIn. Your own site plus a handful of directory profiles is what gets read.

How little it takes to be invisible. In the same scan, 22 of the 465 sites had almost no readable text once JavaScript was not executed, and another 38 had under 150 words. Their content exists — but AI crawlers do not run JavaScript by default, so for them it does not. It is the cheapest error to fix and the most expensive to overlook.

AI SEO, GEO and AEO — how they connect

When "AI SEO" is used in the second sense, it is the umbrella; GEO and AEO are the two disciplines under it. They optimise towards different surfaces, but the work overlaps heavily:

And no — it does not replace your SEO. The foundation is shared: a technically sound, crawlable site with clear structure. But the goal shifts from ranking in a list to being part of the answer, and that rewards citability over raw domain authority. It is why a small, sharp business can win AI visibility against larger competitors — most have not started yet.

Getting started

1. Measure where you stand. Run the free GEO test (60 seconds, no login) and see which signals are keeping you out of AI answers.
2. Make sure AI can read your site. Check robots.txt and JavaScript dependency with the AI Readability Check. It is the error that hits hardest and costs least to fix.
3. Make the content answer-friendly. Answer concrete questions directly, with question-shaped headings and short paragraphs.
4. Add structured data and an llms.txt. Use the llms.txt generator and add FAQPage schema.
5. Tidy up your directory profiles. Directories and registers were among the few domains AI drew on again and again. A profile is an afternoon's work.
6. Measure again, and repeat. AI visibility is built over time — track your GEO Score and fix what drags it down.

If you would rather have it done automatically, the Geoa platform measures and fixes these signals for you through the WordPress or Shopify integration — with a 14-day free trial, no card required. See the full picture in the complete GEO guide.

Frequently asked questions about AI SEO

What is the best AI SEO tool in 2026?

It depends on what you want done. If you want to be measured in ChatGPT and have the fixes made for you, including in the Nordic languages, Geoa (from €39/mo) and Morningscore (from $69/mo) are the obvious choices. If you only want AI-written content, look at seo.ai. If you already use Semrush, SE Ranking or Ahrefs, switching on their AI tracking is the cheapest route. The cheapest pure monitoring comes from Rankscale and Otterly.AI.

How much does an AI SEO tool cost?

From $20/mo (Rankscale) through €39/mo (Geoa) to $295/mo (AthenaHQ), while Profound is sold only as Enterprise on custom terms. Most small and mid-sized businesses end up paying the equivalent of €40–130 a month. See the full table.

Is there an AI SEO tool built for the Nordic languages?

Yes, three with roots in Denmark: Geoa (measures ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews and fixes your site, with a Danish, Swedish, Norwegian and English interface), Morningscore (classic SEO with a ChatGPT tracker and 1-click fixes, interface in Danish and Swedish) and seo.ai (AI writes and publishes your content in 50+ languages).

Are there free AI SEO tools?

To get started, yes. Geoa's GEO test is free with no login, Ahrefs has a limited free version, AthenaHQ has a free plan and Profound offers a 7-day free trial. Ongoing tracking and fixes require a paid plan everywhere, but most offer a 7–14 day free trial.

Which tools can measure my company's visibility in ChatGPT?

Geoa, Morningscore, Semrush, SE Ranking, Ahrefs, Surfer, Frase, Otterly.AI, Rankscale, Peec AI, AthenaHQ and Profound all track ChatGPT. The difference is how many other engines they cover and whether they fix anything afterwards. seo.ai shows no AI tracking on its own pages.

Does an AI SEO tool fix my website itself?

Only some do. Geoa and Morningscore can write fixes directly to your site through integrations with WordPress, Shopify and more; seo.ai and Frase publish content; the rest show what should be fixed but leave the work to you.

Are AI SEO tools GDPR compliant?

It depends on the tool, and few say it clearly. Ask for a data processing agreement and where the data is stored. Geoa has hosting and database in the EU and a public data processing agreement; the AI calls themselves may run at providers outside the EU under the EU's standard contractual clauses.

How quickly will I see results from AI SEO?

Technical fixes show once the AI engines have re-read your site, typically after a few weeks. Being mentioned more often takes longer, because it also depends on what other sites say about you. Measure before and after with the same questions, or you will not be able to see a difference.

Should I choose an agency or an AI SEO tool?

If you have one website and nobody to do the work, a tool that both measures and fixes is cheaper than an agency. If you run many sites, complex campaigns or need strategy, an agency can be worth the money — and most agencies use one of the tools in the table themselves.

What does AI SEO actually mean?

It is used for two different things. One is using AI as a tool for your SEO work — letting ChatGPT find keywords, draft copy and explain technical errors. The other is becoming visible inside AI answers, when a customer asks ChatGPT or Perplexity instead of searching Google. They require very different work, and most guides conflate them.

Can I use ChatGPT to write my SEO content?

Yes, but not unchecked. We write with AI ourselves, and when we verified every statistical claim in our own marketing content against its primary source in July 2026, only 4 out of 26 held up. The errors were not invented from scratch — they were plausible, and plausible text is exactly what you fail to catch on a read-through. Demand four things of every number: who measured it, when, on what population, and what is the URL.

Is AI SEO the same as GEO?

Almost. AI SEO is the broad, everyday label; GEO (Generative Engine Optimization) is the precise term for being cited in generative AI answers. When people say "AI SEO" in that sense, they usually mean GEO plus AEO.

What is automatic SEO — is it just AI SEO under a new name?

Automatic SEO is not a tool you ask — it is a routine that runs. The difference between asking ChatGPT for SEO advice and having automatic SEO is not how sharp the model is, but whether the measurement repeats identically every week, whether you get one prioritised next step instead of a list of errors, and whether the fix is written to your site through an integration after your approval. That is the control freehand AI lacks.

Does AI SEO replace my regular SEO?

No. AI SEO builds on top of SEO. The foundation — a technically sound, crawlable site — is shared. But the goal shifts from ranking in a list to being part of the AI answer itself, and it rewards citability over raw domain authority.

Can I measure my AI SEO for free?

Yes. Run the free GEO test (60 seconds, no login). It scores the technical signals that decide whether AI can find, understand and cite you.

Which AI search engines does AI SEO apply to?

The main ones are ChatGPT, Perplexity, Claude and Gemini, plus Google's AI Overviews. The work is largely the same across them: make your content easy to understand, extract and cite.

Can a small business win at AI SEO?

Yes — often more easily than a large one. AI answers reward precise, well-structured content over sheer domain size, and most small and medium-sized businesses have not started yet. You can get far with the free GEO tools.

Is AIO (AI Optimization) the same as AI SEO?

In practice, yes — AIO (AI Optimization) is another name for making your business visible in AI search, like AI SEO, LLM SEO and the precise term GEO. Note, though: "AI optimization" is also used broadly for optimising the AI models themselves — so context decides the meaning.