Every list of AI SEO tools has roughly the same twelve names on it. That part is settled, and this list will not fight it. What is not settled is the numbers next to those names. I opened every vendor's own pricing page on 16 August 2026, and three of the pages currently ranking for this term quote Semrush, Ahrefs and Surfer at prices you cannot pay today.
That is the small problem. The bigger one is that half the tools below are selling you visibility inside AI answers, and nobody ranking for this term shows you what those answers actually cite.
So this list does both. Live prices, and a look at 21,508 real citations first, because it changes which of these tools you need.
What AI answers actually cite
Tools in this category work by asking AI engines your buyer's questions on a schedule and logging what comes back, including every source the answer cited. VerifiedDR keeps those sources. In August 2026 it labelled the whole corpus by page type: 16,322 distinct pages across 21,508 citation events.
The first finding is a counting trap. Measured per distinct URL, the mix reads 42% homepage, because 1,884 of those citations point at a bare hostname and each one is a single URL. Weighted by citation events, which is what a reader actually sees in an answer, the picture changes:
| Page type | Share of citation events |
|---|---|
| Listicle or roundup | 17.1% |
| Homepage | 14.6% |
| Product page | 12.0% |
The second finding is that the engines do not behave alike. On the two biggest slices they are close to mirror images of each other:
| Page type | ChatGPT | Perplexity |
|---|---|---|
| Homepage | 33.1% | 12.1% |
| Listicle or roundup | 6.8% | 20.0% |
ChatGPT goes to the brand's own homepage a third of the time. Perplexity goes to somebody else's roundup one time in five.
One caveat, stated plainly. ChatGPT is 3,294 of those 21,508 events, because it only records sources on full paid runs. Perplexity carries most of the corpus. The ChatGPT column is directional, not precise.
Three things follow, and they decide which half of this list you should be shopping in.
- If your buyers ask Perplexity, getting named in other people's roundups is the actual work. You need a tool that shows you the cited pages, not just a score.
- If your buyers ask ChatGPT, your own website does most of the lifting, and the budget belongs in your homepage and product pages rather than in outreach.
- A tool that reports one blended visibility number and no source list cannot tell you which of those two situations you are in. That is the single most useful filter when comparing the AI visibility tools below.
How this list was built
- Every price was read off the vendor's own pricing page on 16 August 2026, with the currency and the billing basis recorded. Several vendors quote in euros and several quote annual-billing rates as if they were monthly. Both are noted below rather than smoothed over.
- Gated pricing is reported as gated. Where a vendor does not publish numbers, this list says so instead of repeating a figure from another blog.
- The vendors' own websites were scored too. A tool selling you search visibility should be able to demonstrate some. That table is further down, and not everyone comes out well.
- No affiliate links. Nothing in this list pays for its position.
The 12 tools at a glance
| Tool | Best for | Entry price | AI engines tracked |
|---|---|---|---|
| 1. VerifiedDR | AI visibility beside your trust data | Free, then $39/mo | 3 |
| 2. Semrush | One platform for everything | $139/mo | 4+, from $199/mo |
| 3. Ahrefs | Backlink and competitor research | €27/mo | Add-on, from €179/mo |
| 4. Surfer | Content optimization | €49/mo yearly | From €99/mo tier |
| 5. Profound | Deep source analysis | $99/mo yearly | 1, up to 9 |
| 6. Otterly.AI | Cheapest credible monitor | $29/mo | 4, plus paid add-ons |
| 7. Clearscope | Editing human-written content | $129/mo | 50 tracked prompts |
| 8. Frase | Briefs on a budget | $39/mo yearly | 2, up to 5 |
| 9. Writesonic | Volume content plus tracking | $79/mo yearly | 3, up to 10 |
| 10. Peec AI | Mid-market AI search analytics | Not published | 6 |
| 11. Rankability | Content quality for agencies | $99/mo yearly | 2, up to 4 |
| 12. Koala AI | Cheapest article generation | $9/mo | None |
The 12 best AI SEO tools
1. VerifiedDR
Best for teams who want the AI visibility answer without running a second platform for it.
The reason it leads this list is the argument made at the top of the page. Whether an engine cites you at all is mostly downstream of whether it trusts your website, and that is the same evidence a backlink tool already holds. VerifiedDR puts both on one site profile: tracked questions with every AI answer shown verbatim and the brands named in each, sitting next to Domain Rating, TrueDR, the backlink map and keyword positions for the same website. It is also the tool whose citation corpus produced the numbers at the top of this article, which is the practical difference between logging a score and keeping the sources behind it.
It is the cheapest way into the category with real prompt volume. Free gets you 3 tracked keywords and a one-time 4-question AI scan. Pro is $39/mo for 20 keywords and 25 prompts per scan, Max is $99/mo for 50 keywords and 75 prompts, Ultra is $199/mo for 100 keywords and 200 prompts. There is a $9 seven-day trial, and annual billing gives 4 months free. Websites are unlimited on every tier, which is unusual here.
The honest limits: three engines, ChatGPT, Perplexity and Google AI Mode, so a Copilot or Claude requirement rules it out. The full refresh is weekly rather than daily, so it is the wrong tool for same-day signal during a launch. And it does not write or grade your drafts, so it sits beside a content tool rather than replacing one.
2. Semrush
Best for the team that wants one bill and one login.
Semrush is the default answer in almost every list for a reason. Keyword research, site audits, competitor analysis and AI visibility tracking across Google, ChatGPT, Perplexity and Gemini all live in the same product, so nobody has to reconcile two sets of numbers.
Month to month it is $139 for the SEO plan, $199 Starter, $299 Pro+ and $549 Advanced. Annual billing drops those to $117.33, $165.17, $248.17 and $455.67 per month. AI visibility starts at Starter, so $199 month to month is the real entry point for it, with 50 prompts tracked daily rising to 100 at Pro+ and 200 at Advanced.
The honest limits: it is the most expensive way to answer one narrow question. If AI visibility is all you want, you are buying an entire suite to get it.
3. Ahrefs
Best for backlink and competitor data, which is what decides whether you are citable in the first place.
Ahrefs still has the backlink index most people trust, and Brand Radar now covers AI search tracking across ChatGPT, Perplexity, AI Overviews, Gemini, Claude and Copilot.
Pricing is in euros: Starter €27/mo, Lite €119, Standard €229, Advanced €419, Enterprise €1,394 with an annual commitment. Brand Radar AI starts from €179/mo on top, with extra prompt packages at €46.70, €93 and €234 per month for 2,500, 7,000 and 25,000 checks.
The honest limits: the AI tracking is a paid add-on, not an included feature, and it is the most expensive add-on in this list. Price the total before comparing it to a standalone monitor.
4. Surfer
Best for writers who want a draft scored against the live result page before it ships.
Surfer remains the strongest content editor in the category, and it has grown an AI Search Analytics side that tracks prompts across several models with mention gap analysis.
All plans are quoted billed yearly and in euros: Discovery €49/mo for 120 documents and 10 tracked pages, Standard €99 for 360 documents and 25 AI prompts weekly, Pro €182 for 50 prompts daily and 5 brand workspaces, Peace of Mind €299 for 100 prompts daily and API access, Enterprise €999. AI Search Analytics can also be bought alone at €158/mo for 100 daily prompts.
The honest limits: prompt tracking does not appear until the €99 tier, so the €49 headline you see quoted elsewhere buys you the content editor and nothing else.
5. Profound
Best for finding out which publications are shaping what AI says about you.
Profound goes deeper on source analysis than anything else here. Given the citation split at the top of this article, that is the right shape of tool if your buyers live on Perplexity and your problem is that other people's roundups keep naming somebody else.
It now publishes pricing, which is worth saying because most lists still describe it as sales-gated. Starter is $99/mo billed yearly for ChatGPT only, 50 prompts and 100 agent credits. Growth is $399/mo billed yearly for 3 answer engines and 100 prompts. Enterprise is custom and covers up to 9 engines with SSO and SOC 2.
The honest limits: the $99 tier is one engine. Read the plan before you compare that number to a $99 competitor covering four.
6. Otterly.AI
Best for the cheapest credible monitor when you only need to know whether you are named.
Otterly.AI has the lowest real entry price of the pure-play monitors. Lite is $29/mo for 15 prompts, Standard $189 for 100 prompts with API and MCP access, Premium $489 for 400. Annual billing takes 15% off. All tiers cover ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot.
The honest limits: the engines people ask about most are add-ons. Google AI Mode and Gemini are $9 each on Lite and $59 each on Standard, Claude is $29 on Lite and $109 on Standard. Price your real engine list, not the headline.
7. Clearscope
Best for editorial teams optimizing writing that humans produced.
Clearscope is the grading tool editors actually keep open. Essentials is $129/mo for 50 tracked prompts, 50 pages, 20 topic explorations and 20 drafts. Business is $399/mo for 300 prompts and 300 pages with a dedicated account manager. Users and projects are unlimited on every tier.
The honest limits: the draft allowance is small at every tier and overages are billed in batches, so this is a tool for improving a moderate amount of good content rather than producing a lot of it.
8. Frase
Best value for briefs and outlines on a small budget.
Frase builds briefs from result page research and has added AI visibility tracking on top. Starter is $39/mo annual or $49 month to month for 1 seat, 10 articles and 50 audit pages, tracking ChatGPT and Google AI. Professional is $103 or $129 for 3 seats, 40 articles and Perplexity added. Scale is $239 or $299 for 5 seats, 100 articles and Claude and Gemini added.
The honest limits: engine coverage is tiered, so the full picture costs $239/mo. At Starter you are tracking two engines.
9. Writesonic
Best for producing content at volume with AI search tracking attached.
Writesonic bundles an AI writer, site audits and daily prompt tracking. Starter is $79/mo billed annually for 15 articles, 50 prompts and 50 answers tracked daily across ChatGPT, Gemini and Google AI Overviews. Basic is $199 for 100 prompts, Growth $399 for 200 prompts with sentiment analysis. Enterprise covers all 10 platforms including Perplexity, Claude, Grok, DeepSeek, Copilot and Meta AI.
The honest limits: Perplexity is Enterprise only. Given that Perplexity carries most of the citation volume in the corpus above, that is a real gap on the published tiers.
10. Peec AI
Best for mid-market marketing teams who want breadth of engine coverage.
Peec AI covers six engines on every tier: ChatGPT, Google AI Mode, AI Overviews, Microsoft Copilot, Perplexity and Gemini. That is the widest included coverage in this list and it does not hide engines behind add-ons.
The honest limits: pricing is not published. Four tiers are named, no prices, no prompt limits. Any number you read for Peec in another comparison post did not come from their pricing page, because their pricing page does not have one. Ask them directly.
11. Rankability
Best for agencies running content quality across many client workspaces.
Rankability is built around workspaces and repeatable routines rather than one-off documents. Core is $99/mo billed annually for 30 content assets, 30 optimizations and 5 workspaces on Google and ChatGPT. Scale is $299 for 100 assets and 20 workspaces with Claude added. Advanced is $799 for 300 assets and 60 workspaces with Perplexity added. Users are unlimited on every tier.
The honest limits: Perplexity only appears at $799/mo, and the entry tier's 30 assets go quickly across multiple clients.
12. Koala AI
Best for the lowest cost per published article.
Koala AI writes long-form drafts with live result page context. Essentials is $9/mo for 15,000 words, Professional $49 for 100,000 words with internal linking and deep research, Boost $99 for 250,000. The ladder continues to $2,000/mo for 10 million words. Annual billing saves 20%.
The honest limits: it tracks nothing. This is a writing tool, and it belongs in your stack next to a measurement tool rather than instead of one.
We scored the tools' own websites
Here is a table the rest of this SERP does not have. Every tool above sells search visibility, so their own websites were run through the same scoring VerifiedDR applies to any site. DR is the classic backlink-only score. TrueDR is a trust-checked score computed independently: it starts from the backlink evidence, validates it against real traffic and discounts spam and link schemes. The gap between the two is the interesting column.
| Tool | TrueDR | DR | Gap |
|---|---|---|---|
| Semrush | 87 | 92 | -5 |
| Ahrefs | 86 | 91 | -5 |
| Writesonic | 84 | 84 | 0 |
| Surfer | 83 | 85 | -2 |
| Frase | 83 | 80 | +3 |
| Clearscope | 83 | 78 | +5 |
| Profound | 80 | 79 | +1 |
| Otterly.AI | 79 | 75 | +4 |
| Peec AI | 78 | 75 | +3 |
| Koala AI | 77 | 72 | +5 |
| Rankability | 75 | 74 | +1 |
| SurgeGraph | 70 | 52 | +18 |
| RankIQ | 61 | 69 | -8 |
| VerifiedDR | 58 | 64 | -6 |
| GrowthBar | 33 | 67 | -34 |
Two rows are worth stopping on.
GrowthBar shows DR 67 and TrueDR 33. That is the widest gap in the set by a distance. A large part of that backlink profile does not survive a trust check, on a website that appears in plenty of these roundups. It is also doing under 1,000 visits a month.
SurgeGraph runs the other way, DR 52 against TrueDR 70. Its real trust signals outrun its backlink count, which is the profile you would rather have and the one that almost never gets a mention in a comparison post.
These scores measure each vendor's website, not the quality of its product. A thin backlink profile does not make a content editor bad. It does tell you something about whether the company has solved the problem it is charging you to solve.
The prices in the other lists are wrong
This is the part worth checking yourself, because it takes two minutes and it changes the shortlist. Three corrections as of 16 August 2026.
Semrush. A top-ranking list quotes Starter at $165.17/mo, Pro+ at $248.17 and Advanced at $455.67. Those are the annual-billing rates presented as the price. Month to month you pay $199, $299 and $549. The same list omits the $139 SEO plan entirely.
Ahrefs. Quoted elsewhere as Lite $129 and Standard $249, with AI tracking as a "$50 to $250 add-on". The live page reads €119 and €229, in euros, with Brand Radar AI starting from €179/mo. The €27 Starter plan goes unmentioned in most lists.
Surfer. Two pages ranking for this term in the same month quote it at "from $49/month" and at "Standard $99/mo". Both are reading the same euro-denominated, billed-yearly table and converting it to dollars along the way.
None of this is dishonesty. It is what happens when a list is refreshed by editing last year's copy. It does mean that if you build a budget from a comparison post, you will be wrong by 30% or more before you start.
What to add if you already pay for Semrush or Ahrefs
This is the question the ranking pages skip, and for most readers it is the only one that matters. Three things you already own are directly relevant.
Your ranking pages are your citation pool. Engines overwhelmingly cite pages that already rank, so your position data predicts which of your pages can get cited at all.
Your backlink profile is your eligibility. Being cited is downstream of being covered by sources the model trusts, which is the same graph your backlink tool maps.
AI Overviews already show up in most rank trackers. Check what you have before buying anything. You may have partial coverage you are not looking at.
What none of that covers is the conversational answer, where there is no ranked list and a competitor can be recommended in a sentence that cites nobody. So the decision is narrow.
- Do the free version first. Write ten questions a buyer would type, half branded and half not. Ask them in ChatGPT and Perplexity in a logged-out session so your own history does not flatter the result. Record the answers with the date.
- Named in most answers? You have a monitoring problem, and the cheapest credible tracker solves it. Otterly at $29 or VerifiedDR's free tier will tell you when that changes.
- Absent everywhere? You do not have a measurement problem yet. You have a coverage problem, and what you need is the list of sources being cited instead of you. That is Profound's shape of tool, or VerifiedDR if you want it beside the trust data. It is also closer to digital PR than to analytics.
One thing to resist: do not build a single AI visibility score for the board. Generation is sampled and engines personalize, so the number will move for reasons you cannot explain and you will spend a quarter defending noise. Report the share of unbranded buyer questions where you appear, the cited sources you do not own, and any factual error the model repeats about you.
FAQ
What are AI SEO tools?
Two different products share the name. The first uses AI to speed up classic SEO work: keyword research, briefs, drafting and grading content against the result page. The second measures whether AI engines mention and recommend you, by asking your questions on a schedule and logging the answers and their sources. Most lists mix them together. Decide which one you are buying before comparing prices.
What is the single best AI SEO tool?
There is no single answer, because those two product categories do not compete. If you need one platform and have the budget, Semrush. If you need the AI visibility answer beside the trust data that determines whether you get cited, VerifiedDR. If you only need to write more, Koala at $9/mo does that and nothing else.
How should I compare AI visibility tools?
On cost per prompt per month, not on plan names. Prompts are the pricing unit across the whole category. Then check which engines are included versus sold as add-ons, how often the refresh runs, and whether you can read the raw answers rather than a score.
Do free AI SEO tools work?
For the diagnosis, yes. Asking ten questions manually in ChatGPT and Perplexity costs nothing and usually decides whether you need to buy anything. Free tiers on paid tools are useful for the recurring check afterwards. VerifiedDR's free tier covers 3 tracked keywords and a one-time 4-question scan, and Ahrefs Webmaster Tools covers your own website's backlinks.
Which AI engine should I optimize for?
Whichever one your buyers use, and the tactics differ. In the citation corpus above, ChatGPT cited brand homepages 33.1% of the time against Perplexity's 12.1%, while Perplexity cited listicles 20.0% against ChatGPT's 6.8%. Optimizing for ChatGPT means fixing your own pages. Optimizing for Perplexity means getting into other people's roundups.
Do AI SEO tools improve rankings on their own?
No. Every tool here measures or drafts. None of them publish trust signals on your behalf. Treat the output as a task list, and budget for the work the list describes.