Best AI SEO Tools (2026): 7 Picks Compared on Price and Caps
Disclosure: this roundup contains no affiliate links, and every vendor link is a plain link. We earn nothing if you sign up for any tool on this page. If that changes, the affected links will be marked and this line will say so. Our affiliate disclosure explains how the rest of the site is funded. Order and conclusions here are not for sale.
By Lennit Herrera, founder and editor, AI Tool Stack Reviews · Last updated November 7, 2026
The short answer: the best AI SEO tool for most small sites and solo writers is Frase, because its cheapest plan ($39 a month billed yearly) already includes the AI writer, an SEO and GEO score and AI-visibility tracking, and it offers a 7-day trial with no credit card. Pick Surfer if your work is tuning individual articles against what already ranks, NeuronWriter if the budget is under $25 a month, and Semrush or Ahrefs if you also need keyword research, rank tracking and backlink data in the same subscription.
Every price, cap, trial and refund term below was read on the vendor’s own pricing page on November 7, 2026. Google’s guidance is quoted from Google Search Central, read the same day. We did not run these tools side by side for this roundup, so there are no hands-on scores or speed tests on this page; where a vendor’s page did not state something, we say so instead of guessing.
On this page
- Our top picks
- Comparison table
- Frase: best overall for small teams
- Surfer: best for on-page content scoring
- NeuronWriter: best on a tight budget
- Semrush: best if you also need keyword and rank data
- Ahrefs: best for backlink data, with AI as an add-on
- Clearscope: best for editorial teams with many users
- Writesonic: best for AI-visibility (GEO) work
- Why MarketMuse is not ranked
- How we chose these tools
- What Google says about AI-written content
- Trials and refunds, side by side
- Frequently asked questions
Our top picks
- Frase: best overall for solo writers and small teams. Starter is $39 a month billed yearly ($468 a year), with 10 articles a month.
- Surfer: best for scoring and tuning articles against the pages that already rank. Discovery is $49 a month billed yearly.
- NeuronWriter: best low-cost option. Bronze is $23 a month with 25 documents and 15,000 AI credits.
- Semrush: best if you need keyword research, rank tracking and AI-visibility reports in one place. The SEO plan is $139 a month.
- Ahrefs: best for backlink and keyword data. Its AI Content Helper sits in Content Kit, from $99 a month on top of a plan.
- Clearscope: best for editorial teams, since every plan has unlimited users. Essentials is $129 a month.
- Writesonic: best if your main goal is showing up in AI answers. Starter is $79 a month billed yearly, with a stated 7-day refund.
Comparison table
| Tool | Entry plan and price | Entry plan cap | Free option | Best for |
|---|---|---|---|---|
| Frase | Starter, $39/mo billed yearly | 10 articles, 25 AI generations, 1 seat | 7-day trial, no card | All-in-one for small teams |
| Surfer | Discovery, $49/mo billed yearly | 120 documents, 10 tracked pages, 1 seat | “Start for Free” button; terms not stated | On-page scoring |
| NeuronWriter | Bronze, $23/mo | 2 projects, 25 documents, 15,000 AI credits | 7-day test on Gold terms | Tight budgets |
| Semrush | SEO, $139/mo ($117.33/mo yearly) | 5 websites, 500 keywords tracked daily | Free plan, plus a 7-day trial for new users | Research plus rank tracking |
| Ahrefs | Lite, $129/mo, plus Content Kit from $99/mo for AI writing | 750 tracked keywords, 1 user | Ahrefs Free (site data only) | Backlink data |
| Clearscope | Essentials, $129/mo | 50 tracked queries, 20 drafts, unlimited users | 14-day trial | Editorial teams |
| Writesonic | Starter, $79/mo billed yearly | 15 AI articles, 50 prompts, 1 user | “Start free”, no card; 7-day refund | AI-visibility (GEO) |
All prices in US dollars, read on each vendor’s pricing page on November 7, 2026. “Billed yearly” means the monthly figure is charged as one annual payment.
Frase: best overall for small teams
Frase’s pitch is one subscription for the whole loop: research, a draft, an on-page score and a check on whether AI assistants mention you. Its own line is “Frase does the work. You stay in charge.” The plan structure backs that up better than most here, because the features that other tools hold back for higher tiers are on Frase’s cheapest plan.
- Starter: $39 a month billed yearly ($468 a year; the card shows a struck-through $49). 10 articles and 50 audit pages a month, 25 AI generations, 20 AI Visibility prompts, 1 seat, 1 domain.
- Professional: $103 a month billed yearly ($1,236 a year). 40 articles, 100 AI generations, 50 prompts, 3 seats, 5 domains.
- Scale: $239 a month billed yearly ($2,868 a year). 100 articles, 350 AI generations, 75 prompts, 5 seats, 10 domains.
Frase’s pricing page says its agent writer works “on every plan, on any content type,” and the SEO and GEO score is on Starter too. What changes as you climb is which AI engines the visibility tracker checks: Professional adds Perplexity, and Scale adds Claude and Gemini. Extra seats cost $29 a month on Professional and Scale, and optional overages are $5 per article on Professional or $4 on Scale.
The catch: there is no free plan, and the pricing page says nothing about refunds, so treat the 7-day trial (no credit card) as your only test window. We cover the plan limits and terms in more depth in our Frase review.
Surfer: best for on-page content scoring
Surfer is built around its Content Editor and Content Score: you write or paste a draft, and it scores the page against what already ranks for the term. Its old pricing address, surferseo.com/pricing, now redirects to surfer.ai/pricing.
- Discovery: $49 a month billed yearly. 120 documents, 10 tracked pages, 1 seat, no AI-visibility prompts.
- Standard: $99 a month billed yearly. 360 documents, 50 tracked pages, 3 seats, 25 prompts tracked weekly.
- Pro: $182 a month billed yearly. 360 documents, 200 tracked pages, 5 seats, 50 prompts daily.
- Peace of Mind: $299 a month billed yearly. “Unlimited*” documents, 500 tracked pages, 10 seats, 100 prompts daily.
- AI Search Analytics: $82 a month billed yearly. A tracking-only plan with no content editor.
The Content Score and Surfer’s AI assistant, Surfy, are listed on every plan. One-click optimisation starts at Standard, and templates and custom voices at Pro. Surfer’s FAQ says annual billing is “up to 17%” cheaper than monthly, but the page shows no monthly prices, so we don’t quote any here.
The catch: the cheapest plan tracks no AI prompts at all. If AI-visibility tracking matters to you, the real entry price is $99 a month. The page also states no trial length and no refund terms; cancelling turns off auto-renewal and you keep access to the end of the paid period. For a plan-by-plan breakdown, see Frase vs Surfer SEO.
NeuronWriter: best on a tight budget
NeuronWriter is the low-cost option in this group, and it is the only one whose entry plan costs less than $25 a month. It covers content editing against competing pages plus an AI credit allowance for drafting.
- Bronze: $23 a month. 2 projects, 25 documents, 15,000 AI credits.
- Silver: $45 a month. 5 projects, 50 documents, 30,000 AI credits.
- Gold: $69 a month. 10 projects, 75 documents, 45,000 AI credits, 75 plagiarism checks, unlimited seats.
- Platinum and Diamond: $93 and $117 a month, for 25 and 50 projects.
The pricing page says annual billing gives “2 months free,” and it shows annual figures such as $230 a year for Bronze. Bronze and Silver get “Standard AI templates”; Gold and up get advanced and custom templates. NeuronWriter offers a 7-day test “under the Gold plan terms,” and a refund can be requested for the first plan purchased within 30 days.
The catch: the pricing page doesn’t describe the content score in detail, and the cheaper plans limit templates. It suits a solo blogger watching costs better than an agency.
Semrush: best if you also need keyword and rank data
Semrush is not a content editor first. It is a full SEO suite (keyword research, site audits, rank tracking) that has added AI-visibility reports to its main plans. Its plans are SEO, Starter, Pro+ and Advanced.
- SEO: $139 a month, or $117.33 a month billed yearly. 5 websites, 500 keywords tracked daily.
- Starter: $199 a month, or $165.17 billed yearly. Adds 50 AI prompts tracked daily.
- Pro+: $299 a month, or $248.17 billed yearly. 15 websites, 1,500 keywords, 100 prompts daily.
- Content Toolkit: $60 a month, sold separately. Semrush lists “unlimited standard articles” and 5 SEO-boosted articles a month.
Semrush offers a free plan (1 project, 10 reports a day) and says “Try Semrush free for seven days” for new users. We could not find a refund policy on the pricing page, so we don’t say it offers one.
The catch: if all you want is help writing articles that rank, $139 a month buys far more research data than you need. Semrush makes sense when one subscription has to cover research, tracking and content together.
Ahrefs: best for backlink data, with AI as an add-on
Ahrefs is best known for its backlink index and keyword data. Its AI writing features are not in the base plans: AI Content Helper is part of Content Kit, “From $99/mo,” alongside AI Content Grader.
- Starter: $29 a month.
- Lite: $129 a month. 750 tracked keywords, 150 AI prompt checks, 1 user.
- Standard: $249 a month. 2,000 tracked keywords, 300 prompt checks.
- Advanced: $449 a month. 5,000 tracked keywords, 600 prompt checks.
The page says “Pay annually, save up to 17%” but shows no annual figures. There is an “Ahrefs Free” tier that gives you Ahrefs data on your own site. Brand Radar AI, the AI-visibility product, starts at $199 a month.
The catch: to get AI drafting on Ahrefs you pay for a plan and then Content Kit on top, so, for example, Lite plus Content Kit comes to $228 a month at the listed prices. It is the right buy when backlink research is the main job and AI writing is a bonus.
Clearscope: best for editorial teams with many users
Clearscope focuses on content grading and briefs for writers, and it is the only tool here with unlimited users on every plan. That matters when a team of freelancers all need access.
- Essentials: $129 a month. 50 tracked queries, 50 pages, 20 Discoveries and 20 Drafts a month.
- Business: $399 a month. 300 tracked queries, 300 pages, 50 Discoveries, 20 Drafts.
Add-ons are priced per unit: extra queries cost $6.50 each on Essentials or $5.50 on Business, and extra drafts $50 or $20. Yearly billing is available only on a custom plan. Clearscope offers a 14-day free trial and says you can “cancel anytime without penalty.”
The catch: 50 tracked queries is a small allowance for $129, so it fits teams that publish a few high-value pieces rather than many short ones.
Writesonic: best for AI-visibility (GEO) work
Writesonic has repositioned from an AI writer into what its pricing page calls “SEO + GEO in one platform,” meaning it focuses on tracking how AI assistants mention your brand and then fixing it.
- Starter: $79 a month billed yearly. 15 AI articles a month, 50 prompts tracked, 1 user, 1 project.
- Basic: $199 a month billed yearly. 25 articles, 100 prompts, 2 users.
- Growth: $399 a month billed yearly. 50 articles, 200 prompts, 3 users, 2 projects.
The page says “Start free. No credit card needed,” and it states a plain refund window: a “7-day, no-questions-asked refund.” NeuronWriter is the only other tool here with a stated refund term. Extra users cost $50 each on Basic and Growth.
The catch: at $79 a month billed yearly, Writesonic costs twice Frase’s Starter plan for 15 articles. It earns its place if AI-search tracking is the main goal. Our Writesonic review covers the product in more detail.
Why MarketMuse is not ranked
MarketMuse is a well-known content-planning tool with what it calls “patented topic modeling technology,” and it has a free tier (1 user, 10 queries a month). But its pricing page shows no prices for any paid plan; every one says “Book a demo.” We don’t rank tools whose cost a reader can’t check, so it is listed here for completeness only.
How we chose these tools
We started from well-known AI SEO tools and kept the ones that do at least one of three jobs: score a draft against ranking pages, write a draft from a brief, or track whether AI assistants cite your site. Then we read each vendor’s own pricing page on November 7, 2026, and ranked on what a buyer can verify:
- Price of the first useful plan, including any add-on needed for AI writing (this is what moved Ahrefs down).
- What the entry plan actually includes: articles or documents, AI generations, seats and AI-visibility prompts.
- Whether you can try it first, and whether the vendor states a refund policy.
- Published prices. A tool with no public pricing is not ranked.
We did not use third-party review sites for any figure, and we did not run our own ranking experiments for this page. A tool’s score or “optimisation” grade is the vendor’s own metric, not a ranking promise.
What Google says about AI-written content
Google does not ban AI-assisted writing. Its Search Central guidance on generative AI content asks that AI-written pages meet the same standards as any other: “make sure your work meets the standards of the Search Essentials and our spam policies.” It also warns that using these tools to “generate many pages without adding value for users may violate Google’s spam policy on scaled content abuse.”
In practice that means an AI SEO tool is a drafting and checking aid, not a shortcut. A high content score on a page that says nothing new will not fix it. If you are new to this workflow, our guide on how to use AI for content walks through where AI helps and where a human edit is still needed, and our roundup of the best AI writing tools covers general-purpose writers.
Trials and refunds, side by side
| Tool | Trial or free tier (as stated) | Refund (as stated) |
|---|---|---|
| Frase | 7-day trial, no credit card | Not stated on the pricing page |
| Surfer | “Start for Free” button; no length stated | Not stated; access runs to the end of the paid period |
| NeuronWriter | 7-day test on Gold plan terms | First plan purchased, within 30 days |
| Semrush | Free plan; 7-day trial for new users | Not stated on the pricing page |
| Ahrefs | Ahrefs Free (your own site’s data) | Not stated on the pricing page |
| Clearscope | 14-day trial | Not stated; “cancel anytime” |
| Writesonic | “Start free,” no credit card | 7-day, no-questions-asked |
If a refund matters to you, check the vendor’s terms page before paying for a year up front. Several of these tools discount annual billing by up to 17%, and an annual charge is the hardest one to undo.
Frequently asked questions
What is the best AI SEO tool for beginners?
Frase is the easiest starting point on price and scope: its $39-a-month Starter plan (billed yearly) includes the AI writer, the SEO and GEO score and AI-visibility tracking, and the 7-day trial needs no credit card. If $39 is too much, NeuronWriter’s Bronze plan is $23 a month.
Is there a free AI SEO tool?
Semrush, Ahrefs and MarketMuse all list free tiers, but they are limited: Semrush’s free plan allows 1 project and 10 reports a day, Ahrefs Free covers your own site’s data, and MarketMuse’s free tier allows 10 queries a month with no briefs. None of them includes full AI drafting.
Frase or Surfer: which is better?
Frase is cheaper to start ($39 vs $49 a month, both billed yearly) and includes AI-visibility tracking on its cheapest plan. Surfer is stronger if you mainly want to score and tune drafts against ranking pages, but AI-prompt tracking only starts on its $99 Standard plan. Our Frase vs Surfer SEO comparison goes plan by plan.
Do I need Semrush or Ahrefs if I have a content tool?
Not to write articles. A content tool like Frase, Surfer or NeuronWriter handles briefs, drafts and on-page scoring. Semrush and Ahrefs earn their higher prices when you also need keyword research at scale, rank tracking across many terms or backlink analysis.
Will Google penalise content written with an AI SEO tool?
Not for using AI. Google’s guidance says AI-generated content must meet the same Search Essentials and spam policies as anything else, and it warns that producing many pages “without adding value for users” can count as scaled content abuse. The tool doesn’t decide that; what you publish does.
What does “GEO” or “AI visibility” mean in these tools?
It means tracking whether AI assistants such as ChatGPT, Perplexity or Google’s AI answers mention or cite your site for a set of prompts. Frase, Surfer (from Standard), Semrush (from Starter), Ahrefs (Brand Radar AI) and Writesonic all sell some version of it, with different prompt limits per plan.
Bottom line
For most small sites, Frase is the best value: one subscription, the AI writer and AI-visibility tracking on the cheapest plan, and a no-card trial. Choose Surfer for article scoring, NeuronWriter for the lowest bill, Clearscope for a large editorial team, and Semrush or Ahrefs only when you need their research data as well. Whichever you pick, start on the trial or the monthly plan before paying for a year, because plan names, caps and prices in this category change often, and the figures above are only as current as November 7, 2026.
