AI SEO tools have split into two camps: ones that help you write better, and ones that run the whole cycle from keyword to published post. Both work, but they fail in very different ways. Here are the five we rate, plus the honest warning nobody selling these tools will give you.
How we pick and score: see our method and rubric. Scores are not for sale, and skipped tools carry no affiliate link.
Transparency: some links below are affiliate links. If you start a paid plan through them we may earn a commission at no extra cost to you, and it never changes which tools make this list or what we say about them. One tool here is my own product, and I’ve flagged that clearly. Hayley Brown.
Read this before you buy any of them
I have to start with the part the sales pages leave out, because I learned it the hard way on this very website.
In 2024 and 2025 this site published over a thousand AI-assisted articles. Traffic peaked at under 100 visitors a month, and Google buried almost every page around position 45. The tooling worked exactly as advertised. The strategy was wrong. Google’s scaled content abuse policy targets content produced at volume to game rankings, whether a human or a machine wrote it, and once a domain is judged that way the suppression applies site-wide, not page by page.
So the rule I would give anyone using these tools: use them to make a small number of pages genuinely good, not to make a large number of pages exist. Every tool below is safe and useful with a human editing, adding real experience, and publishing selectively. Every tool below will hurt you if you point it at “publish 50 posts a month” and walk away. That is not the tool’s fault, but you will pay for it, and it takes a long time to undo.
| Tool | What it’s really for | Best suited to | Starting point |
|---|---|---|---|
| Frase | Research and briefs from live SERP data | Writers and editors | Paid, low entry tier |
| SEO Autopilot AI | Full cycle: content, publishing, rank and AI visibility | Agencies and busy owners | 14-day free trial |
| Outranking | Optimisation scoring and content workflow | Teams publishing regularly | Paid plans |
| Simplified | Content plus design and social in one place | Solo marketers | Free tier |
| CustomGPT | Answer engine trained on your own content | Sites with big doc libraries | Paid, free trial |
1. Frase: the best research and brief tool
Frase analyses what currently ranks for your target query and turns it into a brief: the questions people ask, the subtopics competitors cover, the depth expected. You then write with that structure in front of you, either yourself or with its AI assist.
Best for: anyone who writes their own content but wastes hours working out what a page should cover. This is the tool I would keep if I could only keep one, because it improves the thinking rather than replacing it.
Where it falls down: its AI writing is competent rather than brilliant, so treat the output as a first draft. It is a research tool wearing a writing tool’s coat.
2. SEO Autopilot AI: the whole cycle, including AI visibility
SEO Autopilot AI runs the full loop: keyword research, AI content generation, optimisation, then publishing straight into WordPress through its plugin, with webhooks for custom sites and a direct GoHighLevel integration. It also tracks rankings over time and refreshes pages that start slipping.
The feature I think matters most in 2026 is the AI Visibility Checker, which tracks whether your pages are being cited by ChatGPT, Gemini and Claude. Traditional rank tracking is becoming a partial picture, because a growing share of research now happens inside AI assistants that never send a click. Knowing whether you appear there is genuinely useful, and very few tools measure it.
Best for: agencies running multiple client sites, and owners who need consistent output without hiring a content team. The 14-day trial with no charge until day 15 makes it easy to judge.
Where it falls down: automatic publishing is the feature to handle with care, for the reasons at the top of this page. Use the review-before-publish option, keep the volume modest, and edit for real experience. Used that way it is a strong platform. Used as a firehose it will get you in trouble.
→ Try SEO Autopilot AI (disclosure: this is my own product, and the caution above is written from my own mistakes with it.)
3. Outranking: optimisation scoring with a workflow attached
Outranking scores drafts against what is already ranking and tells you concretely what is missing, then manages the pipeline from brief to publish. It is more prescriptive than Frase, which some writers love and others find rigid.
Best for: small teams who publish on a schedule and need a shared standard, so quality does not depend on which person wrote the piece.
Where it falls down: chasing a high optimisation score can produce technically complete and genuinely dull writing. The score is a guide, not the goal.
4. Simplified: content, design and social together
Simplified bundles AI writing with design, video and social scheduling. For SEO alone it is not as strong as Frase or Outranking, but if your real problem is that one person does all the marketing, having the blog post, the graphic and the social posts in one place saves more time than a better SEO score would.
Best for: solo marketers and small businesses where the bottleneck is capacity across channels, not SEO depth.
Where it falls down: it is broad rather than deep. Serious SEO work will outgrow it.
5. CustomGPT: turn your content into an answer engine
CustomGPT trains an agent on your own material, such as help docs, site pages and PDFs, so it answers questions from your content rather than inventing answers. On the SEO side it is useful in two ways: it deflects repetitive support questions, and it surfaces the gaps where you have no content worth citing.
Best for: businesses with a real documentation library, especially SaaS and services with detailed processes.
Where it falls down: it is not an SEO tool in the classic sense. It will not research keywords or write posts, so it complements the others rather than competing.
Getting found inside AI assistants, not just Google
Whichever tool you pick, the target has moved. A large share of informational searches now end in an AI answer with no click, so the goal is increasingly to be the source the AI quotes. In practice that means putting the direct answer near the top of the page, using clear question headings, adding structured data, citing real sources and stating who wrote the page and why they are credible. A file at /llms.txt describing your site and pointing at your best pages is a cheap addition that helps assistants understand you. None of that is exotic. It is the same discipline as good SEO, aimed at a different reader.
Which should you actually pick?
- You write your own content: Frase, for briefs that make the writing sharper.
- You need consistent output without a team: SEO Autopilot AI, with review before publish switched on.
- You have a small team and need a standard: Outranking.
- You are a one-person marketing department: Simplified.
- You have a big documentation library: CustomGPT.
Whatever you choose, publish less than the tool lets you. Ten pages a month that you have genuinely improved will beat a hundred that you have not, and the difference is now the whole ballgame.
Frequently asked questions
Will Google penalise AI-written content?
Not for being AI-written. Google’s policy targets content produced at scale to manipulate rankings, regardless of who or what wrote it. Small volumes of genuinely useful, edited content are fine. Large volumes of thin content are the problem, and the penalty applies across the whole site.
What is the safest way to use an AI SEO tool?
Generate a draft, then add something only you can add: your own screenshots, your own test results, your own opinion, your own numbers. Publish selectively. Keep a human reviewing every page before it goes live.
Do these tools help with ChatGPT and other AI search?
Some do. SEO Autopilot AI tracks whether you appear in ChatGPT, Gemini and Claude, which is otherwise hard to measure. For everything else, being cited comes down to clear structure, direct answers, credible authorship and structured data.
Can I recover if I have already published too much AI content?
Partly, and slowly. The approach that works is to remove or noindex the thin pages, consolidate duplicates into fewer strong pages, add real authorship and first-hand detail, and then wait for a core update to re-score the domain. Expect months, not weeks. It is much easier not to create the problem.
Checked automatically
Last verified 2026-07-27. These rows are gathered automatically from each vendor’s own public pages and refreshed on a schedule. They record what each vendor publishes, not how well the tool performs. Anything we cannot observe is marked “Not stated” rather than guessed. See our method.
| Tool | Free trial | Integrations stated | Pricing published | Security or privacy published |
|---|---|---|---|---|
| SEO Autopilot AI (ours) | Yes | Not stated | No | Yes |
| Frase | Yes | Not stated | Yes | Yes |
| Outranking | Could not verify automatically (the vendor blocks automated checks) | |||
| Simplified | Yes | 30 | No | Yes |
| CustomGPT | Yes | Not stated | Yes | Yes |
About the author: Hayley Brown builds AI-automation tools for businesses and tests AI software daily. She writes Which AI For Business to cut through the hype with honest, hands-on verdicts. More about Hayley →
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