Key takeaways
- Ahrefs has the strongest backlink data, Semrush has the widest feature set, Moz is the cheapest way in, and SE Ranking gives the most for the money.
- All four now sell AI visibility tracking, but mostly as a paid add-on. Check what your plan actually includes before you buy.
- SE Ranking is the best pick for agencies and freelancers juggling many projects. Semrush is the best pick when you need PPC, content and AI data under one login.
- None of these suites replaces a dedicated AI visibility platform if AI search is a real revenue channel for you.
- Pricing figures below come from third-party roundups and vary between sources. Confirm everything on the vendor pricing pages.
The short answer
There is no single winner. Anyone who tells you otherwise is selling a trial link (and yes, nearly every comparison out there uses affiliate links, including several I read for this guide).
Here is the honest version. Ahrefs wins when backlink accuracy drives your work. Semrush wins when you want marketing data beyond SEO. Moz wins on entry price and ease of use. SE Ranking wins on value and project limits. What changed in 2026 is that all four bolted on AI visibility tracking, which makes the old "which has the bigger keyword database" argument only half the story.
| Tool | Best for | Standout strength | Main weakness |
|---|---|---|---|
| Semrush | Agencies and teams needing PPC, content and AI data | Feature breadth | Highest price, thin base tier |
| Ahrefs | Link builders and content teams | Backlink index and clean UI | AI tracking sold separately |
| Moz Pro | Solo SEOs and small businesses | $49 entry plan, easy to use | Smaller keyword and backlink databases |
| SE Ranking | Agencies, freelancers, multi-site owners | Project limits and price | Smaller data sets than the big two |
Semrush
Semrush is the broadest platform here. SEO, PPC, content, social, local and AI search all live in one account. One comparison I read says its keyword tool returns the widest set of related terms per seed, with intent and SERP-feature data attached. Its backlink index trails Ahrefs but refreshes roughly daily.
The cost of that breadth is price and complexity. Third-party roundups list the SEO plan at about $139 a month, and Semrush One tiers at $199 (Starter), $299 (Pro+) and around $549 (Advanced), with discounts for annual billing. The AI Visibility Toolkit is listed at $99 per domain per month billed annually, and it is bundled into Semrush One plans from Starter up. Sources disagree on whether the $139 plan includes any AI tracking, so verify that on the pricing page.
For content work, Semrush is the most hands-off of the four. One head-to-head with SE Ranking noted that Semrush generates a whole article for you, whereas SE Ranking drops you into an editor where you define the structure and ask the AI assistant to fill sections.
One structural quirk: Semrush pushes you into a project as soon as you click into SEO. Fine for one site. Annoying if you manage many or just want to jump to keyword research.
Ahrefs
Ahrefs still runs the deepest backlink index of the group, according to a six-year side-by-side comparison on client sites. It shows the most referring domains for most sites and refreshes often. The interface stays clean even at that depth, which is rarer than it sounds. Its keyword list is smaller than Semrush's but well labeled, with good click metrics.
The pricing picture is muddier. One roundup lists entry at $129 a month, another says "from $29", which probably points at a newer or lower tier. Treat both as unconfirmed. What is more consistent: AI tracking is sold separately as Brand Radar, starting around $199 a month and rising with the number of AI platforms and prompts. Extra seats run roughly $40 to $80, cheaper than Semrush's $45 and up if you have a team of three or more.
The Arboreal Marketing review also claims Ahrefs includes 100,000 monthly credits for AI connectors against 50,000 for Semrush. That is one agency's account, so check the vendor docs before you build a workflow around it.
The same review points out a catch. The base tier has only 5 projects and 750 tracked keywords. For a freelancer with a dozen clients, that runs out fast.
Moz Pro
Moz is the odd one out, and I think that is fine. Its Starter plan is $49 a month with a 30-day trial, which makes it the lowest-risk way to try a real SEO suite. You get keyword research, rank tracking and site audits with a simpler Priority score and a clean spam score view.
The trade-off is data depth. Moz's backlink and keyword databases trail both Ahrefs and Semrush, and its backlink index updates weekly rather than daily. Suggestions per keyword query are capped too.
Moz has an AI visibility product called AI Explorer that tracks by prompts. Extra prompts reportedly cost $50 per 100, and extra AI visibility dashboards $20 each. That pricing is from one roundup, so confirm it.
Is Moz still worth considering? For most people comparing all four, probably not. For a solo operator or a small business that wants fundamentals done cleanly on a tight budget, yes.
SE Ranking
SE Ranking is the one I would look at first if you are price sensitive but need real features. Listed pricing is about $129 a month for Core ($103.20 on annual billing), with an AI Search Toolkit add-on at around $89 a month. There is a 14-day free trial with no card needed, and extra users cost roughly $16 a month. That user price is a big gap against Semrush.
The Arboreal Marketing review, written by an agency that is also an SE Ranking affiliate (they disclose it), says the entry tier includes 10 projects and 2,000 tracked keywords. That is double the projects of Ahrefs at the lowest level. They also praise the SE Ranking and Claude MCP connection for keyword research and clustering, and say it pulls full project analysis rather than only research data. Take the enthusiasm with the affiliate context in mind, but the project-limit point matches what other comparisons say.
Where SE Ranking loses: data size. A Style Factory comparison says Semrush's keyword and backlink databases are significantly larger and its AI visibility reporting more reliable. SE Ranking also has a separate standalone AI product.
Head-to-head on what matters
Keyword research
Semrush gives the most related terms and the richest SERP context. Ahrefs gives fewer but cleaner terms with strong click data. Moz is simpler and capped. SE Ranking is solid and comprehensive for most work, but you will not reach Semrush's depth.
Backlinks and site audits
Ahrefs wins on backlinks, and a Reddit thread in r/bigseo echoes it: Ahrefs feels the most solid for link data and site audits, Semrush is packed with features, and SE Ranking is lighter but surprisingly good. SE Ranking's audits and crawl limits are generous for the price.
AI visibility tracking
This is where the four are most alike and most confusing. Each one tracks mentions across some AI platforms by prompt, and each one charges for it in a different way.
| Tool | AI tracking product | Listed price (verify) | Notes |
|---|---|---|---|
| Semrush | AI Visibility Toolkit | $99/mo per domain annual; bundled in One plans | Conflicting reports on whether base SEO plan includes it |
| Ahrefs | Brand Radar | From about $199/mo | Sold separately, scales with prompts and platforms |
| Moz | AI Explorer | Extra prompts $50 per 100 | Extra dashboards $20 each |
| SE Ranking | AI Search Toolkit | About $89/mo add-on | 14-day trial, no card |
I did not find independent 2026 benchmarks of data accuracy or index size for any of them. Everything on "whose data is better" comes from reviewers' own testing, which is useful but not a lab result.
Project and team limits
SE Ranking wins here. Arboreal Marketing says it beats Ahrefs and Semrush at the lowest tier on both project count and tracked keywords. Ahrefs is cheaper than Semrush on extra seats beyond three users.
Pricing snapshot
| Tool | Entry paid plan (monthly, listed) | AI visibility cost | Free trial |
|---|---|---|---|
| Moz Pro | $49 Starter | Extra prompts and dashboards priced separately | 30 days |
| SE Ranking | $129 Core ($103.20 annual) | About $89 add-on | 14 days, no card |
| Ahrefs | About $129 (some sources say from $29) | Brand Radar from about $199 | Check site |
| Semrush | $139 SEO, $199 Semrush One Starter | $99 per domain annual, bundled in One | 7 days |
These come from affiliate-style roundups with inconsistent numbers. Treat the table as a rough map, not a quote.
Which one should you pick?
- Agency or freelancer with many sites: SE Ranking. Project limits and user pricing decide it.
- Link building and content teams: Ahrefs. The backlink index is the reason to pay.
- Marketing team that wants PPC, content and AI in one place: Semrush, if you can swallow the price.
- Solo SEO or small business: Moz Pro, or SE Ranking if you outgrow it.
One caution. Don't pick purely on the AI add-on. All four vendors treat AI visibility as an upsell, so you may end up paying for the suite and then paying again for the part that tells you how you show up in ChatGPT.
When an SEO suite is not enough for AI search
These suites are SEO tools that added AI tracking. If AI search is becoming a real channel for you, a dedicated platform goes further. Tools like Promptwatch track your brand in the actual interfaces of ChatGPT, Google AI Overviews, Perplexity and others, show AI crawler logs and AI-referred traffic, and then help write and publish content to close the gaps.
The reason that matters is how AI answers get built. Promptwatch's data on software prompts (Sep 28 to Oct 4, 2026) shows docs and help centers earn the largest share of ChatGPT citations at 2.64%, vendor sites 2.01%, and review sites and analysts 1.57%, per the Promptwatch Data software citation report. So for SEO tools themselves, the vendor's docs plus G2 and Capterra profiles shape how AI describes them. Your suite's keyword database won't tell you any of that.
A good setup for many teams: one of the four suites for classic SEO, plus a dedicated AI visibility tool. If you want to browse the field, the GEO software directory at bestgeosoftware.com lists options by category.
And if you would rather hand the whole thing to specialists, 1001 SEO Media is the agency that publishes this site and runs technical SEO, content and AI search work for clients.
Final verdict
If I had to spend my own money: SE Ranking for a small agency, Ahrefs if links are the job, Semrush if I had a real marketing team and budget, and Moz only if the $49 price was the deciding factor. Before you commit, run the same four tasks on each trial: one keyword research seed, one backlink audit, one site crawl, and AI tracking on ten prompts. Then check the live pricing pages, because every number in this guide will have moved by the time you read it.