On April 28, 2026, Adobe announced it had completed its acquisition of Semrush, a deal valued at about $1.9 billion when it was announced the previous November. Adobe’s stated reason was not keyword research. It was brand visibility in AI search, which Adobe now folds into its new CX Enterprise system. That one deal changed the Semrush vs Ahrefs question. It is no longer just “which SEO suite has better backlink data?” It is “which company do you want to bet on for measuring how AI talks about your brand?” As Dataslayer’s analysis of the deal pointed out, Ahrefs is now the largest fully independent SEO suite left.
We compared the two specifically for AI search: tracking, research and the path from data to action. Our method is the same one we use for every AI visibility tool, a six-part scorecard called SIGNAL, built from each vendor’s public pricing and documentation plus independent reviews as of October 2026. We did not run paid account tests for this comparison, and we flag where numbers come from third parties.
What changed in 2026
Both companies spent 2025 and 2026 racing to own AI visibility, and they took different routes.
Semrush built an AI Visibility Toolkit as a separate product. Exploding Topics, which is owned by Semrush and discloses that, reviewed it at $99 a month in an update published in January 2026, with a 14-day trial. The toolkit tracks ChatGPT, Perplexity, Gemini and Google’s AI surfaces, and leans on prompt research, an AI visibility score and brand perception reports. Semrush also sells a bundle, Semrush One, that combines AI and classic SEO tools.
Ahrefs built Brand Radar, which started from a huge search-derived prompt index. Ahrefs claims more than 477 million prompts a month across Google AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, Copilot and Grok. Its standard plans include a handful of tracked AI prompts, and the full Brand Radar product is an add-on with several tiers.
Then Adobe closed its Semrush deal. For buyers, the practical question is product direction. Adobe has said Semrush customers can expect continued investment. It has also built a new enterprise system on top of it. Smaller teams should watch whether pricing and packaging tilt toward enterprise over time, a concern several SEO commentators raised when the deal was announced.
How each tool tracks AI answers
The core difference is where each tool starts.
Semrush starts from topics and prompts tied to your brand. Its toolkit suggests relevant prompts, reports an AI visibility score against an industry benchmark, and shows which brands are mentioned and which sources are cited for a topic. The Brand Performance area adds share of voice, sentiment and a perception report on what drives how AI describes you. The trade-off flagged in the Exploding Topics review was cadence: visibility charts were refreshed monthly, and regional data covered only the U.S. and UK at the time.
Ahrefs starts from scale. Brand Radar lets you look up any brand or topic against its index and see AI mentions, citations and share of voice without first building a prompt list. The breadth is unmatched among SEO suites. The trade-off is control: tracking your own prompts in depth requires the higher Brand Radar tiers, and the index is weighted heavily toward Google surfaces by volume.
In plain terms, Semrush is closer to a guided AI visibility program. Ahrefs is closer to an AI visibility search engine.
What each costs a real team
Pricing changes often, so confirm before you buy. Here is the picture from the most recent public figures we could verify.
Semrush’s AI Visibility Toolkit was reviewed at $99 a month as a standalone product, with Semrush One bundles starting at about $165 a month on annual billing. That flat entry price is easy to forecast, which matters for small teams and consultants.
Ahrefs layered its pricing. As a Ryze AI review reported from Ahrefs’ pages in August 2026, the main plans ran from Lite at $129 a month to Advanced at $449, with 5 to 20 tracked AI prompts included. Brand Radar was listed from $199 on the pricing page, and at $398 for select platforms or $699 for all platforms on its own product page, with the top tier adding custom prompts and 2,500 checks a month.
For a small team that wants to start tracking AI visibility this month, Semrush is cheaper by a wide margin. For a team that already pays for Ahrefs and wants full AI coverage, the add-on can more than double the bill. Price the tier you will need in month three, not the one that looks good on day one.
Scoring both on SIGNAL
SIGNAL scores six criteria from 1 to 5, for a maximum of 30. S is surface coverage, I is integrity of sampling, G is granularity of evidence, N is next-step guidance, A is accounting predictability, and L is loop-out, meaning how well data leaves the tool.
On surface coverage, Ahrefs scores 4 for seven engines plus community sources (see our full Ahrefs Brand Radar review), and Semrush scores 3 for the core engines without Copilot or Grok in the reviewed version. Neither covered Claude in the material we reviewed.
On integrity of sampling, both score 3. Ahrefs’ search-backed index is a methodological strength for breadth, and Semrush’s prompt suggestions are tied to real topics, but neither publishes clear detail on how often each prompt is re-run or how answer variance is handled. Semrush’s monthly refresh in the reviewed version also limits trend detection.
On granularity of evidence, both score 4. Each lets you drill into specific prompts, cited sources and competitor mentions.
On next-step guidance, Semrush scores 4 and Ahrefs 3. Semrush’s perception reports and prompt research point more directly to what to fix, while Ahrefs leaves more of the translation to your team.
On accounting predictability, Semrush scores 4 for a flat entry price, and Ahrefs scores 2 for overlapping tiers, check packs and seat fees.
On loop-out, both score 3. Each has exports and APIs in its broader suite, but neither is built around client-ready AI visibility reporting the way some agency-focused trackers are.
That puts Semrush at 21 out of 30 and Ahrefs at 19. The gap is mostly price clarity and guidance. On raw data scale, Ahrefs wins.
Workflow fit matters more than features
The best tool is the one your team already opens every morning. If your SEO team lives in Ahrefs for backlinks and content gaps, adding Brand Radar keeps AI visibility next to the data they trust. If your content and marketing team uses Semrush for keyword research and content briefs, its toolkit slots into that workflow.
Think about who acts on the data. AI visibility improves through content, earned media, reviews and technical fixes. If a PR or content lead will own the response, Semrush’s sentiment and perception reports speak their language. If an SEO analyst will own it, Ahrefs’ link and citation context will feel more natural.
Look at integrations too. If your reporting lives in Looker Studio, a data warehouse or a client portal, check how each tool’s AI visibility data exports, and whether the export includes prompt-level detail or only summary charts. A tool that traps its best data inside its own interface will slow down every monthly report.
Agencies have a separate consideration. Ahrefs’ instant lookups make it easy to show a prospect where they disappear in AI answers before you have a contract. Semrush’s flat pricing makes it easier to run separate projects for several small clients. Many agencies end up using both.
Run a two-week bake-off before you sign
Both tools offer ways to test before a long commitment, so use them with a plan rather than clicking around.
Day one, write down the 15 prompts that matter most to your revenue. Mix category questions (“best accounting software for freelancers”), comparison questions (“[your brand] vs [competitor]”) and problem questions (“how to track billable hours”). These are your ground truth.
Days two to four, check how each tool handles those prompts. In Semrush, see whether its suggested prompts overlap with yours and what visibility score it gives you. In Ahrefs, see how many of your prompts, or close variants, exist in the Brand Radar index for your category.
Days five to seven, spot-check by hand. Run ten of your prompts directly in ChatGPT, Perplexity and Google AI Mode, and compare what you see with what each tool reports. AI answers vary from run to run, so you are looking for broad agreement, not an exact match.
Week two, act on one gap from each tool and note which one made the next step clearer. A tool that shows you a problem but leaves you unsure what to do about it will cost you more in staff time than it saves in subscription fees.
At the end, score both on SIGNAL with your own numbers. Your scores may differ from ours, especially on surface coverage if your buyers use an engine one tool skips. That is the point of the exercise.
The verdict by buyer
For a startup, consultant or small marketing team starting AI visibility from scratch, choose Semrush. The flat price, guided reports and prompt research get you to action faster.
For an SEO team already on Ahrefs, add Brand Radar at the tier that matches your engines and prompt needs. You get unmatched breadth without a second login.
For an agency, use Ahrefs for discovery and pitching, and use Semrush, or a focused tracker, for ongoing client tracking where predictable cost matters.
For an enterprise already using Adobe’s marketing stack, Semrush’s new home inside Adobe may be the deciding factor, but get the integration roadmap in writing before you commit.
In short: Semrush wins on price and guidance, Ahrefs wins on scale and independence, and the right answer depends on who on your team will act on what the tool finds.