Most marketing teams did not buy an AI visibility tool. They bought an SEO suite, and the suite grew an AI answer module. That is the real starting position behind the Semrush AI Visibility vs Ahrefs Brand Radar decision: a team already pays for one of the two, a board deck asks what the brand's position is inside ChatGPT and Google AI Mode, and the fastest available answer is the module sitting one tab away. The question is not which company builds better SEO software. It is whether the incumbent AEO feature attached to the suite already in the stack produces numbers a content program can act on.
The two modules answer different questions. Semrush AI Visibility Toolkit is built around a controlled list of prompts checked on a schedule. Ahrefs Brand Radar is built around a very large modeled index of questions the market is likely to ask. Both report mentions, citations, cited pages and competitor visibility. Neither is a general-purpose replacement for the other, and the honest recommendation depends on how many prompts a team tracks, how often results must refresh, and whether the output has to feed production or only a slide.
The short answer
Semrush AI Visibility Toolkit is the stronger choice for a compact, controlled prompt program monitored on a daily cadence. Ahrefs Brand Radar is the stronger choice for broad modeled discovery, competitor share of voice and cited-source mapping across a much wider question universe.
For most buyers the Ahrefs Brand Radar vs Semrush decision is settled by the suite already in the stack, because neither module is worth switching suites to obtain. After that, four questions settle it: how many prompts the program needs, which AI surfaces matter, how quickly results must refresh, and whether the team needs measurement alone or measurement wired into content production.
Semrush AI Visibility vs Ahrefs Brand Radar at a glance
| Decision axis | Semrush AI Visibility Toolkit | Ahrefs Brand Radar |
|---|---|---|
| Primary model | Connected reports built on a tracked prompt set: Prompt Tracking, Brand Performance, Competitor Research, Prompt Research, AI Search Health | An AI Visibility Index modeled from a search-backed prompt corpus, plus saved reports and custom prompts as a controlled layer |
| Prompt discovery | Prompt Research, described as a database of more than 317 million AI queries with topic volume and difficulty | Automatic brand and competitor discovery from a website, on top of a corpus built from keyword data, People Also Ask and fanout expansion |
| Controlled prompt allowance | 25 tracked prompts in the documented base materials, with 50 more at $60 per month | Measured in checks, where one check is one prompt, one assistant and one location; plan allowances run from 150 to 600 checks per month |
| Refresh cadence | Prompt Tracking documented as daily; reports schedulable daily, weekly or monthly | Custom prompts monthly, weekly or daily; core chatbot question sets generally monthly with a 90-day reporting window |
| AI surfaces | Report-specific. Brand Performance documents five, Prompt Tracking documents three, Prompt Research documents four | Help documentation lists AI Overviews and AI Mode, ChatGPT, Perplexity, Gemini, Copilot, Grok and Claude, with caveats on several |
| Source analysis | Sources and Pages views for cited domains and URLs, tied back to tracked prompts | Cited domains and cited pages as core index views, grouped into Yours, Competitors and Other |
| Technical readiness | Site Audit AI Search Health checks crawler access, structured data and llms.txt | No equivalent AI crawler readiness audit in the Brand Radar materials reviewed |
| Documented entry price | $99 per month per domain, billed annually, for the AI Visibility base offer | $199 per month for a single index and $699 per month for all platforms in the help article, plus custom-prompt packages from $50 |
| Best fit | A Semrush customer running a defined prompt program with scheduled reporting | An Ahrefs customer mapping a market before a prompt taxonomy exists |
Two definitions of better tracking
An Ahrefs Brand Radar comparison goes wrong when both products are scored against one idea of tracking. There are two, and they are not interchangeable.
Controlled tracking means the marketer writes the exact questions, picks the engines, and watches that fixed set on a chosen cadence. This is the model that suits a team that already knows what its buyers ask and wants an operational dashboard that moves week to week.
Modeled discovery means the product builds or expands a large question universe from search-backed data and reports the visibility landscape across it. This is the model that suits a team that has not yet decided which questions matter and needs a map before it can pick a route.
Semrush leans toward the first model, with Prompt Research supplying a discovery layer beside it. Ahrefs leans toward the second, with custom prompts bolted on as a controlled layer. A buyer who wants one and evaluates the other will conclude the product is weak when it is simply built for a different job.
The vocabulary matters here too. A mention is the brand being named in an answer. A citation is a source link associated with that answer, and the two do not always travel together: a brand can be named without its page being cited, and a page can be cited without the brand being named. Share of voice is a comparative visibility measure, not a traffic figure. Average position describes where an appearance falls inside a tracked answer set, not a rank in Google. Every number in both products is a modeled or report-specific measure, which is why neither should be presented to leadership as an audience count.
Semrush AI Visibility Toolkit

Semrush presents AI visibility as several connected reports rather than one score. Prompt Tracking is the operational core. The documented setup runs from opening AI Visibility, creating a tracking campaign, selecting the available search engine plus location and language where those controls exist, adding prompts manually or from a TXT or CSV file or from suggestions, and then reviewing recurring results. It reports AI Visibility, mentions, owned sources, topic volume and average position, and its documentation describes daily collection.
Brand Performance is the wider brand-level view. It documents reporting across Google AI Overviews, Google AI Mode, ChatGPT, Perplexity and Gemini, along with share of voice expressed as a percentage of mentions relative to competitors, sentiment, narrative drivers connecting recurring themes to cited pages, and the questions associated with the brand's visibility.
Competitor Research is where the Toolkit is most distinctive. It surfaces topic and prompt gaps, meaning the exact topics and prompts for which competitors are cited and the tracked brand is not, plus source opportunities where a site cites a rival but not the target, followed by strategic recommendations. Prompt Research adds a demand layer, described as more than 317 million AI queries across Google AI Overviews, Google AI Mode, Gemini and ChatGPT, refreshed daily on a rolling basis, with estimated topic volume and a topic difficulty score on a 0 to 100 scale.
Site Audit contributes AI Search Health checks: whether relevant AI crawlers can reach the site, structured data, llms.txt and technical blockers. The documented crawler list includes ChatGPT-User, OAI-SearchBot, Googlebot, Google-Extended, Perplexity-User, PerplexityBot, Claude-User and Claude-SearchBot. For a marketing lead staring at a low citation count, this is the fastest way to rule out an access problem before rewriting anything.
Where the Toolkit binds
The base allowance is 25 tracked prompts. Documented base usage also includes 300 AI Analysis reports per day, 1,000 Prompt Research queries per day, AI Search Checks for up to 100 pages and 10 CSV exports per day. Twenty-five prompts is enough for a first program covering one persona and one market. It is not enough for several personas, funnel stages and regions at once, and the documented expansion is 50 additional prompts at $60 per month.
Platform coverage is report-specific, which is the detail most comparisons flatten. Prompt Tracking documents ChatGPT Search, Google AI Mode and Gemini. Brand Performance documents five surfaces. Prompt Research documents four. Prompt Tracking's own documentation says estimated traffic and share of voice are not available for AI search engines inside that report, even though Brand Performance carries its own share of voice view. Any statement about how many platforms Semrush covers has to name the report or it is wrong somewhere.
Two smaller unknowns are worth a note. Semrush materials disagree on whether competitor gap analysis handles three rivals or four, with the dedicated gap workflow describing three. The reviewed public pages also do not establish a complete standalone AI Visibility API, though enterprise materials mention custom integrations and an API. Neither gap is disqualifying. Both are worth confirming against a live account rather than a marketing page.
Ahrefs Brand Radar

Brand Radar starts from the opposite end. A user enters a website or brand, the system identifies that brand and its associated competitors, and a report appears before anyone has written a single prompt. From there the workflow is filtering, sorting by relevance or search volume, saving the report, and only then adding custom prompts with chosen platforms, locations and refresh frequency.
That no-setup discovery is a genuine advantage for a team without a prompt taxonomy. The reports cover AI visibility and competitor share of voice, mentions, citations and estimated impressions, AI responses, cited domains and cited pages, topics, and Yours, Competitors and Other source groupings. An April 2026 update folded the separate cited domains report into an All domains tab beside those groupings and moved URL filters into the top filter bar. Brand Radar also reports search demand, web visibility, YouTube, Reddit and TikTok visibility, which makes it broader than its AI answer index without making that index deeper.
The published methodology is the most useful thing Ahrefs gives a buyer. It describes modeling real-world AI behavior from People Also Ask and a 110-billion-keyword database, of which 28.7 billion keywords carry positive search volume, expanded through fanout and prioritized toward common, high-demand and recurring topics. It describes executing those questions in supported AI interfaces, storing raw responses, and extracting cited URLs and mentions without normalizing, personalizing, preprompting or rewriting the response first. Very few visibility products publish that much of their own construction.
The methodology is also candid about its limits, and those limits are the part a marketing lead should read twice. Estimated impressions are weighted using Google search volume, and the documentation states that the relationship between Google search volume and AI usage has not been validated. Long-tail and highly niche questions may be omitted from the corpus. Malformed or hallucinated links are not necessarily filtered out, so a cited-page list deserves review before anyone treats every URL as a verified target.
Where Brand Radar binds
Ahrefs lists more AI surfaces than any single Semrush report, and the operational caveats are material. A changelog dated 15 August 2026 added a Google AI Mode index initially covering the United States, the United Kingdom and India, with historical coverage described as four months for ChatGPT and Perplexity and two months for Gemini and Copilot. Grok's status is contradictory across official materials, with a help article saying it is temporarily unable to gather new data after policy changes while an earlier product update announced its availability. Claude is available for custom prompts only, and each Claude check consumes eight checks.
That last detail explains the pricing model. A check is one prompt multiplied by one assistant and one location, so one prompt run against three assistants in two locations consumes six checks per run, and a daily schedule consumes that every day. Existing plans include 150 checks per month on Lite, 300 on Standard and 600 on Advanced. Custom-prompt packages are documented at $50 for 2,500 checks, $100 for 7,000 and $250 for 25,000, with overage priced at $0.020, $0.015 and $0.010 per check. A nominal prompt count therefore understates the budget, sometimes by a wide margin.
The core chatbot question sets refresh monthly against a 90-day reporting window. For trend and market work that is fine. For a team that wants to know whether a rival appeared in a named prompt this week, it is not, and closing that gap means buying and configuring custom checks rather than relying on the index.
One more caution belongs in any Ahrefs Brand Radar comparison. Official pages present the corpus size as 405 million-plus, 473 million and 475 million-plus prompts in different places. Those are snapshots taken at different dates, not a stable figure, and none of them should be quoted as a precise competitive statistic.
Prompt control, cadence and cost in practice
The Ahrefs Brand Radar vs Semrush question is usually settled on this axis rather than on feature counts.
Semrush leads for a compact controlled list. The workflow is add the prompts, collect daily, read the report. The 25-prompt base is a real constraint, but it is a legible one, and a team can plan around a number it can see. The advertised base price is $99 per month per domain, billed annually, with costs rising through extra prompts, extra domains, additional users and reporting add-ons. The Base Report add-on is documented at $10 per month for scheduling, PDF export and sharing, and the Pro Report add-on at $20 per month for wider integrations, white-labeling and AI-generated summaries.
Ahrefs leads for breadth, and its cost is harder to forecast. The help article documents $199 per month for a single AI index and $699 per month for all platforms, the latter including 2,500 checks per month. Other Ahrefs surfaces show different packaging labels and different tracked-prompt figures, so the live workspace quote should govern any budget, not a landing page. For a team with 10 to 25 priority prompts and a preference for daily checks, Semrush is materially easier to budget. For a team that values the modeled index enough to justify the index price and treats custom prompts as a targeted supplement, Ahrefs carries its cost.
There is a commercial detail on the Semrush side that deserves the same caution. The dedicated AI pricing page advertises a seven-day free trial while the Toolkit help article says the AI Visibility Toolkit itself does not currently offer one. The checkout flow on the buyer's own account is what settles that, not the marketing page.
Competitor and cited-source analysis
Both products answer the question of which pages AI engines cite, and they answer it from different directions.
Semrush frames it as a gap to close. Competitor Research names the exact topics, prompts and sources where rivals are cited and the tracked brand is not, then attaches recommendations. Prompt Tracking can expose the exact source pages cited in a tracked answer, which keeps the analysis tied to a question someone actually chose to monitor.
Ahrefs frames it as a landscape to map. Cited domains and cited pages are core index views rather than a downstream report, and share of voice, mentions, citations and impressions are compared across a corpus far larger than any hand-built prompt set. For a brand entering a category it has not measured before, that map is worth more than a gap list.
Neither report establishes causation. A cited page is evidence that an engine used that page for a question at a point in time, not proof that a specific content change produced the citation. Both products should be read as directional visibility systems.
Where both incumbent AEO features stop
Semrush AI Visibility Toolkit and Ahrefs Brand Radar are measurement products. They tell a marketing lead which prompts are lost, which competitor pages are winning and which sources the engines trust. What happens next is the same work it has always been: a brief, a writer, an editing cycle, internal linking, a cover image, a publish step. The gap list gets longer than the publishing calendar, and the module that produced it has no view of that.
DeepSmith is built for the other half of that loop, and it is not an add-on to either suite. It is a separate platform that runs AI search analytics and content production off one shared set of brand context.

Its AI Visibility module tracks mention rate, citation rate, share of voice, sentiment and visibility trend, with per-prompt mention and citation rates, full answer history, page-level citation attribution, each page's share of total citations, the prompts driving them, and competitor citations broken out by exact page and platform. Discover Prompts generates a starter set from stored product, persona and buyer-stage context rather than asking a marketer to invent the list.

The difference is what the data is wired into. Content Map crawls the brand's site and unlimited competitor sites into one shared topic and funnel taxonomy, rechecks sitemaps every 24 hours, and reports coverage gaps and untapped topics. Opportunity Agents read that data and return ideas with the specific data point that justifies each one attached, over a 30, 90 or 180-day window, so a backlog can be defended rather than argued. Content Studio moves an idea through New Ideas, Planned Content, the Writer and Produced Content, and the Writer returns a researched, internally and externally linked article with a cover image and publish-ready metadata. Autowrite generates scheduled articles with no one in the app. Deep IQ stores positioning, product facts, personas, brand voice, visual guidelines and content types so production does not depend on re-briefing.

DeepSmith runs $99 per month for Pro, $199 for Grow and $399 for Scale, or $80, $160 and $299 per month billed annually, with a seven-day free trial and no long-term contracts. Engine coverage is tiered: Pro tracks ChatGPT, Grow adds Perplexity, Scale adds Gemini, and all ten named engines require Enterprise or Custom. A team that specifically needs every engine on one plan has to budget for that tier. A team whose buyers concentrate in ChatGPT, where most AI-assisted product research starts, gets the full measurement-to-production loop at the same $99 entry point Semrush charges for measurement alone.
The honest boundary: a reader who only wants a visibility report and already pays for a suite should use the suite's module. The case for DeepSmith is for the team whose bottleneck is not seeing the gap but closing it.
Which should you choose
Already paying for Semrush, with 10 to 25 priority prompts and a need for daily checks. Start with Semrush AI Visibility Toolkit. The exact-prompt daily workflow is the clearest documented one on either side, and the base price is lower. Plan around the 25-prompt cap and confirm which engines the specific report covers.
Already paying for Ahrefs, without a prompt taxonomy yet. Start with Brand Radar. Automatic discovery and a search-backed corpus remove weeks of setup. Expect modeled coverage, monthly chatbot refreshes and possible gaps on niche questions.
Needing competitor cited-page analysis across a broad market. Ahrefs is the stronger first fit, with cited domains, cited pages and share of voice as core views. Read impressions as modeled figures and confirm which engines are live in the account.
Needing a small controlled program with scheduled leadership reporting. Semrush is the stronger first fit. Daily Prompt Tracking plus CSV, Excel, Google Sheets, PDF and scheduled delivery is operationally clean, inside the documented daily caps.
Needing AI crawler readiness in the same evaluation. Semrush has the documented advantage through AI Search Health. This checks access, not visibility, so it belongs alongside the tracking decision rather than inside it.
Needing findings to become published content. Evaluate DeepSmith beside the incumbent module. Measurement, evidence-backed ideas, brand context and publish-ready production sit in one workflow, with engine coverage set by plan.
Teams in the last group can see their own data before committing. Start a DeepSmith free trial and get real tracking data and real drafts before paying.



