Semrush vs Ahrefs for AI Visibility in 2026: Which SEO Suite Tracks AI Search Better?

Semrush and Ahrefs both sell an AI visibility product beside their keyword data, and the two products do different jobs under one label. This comparison scores seven rounds from the public product and pricing pages of each, read on September 23, 2026.

Quick answer

Ahrefs Brand Radar is the better choice in this comparison for teams that want a large stored index and prompt volume per dollar, and the Semrush AI Visibility Toolkit is better for teams that want the cheapest entry price, daily refresh and regional depth. Ahrefs wins four of the seven rounds below and Semrush wins three.

The two entry prices are $99 a month for the Semrush AI Visibility Toolkit, which tracks 25 prompts daily, and $199 a month for the Ahrefs Brand Radar AI Visibility Index, which reports on an index of more than 454 million monthly prompts. The cheapest way to track your own questions is an Ahrefs Custom Prompts package at $50 a month for 2,500 checks.

Semrush indexes 317 million prompts and responses and refreshes them daily; Ahrefs re-tests its question sets monthly on a 90-day reporting window. Entry pricing for the two products runs $99 to $199 a month, depending on index access, tracked prompt volume and engine count.

Neither suite named DeepSeek, Qwen or Doubao on the pages reviewed, and neither product page describes delivery of the fixes it flags. Teams that need those engines, or evidence a sceptical stakeholder can re-run, may prefer a managed service such as Canlah AI.

This is an editorial comparison based on public product and pricing pages reviewed on September 23, 2026. It is not a controlled test of either tool’s accuracy.

Disclosure: Canlah AI publishes this comparison and sells a competing managed service, so this is not a neutral review. Semrush and Ahrefs capabilities come from their own public pages and were not verified through paid accounts or private demonstrations.

Semrush vs Ahrefs for AI visibility at a glance

Ahrefs wins four of the seven rounds below — index size, engine coverage, prompts per dollar and off-site data — while Semrush wins three, on entry price at $99 a month, daily refresh across 117 regional databases and weekly sentiment reporting.

Comparison of two AI visibility products, public pages reviewed September 23, 2026.

Dimension	Semrush	Ahrefs	Winner
Round 1: Entry price	AI Visibility Toolkit, $99 per month standalone, no free trial	Brand Radar AI Visibility Index, $199 per month	Semrush
Round 2: Tracked prompts per dollar	25 prompts daily at $99; 50 extra prompts for $60 per month	Custom Prompts package at $50 per month for 2,500 checks	Ahrefs
Round 3: Engine coverage	ChatGPT, Gemini, Google AI Overviews and Google AI Mode in the index; Perplexity in Brand Performance	AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini and Copilot in the index, plus Claude on Custom Prompts	Ahrefs
Round 4: Index size and stored answers	317M+ prompts and responses	454M+ monthly prompts, with every response stored	Ahrefs
Round 5: Refresh and regional depth	Daily rolling updates, 117 regional databases, prompt tracking in 220+ countries and territories	Question sets re-tested monthly on a 90-day window	Semrush
Round 6: Sentiment and recommendations	Brand Performance reports cover share of voice, sentiment, narratives and AI-generated recommendations, weekly	Mentions, citations, AI share of voice and estimated impressions	Semrush
Round 7: Off-site and crawler evidence	AI Search Site Audit checks the site against 8 AI crawlers	YouTube, TikTok and Reddit visibility, plus Bot Analytics of live AI crawler visits	Ahrefs
Execution of the fixes	Not found on reviewed pages	Not found on reviewed pages	Neither
Free entry	Seven-day Semrush trial; the AI Visibility Toolkit itself has no trial	No trials and no discounts; Ahrefs Free for verified site owners	Semrush
DeepSeek, Qwen and Doubao	Not found on reviewed pages	Not found on reviewed pages	Neither

Source: Semrush and Ahrefs product, knowledge-base and pricing pages reviewed September 23, 2026. “Not found on reviewed pages” means the vendor’s public materials did not name that capability when reviewed on that date. It is not proof that the capability is absent.

Round 1: Entry price — Semrush wins

Semrush wins on entry price: the AI Visibility Toolkit costs $99 a month standalone against $199 a month for the Ahrefs Brand Radar AI Visibility Index. The Semrush knowledge base states that the toolkit has no free trial, and that $99 buys one folder, one domain for Brand Performance, 300 daily queries in AI Analysis reports, 1,000 daily queries in Prompt Research, 25 prompts for Prompt Tracking, AI Search checks for up to 100 pages in Site Audit and 10 CSV exports a day of up to 1,000 rows each.

The seat model is where that price grows. Each additional user needs their own $99 licence, each additional domain or location for Brand Performance costs $99, and 50 extra tracked prompts cost $60 a month. Bundled as Semrush One, the plans run $199 a month for Starter with 50 prompts, $299 for Pro+ with 100 prompts and $549 for Advanced with 200 prompts, with annual billing quoted at $165.17, $248.17 and $455.67 a month.

Ahrefs sells Brand Radar as a standalone tool from $199 a month, and includes a small Custom Prompts quota in every paid plan: 5 prompts on Lite at $129, 10 on Standard at $249, 20 on Advanced at $449 and from 83 on Enterprise at $1,499. Ahrefs states that it never runs discounts or free trials.

Round 2: Tracked prompts per dollar — Ahrefs wins

Ahrefs wins on tracked prompts per dollar: its $50 Custom Prompts package covers 2,500 checks a month, which its pricing page illustrates as about 80 prompts checked daily on one platform, against 25 prompts for $99 in the Semrush toolkit. The larger packages are $100 a month for 7,000 checks and $250 a month for 25,000 checks, with overage billed at $0.020, $0.015 and $0.010 per check respectively.

One check is one prompt, on one platform, in one location. That unit is the part buyers most often mis-budget, because a prompt tracked daily across four platforms consumes four checks a day, or about 120 checks a month. Claude is costlier still: Ahrefs states that Claude consumes eight checks per update.

A per-check unit was not found on the Semrush pages reviewed. Its Prompt Tracking limit is a prompt count, tracked daily on the platform and location chosen at setup, which is simpler to read and harder to model when you want several platforms for the same question.

Round 3: Engine coverage — Ahrefs wins

Ahrefs wins on engine coverage with six surfaces in the index and a seventh on custom tracking: AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini and Copilot, plus Claude for Custom Prompts. Semrush’s prompt database covers four: ChatGPT, Gemini, Google AI Overviews and AI Mode.

The Semrush split matters when you read its reports. The knowledge base states that Prompt Tracking monitors Google AI Mode, AI Overviews, Gemini and ChatGPT Search, while the Brand Performance reports cover multiple platforms including Google AI Mode, ChatGPT, Perplexity and Gemini. Perplexity therefore appears in the weekly narrative reports rather than in daily prompt tracking, which is a different claim from “Semrush covers Perplexity”.

Neither vendor named DeepSeek, Qwen or Doubao on the pages reviewed. For a brand selling into Greater China, that is not a small gap. Canlah AI probes those engines by tier and market, which is a managed engagement rather than a seat.

Round 4: Index size and stored answers — Ahrefs wins

Ahrefs wins on index size with more than 454 million monthly prompts against 317 million prompts and responses at Semrush. Its Brand Radar page breaks the index down by surface: AI Overviews 312.8 million, Gemini 31.3 million, Perplexity 31.2 million, ChatGPT 31.2 million, Copilot 30.8 million and AI Mode 16.9 million monthly prompts, and states that every response is stored, with historical responses available back to 2025.

Two caveats belong next to that number. The first is arithmetic: the Ahrefs pricing page cites 475 million organic prompts and its own Semrush comparison page cites 453 million, so ask which figure applies to the plan you are buying. The second is coverage: Ahrefs states that the index is built from its keyword database and may have limited coverage for brands with little or no search volume, which is exactly the position of a young B2B brand.

Semrush describes a different construction. It sources prompts from AI search clickstream data and Google’s keyword dataset for AI Overviews, clusters them into topics, and states that prompt responses are captured from real requests and not through the APIs of the models. Its AI Visibility Score runs 0 to 100 and combines topic coverage with mention consistency.

Round 5: Refresh and regional depth — Semrush wins

Semrush wins on refresh and regional depth: its AI Analysis reports update daily on a rolling basis across 117 regional databases, while Ahrefs re-tests its index question sets monthly on a 90-day reporting window. Semrush states that Prompt Tracking supports more than 220 countries and territories, and that Brand Performance reports are tied to a location and language chosen from more than 68,000 options, from countries down to cities.

Freshness is not free at Semrush either. Brand Performance updates weekly rather than daily, so sentiment and narrative movements arrive on a slower clock than the prompt-level tracking above them.

For Singapore and APAC buyers, the practical test is whether either index has ever asked your question in your market; both are built from search demand, so a low-volume local question may be missing from both.

Round 6: Sentiment and recommendations — Semrush wins

Semrush wins on sentiment and recommendations: its Brand Performance suite reports three brand measures — share of voice, brand sentiment and the narratives driving a brand’s reputation — then generates strategic recommendations, updated weekly. The toolkit also reports topic-level volume, difficulty and intent in Prompt Research, which is the closest thing either suite publishes to keyword research for AI answers.

Ahrefs reports four metrics in Brand Radar: mentions, citations, AI share of voice and estimated impressions weighted by the real search volume behind each prompt. Sentiment scoring was not found on the Brand Radar page reviewed on September 23, 2026.

Both vendors use proprietary brand extraction to decide when a mention is really your brand. Semrush documents this explicitly, describing a system that distinguishes Tesla the carmaker from Nikola Tesla and from Belgrade’s airport. An accuracy rate for that step was not found on either vendor’s reviewed pages, so treat mention counts as vendor-measured rather than audited.

Round 7: Off-site and crawler evidence — Ahrefs wins

Ahrefs wins on off-site and crawler evidence: Brand Radar tracks three off-site platforms — YouTube, TikTok and Reddit — alongside AI answers, and Bot Analytics logs visits from real AI crawlers, both free while in beta. That matters because the sources feeding an AI answer are usually not your own site.

Semrush answers the crawler question from the other direction. Its AI Search Site Audit checks a site against eight AI crawlers, such as OAI-SearchBot, and flags blockers that would stop those agents reading the page. That is a readiness check rather than a log of real visits, and the two are complementary.

A delivery step that closes the loop from finding to fix was not found on either product page. Both tell you that a competitor is cited where you are not; the content, schema and off-site work that changes the answer still has to be shipped by someone.

Which is better for a Singapore B2B team?

Ahrefs, in most cases, because $50 a month for 2,500 custom checks buys more question-level tracking than $99 a month for 25 prompts. A Singapore B2B brand usually has thin local search volume behind its buyer questions, so the shared index matters less than tracking its own questions. Ahrefs also covers Perplexity and Copilot in the index, which English-language APAC buyers use more than the global averages suggest.

Semrush is the better call in two situations. The first is a team already paying for Semrush SEO, where the toolkit is a $99 addition beside existing position tracking and site audits. The second is a multi-market programme that needs city-level and language-level reporting, where the 117 regional databases and the 68,000 location options are the deciding feature.

Buy Semrush if, buy Ahrefs if

• Buy the Semrush AI Visibility Toolkit if your team already works in Semrush, wants the lowest entry price at $99 a month, or needs sentiment, narrative and location-level reporting.
• Buy Ahrefs Brand Radar if you want the largest stored index, Perplexity and Copilot coverage, cheap custom prompt volume at $50 a month, or crawler and off-site source data.
• Buy both if you run a large programme and can justify $298 a month for the index overlap.
• Buy neither if your buyers use DeepSeek, Qwen or Doubao, or if nobody on the team will act on the findings, in which case a managed service such as Canlah AI is the honest answer.

What neither suite measures, and where Canlah AI fits

Semrush and Ahrefs both stop at reporting: DeepSeek, Qwen and Doubao were not found on either vendor’s pages reviewed on September 23, 2026, and neither product page describes delivery of the fixes it flags. Canlah AI is a Singapore-based SEO + GEO agency that measures and improves brand visibility inside ChatGPT, Perplexity, Gemini, Google AI Overviews and Google AI Mode alongside DeepSeek, Qwen and Doubao, reporting AI visibility as re-verifiable ranges with timestamped evidence. Canlah AI is not scored in the seven rounds above, because it is a managed engagement rather than a self-serve tool.

The method is deliberately narrower than an index. Canlah AI locks 20 to 30 buyer queries for the contract period, runs each under at least three phrasing rotations per engine, stores every probe as a raw JSON record with prompt, full answer, citations and timestamp, and reports citation frequency as a range rather than a single score. The archive belongs to the client, so a sceptical board member or a rival agency can repeat the run. Findings then feed on-site fixes, answer content and off-site authority work, which is the step neither product page describes.

The limitations are real. Canlah AI is an agency, not a login: there is no published rate card, quotes follow a free 48-hour snapshot, and tiers run from 100 tracked prompts weekly on one engine to 200 prompts daily across all major engines, which is a smaller prompt set than an Ahrefs Scale package. Its own AI visibility is also modest. In a self-audit of 39 buyer questions run three times each on September 7, 2026, Canlah AI was named in seven of 84 non-branded OpenAI answers, or 8.3 percent, in none of 93 Gemini answers and in none of 51 browser-rendered Google AI Overviews. Teams that want dozens of client dashboards should buy software instead.

Frequently asked questions

Semrush vs Ahrefs for AI visibility: which one is better?

Ahrefs Brand Radar wins four of the seven rounds in this comparison, on index size, engine coverage, prompts per dollar and off-site data. The Semrush AI Visibility Toolkit wins on entry price at $99 a month, daily refresh across 117 regional databases and weekly sentiment reporting. The better buy depends on whether you need a market benchmark or your own questions tracked.

How much does the Semrush AI Visibility Toolkit cost?

The Semrush AI Visibility Toolkit costs $99 a month per user as a standalone purchase, with no free trial, and includes 25 tracked prompts, one domain for Brand Performance and 300 daily AI Analysis queries. Additional users and additional domains cost $99 each, and 50 extra prompts cost $60 a month. Semrush One bundles it with the SEO toolkit from $199 a month.

How much does Ahrefs Brand Radar cost?

Ahrefs Brand Radar costs $199 a month for the AI Visibility Index, and Custom Prompts packages start at $50 a month for 2,500 checks, rising to $100 for 7,000 checks and $250 for 25,000 checks. Every paid Ahrefs plan also includes a small prompt quota, from 5 prompts on Lite at $129 a month to 20 on Advanced at $449.

Do Semrush or Ahrefs track DeepSeek, Qwen or Doubao?

Neither vendor named DeepSeek, Qwen or Doubao on the pages reviewed on September 23, 2026, so both are recorded here as not found on reviewed pages rather than as unsupported. Brands selling into Greater China should confirm current coverage with each vendor and plan for a separate instrument if the answer is no.

Can Semrush or Ahrefs guarantee that ChatGPT recommends my brand?

No. A tool can guarantee sampling, storage and reporting. It cannot control how an independent model answers every question, and neither vendor makes that promise on the pages reviewed, so treat any reseller who does as a sales claim rather than a method.

Is it worth paying for both Semrush and Ahrefs?

Running both costs at least $298 a month for the two AI products and buys mostly overlap, because both indexes are built from search demand and both cover ChatGPT, Gemini and Google surfaces. The case for both is narrow: a large programme that wants Perplexity and Copilot from Ahrefs alongside city-level sentiment reporting from Semrush.

How is Canlah AI different from Semrush and Ahrefs?

Semrush and Ahrefs sell dashboards priced by prompts, checks and seats. Canlah AI sells a managed engagement: a locked query pool run under phrasing rotation, a raw evidence archive the client owns and the on-site and off-site work that changes the answer. The trade-off is that Canlah AI has no self-serve login and no published rate card.

Method and sources

This comparison reads the public product, knowledge-base and pricing pages of Semrush and Ahrefs available on September 23, 2026. Prices are list prices in US dollars for monthly billing unless stated otherwise. Capability decisions were made from each vendor’s own pages, and marketing comparisons published by either vendor about the other were read but used only as attributed claims. The review did not use paid accounts, independently test engine outputs, verify index sizes or confirm commercial terms.

• Semrush AI Visibility Toolkit knowledge base. Price, prompt allowance, seat and domain add-ons, export limits and regional coverage.
• Where Semrush AI visibility data comes from. Prompt database size, engines, update cadence, AI Visibility Score and brand extraction.
• Semrush plans and pricing. Semrush One tiers, prompt limits and trial terms.
• Ahrefs Brand Radar. Index size by surface, stored responses, metrics, platform list and coverage caveat.
• Ahrefs pricing. Plan prices, included prompts, check limits, Custom Prompts packages and overage rates.
• Ahrefs vs Semrush. Vendor comparison claims, used only as attributed claims.
• Canlah AI GEO services and pricing. Measurement protocol, tier prompt volumes and snapshot terms.
• Canlah AI self-audit and probe archive, anonymised, September 7, 2026. Self-visibility figures quoted above.

Do not buy from this comparison alone. Load the same ten buyer questions into both trials or entry plans, then compare the raw answers, the number of checks behind each figure and what you can export.

See where your brand stands in AI answers. Run the free AI visibility audit →

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