AI visibility tools · Head to head

Ahrefs vs Semrush: which AI visibility tool wins in 2026?

Two AI-visibility modules bolted onto legacy SEO suites, compared head to head. Engines tracked, the metrics each reports, pricing, and fit. Both vendors' pricing and plan pages were read in a rendered browser on 19 September 2026.

Javed Khatri Co-founder, Prefer
Updated September 2026 · Facts checked September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
On this page
TL;DR

Ahrefs Brand Radar is the pick if engine coverage matters most, tracking seven engines including Claude out of the box, with a large search-backed prompt corpus and backlink-index correlation; Semrush's AI Visibility Toolkit is the pick if you already run Semrush and want a lighter, cheaper per-domain add-on with a clear 0 to 100 AI Visibility Score, though it tracks fewer engines at its base and reserves the rest for a custom Enterprise product. Both are measurement-first; Prefer tracks five engines and also does the content work, from $24 a month.

Both are AI modules on top of mature SEO suites, so the real comparison is engine coverage and cost, not depth. Ahrefs tracks seven engines through Custom Prompts but includes only 5 to 20 prompts in its plans; more prompts cost extra (check packages from $50/mo), and its AI Visibility Index is $199/mo per platform or $699/mo for all. Semrush sells its AI Visibility toolkit at $99/mo per domain (25 prompts a day) or inside SEO + AI bundles from $199/mo (50 prompts a day), and its plan comparison lists five toolkit engines (ChatGPT, Google AI Overviews, Google AI Mode, Perplexity and Gemini), with Claude and Copilot on its custom Enterprise plan. Both checked 19 September 2026. Both are measurement-first.

Ahrefs vs Semrush at a glance
  • Ahrefs tracks seven engines through Custom Prompts (incl Claude); Semrush's plan comparison lists five for its toolkit, with Claude and Copilot on Enterprise.
  • Ahrefs sells extra prompts from $50/mo and its Index at $199/mo per platform; Semrush sells its toolkit at $99/mo per domain or bundled with SEO from $199/mo.
  • Semrush reports a clear AI Visibility Score (0 to 100), Share of Voice, Sentiment, and Top Cited Domains, plus an AI Search Site Audit.
  • Both are AI layers on legacy SEO suites and measurement-first; neither earns the citations for you.

The contenders

Screenshot not captured
Ahrefs Brand Radar AI module in the SEO suite
  • PositioningAI module inside the Ahrefs SEO suite
  • Starting price$129/mo plan (5 tracked prompts); Index $199/mo per platform ($699 all)
  • Free tierNo; free AI Visibility Checker tool
  • Engines tracked7 via Custom Prompts (Claude only there)
  • Prompt corpus455M+ monthly prompts (19 Sep 2026)
  • Acts on findingsNo; measurement only
  • FocusAdd AEO to an existing SEO workflow
Screenshot not captured
Semrush AI Visibility Toolkit in the SEO suite
  • PositioningAI toolkit inside the Semrush SEO suite
  • Starting price$99/mo per domain (AI toolkit, 25 prompts/day); SEO + AI from $199/mo
  • Free tierNo; 7-day trial
  • Engines (plan comparison)ChatGPT, AI Overviews, AI Mode, Perplexity, Gemini
  • Headline metricAI Visibility Score (0 to 100)
  • Acts on findingsRecommendations and export; content tools in suite
  • Also includesAI Search Site Audit, Top Cited Domains
  • FocusAdd AI visibility to an SEO suite
Capability Ahrefs Semrush Prefer
Tracks AI citations across engines
Acts on findings (Prefer off-page on Managed)
Done-for-you Managed service

The Prefer column is shown for reference: it is our product, and this page compares the other two. Website screenshots captured September 2026; Ahrefs and Semrush re-checked 19 Sep 2026; every claim is referenced in Sources.

Where each tool sits

Positioning matrix: Price to start (paid → free) (vertical) by Engine coverage (fewer → more) (horizontal). Ahrefs sits low on Price to start (paid → free) and high on Engine coverage (fewer → more); Semrush sits low on Price to start (paid → free) and low on Engine coverage (fewer → more); Prefer (our product) sits high on Price to start (paid → free) and high on Engine coverage (fewer → more).
Qualitative positioning from each product's public materials, checked September 2026. Ahrefs Brand Radar tracks the most engines but caps plan prompts at 5 to 20 and prices its Index at $199/mo per platform; Semrush sells its toolkit from $99/mo per domain with five engines; Prefer, our product, has a free audit and trial rather than a free plan, covers five engines including Gemini and both of Google's AI surfaces without per-engine add-ons, and adds off-page execution on its Managed and Enterprise plans. The x-axis runs fewer engines on the left to more on the right; the y-axis runs paid at the bottom to free at the top. Sources

Feature comparison

Capability
Ahrefs
Semrush
AI-search coverage
Engines tracked[1]
7 via Custom Prompts; Index 6 (no Claude)
5 in the toolkit (ChatGPT, AI Overviews, AI Mode, Perplexity, Gemini)
Real prompt tracking at entry[1]
5 to 20 tracked prompts (in $129 to $449 plans)
25/day in the $99/mo toolkit; 50/day in the $199/mo bundle
Serious prompt tracking[1]
Prompt packages from $50/mo (about 80 a day on 1 platform); Index $199/mo per platform
100 to 200 prompts/day (Pro+ $299, Advanced $549)
Prompt corpus[2]
455M+ monthly prompts (19 Sep 2026)
317M+ prompts and responses (KB, 19 Sep 2026)
Social surfaces[2]
YouTube, Reddit, TikTok
Not the focus
Metrics reported
Headline metric[2]
AI share of voice + estimated impressions
AI Visibility Score (0 to 100)
Mentions vs citations[2]
Both (mentions and citations)
Both (Mentions, Cited Pages, Citations)
Sentiment[2]
Not advertised
Yes
Citation analysis[2]
Citations + backlink-index correlation
Citations + Top Cited Domains
Site audit for AI[2]
SEO site audit (suite)
AI Search Site Audit
Pricing and fit
Entry to AI tracking[1]
5 prompts in the $129/mo plan; packages from $50/mo; Index $199/mo per platform
$99/mo per domain (toolkit); $199/mo bundled with SEO
Engines beyond the base[1]
Claude via Custom Prompts only (8 checks per update)
Copilot, Grok, Claude, DeepSeek on custom Enterprise
Acts on findings[2]
No; measurement only
No; measurement only
Best for[2]
Ahrefs users wanting the widest coverage
Semrush users wanting a light AI add-on

Based on both products' public pages, facts checked September 2026; Ahrefs and Semrush re-checked 19 Sep 2026. "Not advertised" means we could not verify the capability from public materials. Spot something out of date? Tell us.

Pricing, side by side

Plan
Ahrefs
Semrush
AI module entry[1]
Included in $129+/mo plans (5 to 20 prompts)
$99/mo toolkit, 25 prompts/day; $199/mo bundle, 50/day
Real AI tracking[1]
Prompt packages from $50/mo; Index $199/mo per platform ($699 all)
Bundled; 100+/day from Pro+ at $299/mo
Full engine coverage[1]
7 via Custom Prompts; Index covers 6 (no Claude)
Enterprise AI Optimization (adds Copilot, Grok, Claude, DeepSeek)
Free tier[1]
No; free AI Visibility Checker tool
No; 7-day trial
Execution included[2]
No; measurement only
No; measurement only

Prices checked September 2026; Ahrefs and Semrush re-checked 19 Sep 2026 from each product's public pricing page.

Ahrefs is a mature all-in-one SEO suite that added Brand Radar, an AI-visibility module tracking mentions, citations, AI share of voice, and estimated impressions across seven engines (Claude through Custom Prompts only) and correlating them with its backlink index; its plans start at $129/mo and include Brand Radar with 5 to 20 tracked prompts, more prompts come as check packages from $50/mo, and its AI Visibility Index, 455M+ monthly prompts across six engines, is $199/mo per platform or $699/mo for all (ahrefs.com, rendered 19 September 2026). Semrush is an established SEO suite whose AI Visibility Toolkit reports an AI Visibility Score (0 to 100), Share of Voice, Sentiment, Top Cited Domains, and an AI Search Site Audit (metric names verified from Semrush's knowledge base, September 2026); it sells the AI Visibility toolkit on its own at $99/mo per domain (25 prompts a day) and bundled as SEO + AI plans, Starter $199/mo (50 prompts tracked daily), Pro+ $299/mo (100 daily), and Advanced $549/mo (200 daily), about 17 percent cheaper billed annually; its plan comparison lists five toolkit engines (ChatGPT, Google AI Overviews, Google AI Mode, Perplexity, Gemini) and puts Copilot, Grok, Claude and DeepSeek on its custom Enterprise AI Optimization plan (semrush.com, rendered 19 September 2026). Sources

Which should you choose?

Choose Ahrefs if…

  • You already run Ahrefs and want the widest AI engine coverage
  • Tracking seven engines including Claude out of the box matters
  • You value a search-backed prompt corpus and backlink correlation
  • You can pay for prompts beyond the plan's 5 to 20, or the $199/mo-per-platform Index

Choose Semrush if…

  • You already run Semrush and want a lighter AI add-on
  • A single clear AI Visibility Score (0 to 100) suits your reporting
  • An AI Search Site Audit and sentiment tracking matter to you
  • You are comfortable that Claude and Copilot need Semrush's Enterprise plan
The third option · Our product
Two AI modules on legacy SEO suites. Neither does the off-page work.

Prefer tracks the same signals across ChatGPT, Gemini, Perplexity, Google AI Overviews and Google AI Mode, then produces the content and citations that move the number. Free trial, paid from $24/mo. See how it compares to Semrush.

Run your free audit No card, no commitment

Ahrefs vs Semrush, answered

Is Ahrefs or Semrush better for AI visibility?

It depends on what you already run and how much coverage you need: Ahrefs Brand Radar tracks seven engines including Claude out of the box, with a large search-backed prompt corpus and backlink-index correlation, while Semrush's AI Visibility Toolkit reports a clear AI Visibility Score (0 to 100), Share of Voice, Sentiment and Top Cited Domains but lists five engines to Ahrefs' seven. If you want tracking and the content work in one plan, Prefer does both from $24 a month. Choose Ahrefs for engine breadth, Semrush for a lighter add-on inside the suite you may already use.

How do Ahrefs and Semrush AI toolkit pricing compare?

Checked 19 September 2026: Ahrefs includes Brand Radar in its plans (from $129/mo) but caps tracked prompts at 5 to 20; more prompts are sold as check packages from $50/mo, and the AI Visibility Index is $199/mo per platform or $699/mo for all. Semrush sells its AI Visibility toolkit at $99/mo per domain (25 prompts a day) and bundles AI visibility into SEO + AI plans: Starter $199/mo with 50 prompts tracked daily, Pro+ $299/mo with 100, and Advanced $549/mo with 200, each about 17 percent cheaper billed annually. Prefer publishes $24 a month for five engines and 15 AI articles.

How many AI engines does each track?

Ahrefs Brand Radar tracks seven engines through Custom Prompts: Google AI Overviews, AI Mode, Gemini, Perplexity, ChatGPT, Copilot, and Claude; its AI Visibility Index covers the first six. Semrush's own plan comparison lists five engines for its AI Visibility toolkit (ChatGPT, Google AI Overviews, Google AI Mode, Perplexity and Gemini) and puts Copilot, Grok, Claude and DeepSeek on its custom Enterprise AI Optimization plan. Both checked 19 September 2026. Ahrefs tracks more engines without an enterprise contract.

What metrics does the Semrush AI Visibility Toolkit report?

From Semrush's own knowledge base (September 2026): an AI Visibility Score from 0 to 100, Mentions, Cited Pages, Citations, Share of Voice, Sentiment, and Top Cited Domains, plus an AI Search Site Audit. Ahrefs Brand Radar reports mentions, citations, AI share of voice, and estimated impressions, and correlates AI citations with its backlink index. Both are reporting layers; neither acts on the findings.

Do Ahrefs or Semrush win citations for you?

No. Both are AI-visibility modules bolted onto SEO suites, and both are measurement-first. They show where you are mentioned or cited and where the gaps are, but neither produces the content or earns the off-page citations that change the score. That execution stays with your team, or with Prefer, which writes the content from $24 a month; Prefer Managed and Prefer's Enterprise plan also earn the off-page citations.

Which should I choose if I already use one suite?

If you already run Ahrefs, Brand Radar adds the widest AI engine coverage to a tool you know. If you already run Semrush, its AI Visibility Toolkit adds a lighter AI layer with a single clear score and an AI Search Site Audit. The decision usually follows the suite you already pay for, unless engine coverage (Ahrefs) is the deciding factor.

What is the best alternative to Ahrefs and Semrush for AI visibility?

Prefer is the best pick if you want the measurement plus the off-page content and citation work rather than another report to act on alone: it covers five engines, including Gemini and both of Google's AI surfaces, without per-engine add-ons, writes content from $24 a month with a free audit, and adds the off-page work on Prefer Managed and Prefer's Enterprise plan. The category also includes Profound, Peec AI, Scrunch, AthenaHQ and Otterly. See our roundup of the best AI visibility tools.

References

Sources

  1. Ahrefs Brand Radar page ahrefs.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  2. Ahrefs pricing page ahrefs.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  3. Semrush AI Search + SEO pricing semrush.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  4. Semrush AI Visibility Toolkit (knowledge base) semrush.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  5. Semrush homepage semrush.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  6. Semrush AI Visibility toolkit pricing semrush.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  7. Semrush Enterprise plan comparison semrush.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026
  8. Semrush KB: where the AI Visibility Toolkit data comes from semrush.com Accessed September 2026; Ahrefs and Semrush re-checked 19 Sep 2026

Keep comparing

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