Buyers no longer start every search on Google. Instead, they ask ChatGPT, Gemini, and Perplexity for direct answers, and those answers name some brands while they ignore others. As a result, SEO teams now need to track how AI platforms talk about their brand, not only where their pages rank. The Semrush AI Visibility Toolkit vs Ahrefs Brand Radar debate sits at the center of this shift, because both products promise to measure that AI presence. However, they take very different approaches, and they charge very different prices. This guide compares their platforms, pricing, prompt data, and reporting, and it also shows how both tools fit into the wider market covered in our guide to the best GEO tools in 2026. By the end, you will know which tool matches your budget, your current SEO stack, and your reporting needs.
Why AI Visibility Tracking Matters Now
AI answers now shape buying decisions before a user ever clicks a search result. For example, when someone asks an assistant for the best project tool or a reliable local service, the assistant recommends a short list of brands. If your brand misses that list, your competitor wins the customer silently. Therefore, marketers treat AI mentions and citations as a new visibility metric, similar to rankings. Our comparison of Perplexity vs Claude shows how differently these engines answer the same question. Consequently, choosing the best AI visibility tool for SEO has become a real budget decision for 2026, and the two biggest SEO suites now compete directly for that budget.
The Semrush Toolkit: AI Tracking Inside a Full SEO Suite
Semrush built its toolkit as an add-on layer inside its existing SEO platform, and that design shapes everything about it. Firstly, the toolkit gives every brand an AI Visibility Score from 0 to 100, and it benchmarks that score against competitors in the same market. Secondly, its Brand Performance reports track mentions, citations, share of voice, and sentiment across ChatGPT, Google AI Mode, AI Overviews, Gemini, and Perplexity. Thirdly, its prompt research database holds more than 317 million prompts, so users can research AI questions almost like classic keyword research. The toolkit also includes a site audit that checks whether AI crawlers can read your pages properly. Semrush AI Visibility Toolkit pricing keeps the entry point simple: the standalone toolkit costs $99 per month for one domain, billed annually, and it includes 25 custom prompts tracked daily.
Meanwhile, teams that want the toolkit bundled with the full SEO suite can choose Semrush One, which starts at $199 per month. However, the base plan includes no free trial, and each extra domain costs another $99 per month.
Ahrefs Brand Radar: A Giant Prompt Index
Ahrefs took the opposite approach. Instead of starting with your own prompts, Brand Radar starts with a huge pre-collected index that you search instantly. According to Ahrefs, the Brand Radar database holds more than 493 million search-backed prompts built from real questions in its keyword database, not synthetic lists. As a result, you can look up any brand, including competitors you do not track yet, and see its mentions, citations, AI share of voice, and estimated impressions immediately. The index covers six platforms: Google AI Overviews, Google AI Mode, ChatGPT, Perplexity, Gemini, and Microsoft Copilot.
In addition, Ahrefs tracks Claude inside custom prompts. On the other hand, Brand Radar offers no dedicated sentiment score, so teams that care about tone need a second source. Ahrefs Brand Radar pricing also works differently: the AI Visibility Index costs $199 per month for one platform or $699 per month for all platforms, and custom prompt packages start at $50 per month. Crucially, Brand Radar sits on top of a normal Ahrefs subscription, and Ahrefs plans start at $129 per month.
Platforms Tracked: Ahrefs Brand Radar and Semrush Compared
Semrush reports brand performance across five AI surfaces, namely ChatGPT, Google AI Mode, AI Overviews, Gemini, and Perplexity. However, its daily prompt tracking focuses on ChatGPT and Google AI Mode, while the wider reports update weekly. In contrast, Brand Radar indexes six platforms and refreshes its AI Overviews data every few days, although its chatbot index updates monthly. Similarly, Brand Radar adds visibility data for YouTube and Reddit in beta, which Semrush does not currently match. Therefore, Ahrefs wins on raw platform breadth, while Semrush wins on daily tracking for the two surfaces many teams watch most closely.
| Feature | Semrush AI Visibility Toolkit | Ahrefs Brand Radar |
|---|---|---|
| Platforms tracked | ChatGPT, Google AI Mode, AI Overviews, Gemini, Perplexity | AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, Copilot, plus Claude in custom prompts |
| Starting price | $99 per month per domain, or Semrush One from $199 per month | $199 per month per platform index, or $699 per month for all platforms, plus an Ahrefs plan |
| Prompt tracking | 25 custom prompts tracked daily, extra prompts available | Custom prompts from $50 per month, small allowances included in Ahrefs plans |
| Prompt database | More than 317 million prompts for research | More than 493 million search-backed prompts, searchable instantly |
| Sentiment analysis | Yes, inside Brand Performance reports | No dedicated sentiment score |
| Best for | Semrush users who want AI tracking inside their SEO suite | Ahrefs users who want deep share of voice research |
Pricing Breakdown: What Ahrefs Brand Radar Really Costs
Sticker prices hide the real difference, because the two vendors bundle costs in opposite ways. Semrush charges per domain, so a company with one main brand pays $99 per month and starts tracking immediately. However, agencies pay another $99 for every extra domain, and they pay $60 more for each block of 50 extra prompts. The official Semrush pricing page confirms this per domain model. Ahrefs charges per platform instead.
Therefore, a team that wants only the ChatGPT index pays $199 per month, but a team that wants every platform pays $699 per month, and both prices sit on top of the base Ahrefs subscription. In addition, custom prompts start at $50 per month, although paid Ahrefs plans already include a small prompt allowance. As a result, Semrush usually costs less for a single brand, while Brand Radar pricing rewards teams that already pay for Ahrefs and mainly need one or two platform indexes.
Prompt Tracking and Data Depth
Both tools track custom prompts, but they feed those prompts from very different data engines. Semrush treats prompt research like keyword research, so users explore questions, check volumes, and then promote the best 25 into daily tracking. Consequently, the workflow feels familiar to anyone who already does SEO inside Semrush. Brand Radar instead lets users search its giant index first and discover questions they never thought to ask. On the other hand, the Ahrefs chatbot index refreshes monthly, so fast-moving questions belong in custom prompts rather than the index. Semrush updates brand performance weekly and prompt tracking daily, which suits teams that report every week.
Brand Radar vs Profound and Other Dedicated Tools
Some buyers also weigh Brand Radar vs Profound before they choose. Profound targets large enterprises with custom pricing and coverage across up to nine answer engines, and it sells agency plans per client workspace. In contrast, Brand Radar keeps pricing public and ties AI data directly to backlinks and keywords inside Ahrefs. Similarly, the Semrush toolkit appeals to buyers who want one login for SEO and AI reporting. Therefore, dedicated platforms usually win on depth, while the suite tools win on convenience and total cost.
Which Tool Fits Agencies and Teams?
For AI search tracking for agencies, workflow matters as much as data. Agencies juggle many client brands, and per domain pricing can grow quickly inside Semrush once the client list expands. However, Semrush centralizes reporting, and its dashboards plug AI visibility into the same reports clients already receive. Brand Radar suits research-heavy agencies better, because analysts can benchmark any prospect or competitor before the agency signs a contract. In addition, the index helps agencies spot share of voice gaps during pitches. On the other hand, the all-platforms price of $699 per month makes full Brand Radar coverage a serious line item for smaller firms.
Verdict: Semrush AI Visibility Toolkit vs Ahrefs Brand Radar
The right winner depends on the stack you already own. Choose the Semrush toolkit if your team lives in Semrush, manages one or two brands, and wants sentiment, a clear visibility score, and daily prompt tracking at the lowest entry price. Its $99 starting point makes it the easier first purchase. Choose Brand Radar if your team lives in Ahrefs and needs deep competitive research across six platforms. Its index delivers instant share of voice data for any brand, and no setup stands between you and the first insight. However, budget honestly, because full Brand Radar coverage plus an Ahrefs plan costs far more than the Semrush entry point.
Frequently Asked Questions
What is the main difference between the two tools?
Semrush sells a per domain toolkit with daily tracking for your own prompts, while Ahrefs sells access to a giant pre-collected prompt index. Therefore, Semrush focuses on monitoring, and Brand Radar focuses on research and benchmarking.
How much does Ahrefs Brand Radar cost?
Ahrefs Brand Radar pricing starts at $199 per month for one platform index, or $699 per month for all platforms. In addition, you need an active Ahrefs subscription, and custom prompt packages start at $50 per month.
What does the Semrush toolkit price include?
Semrush AI Visibility Toolkit pricing starts at $99 per month for one domain. The plan includes 25 custom prompts tracked daily, brand performance reports, competitor analysis, prompt research, and an AI site audit.
Which tool tracks more AI platforms?
Brand Radar covers six platforms in its index, including Microsoft Copilot, and it tracks Claude in custom prompts. In contrast, Semrush reports across five surfaces, so Ahrefs currently lists wider platform coverage.
Do both tools track Google AI Overviews?
Yes. Both products count among AI Overview tracking tools because both monitor Google AI Overviews and AI Mode. However, Ahrefs refreshes its AI Overviews index every few days, while Semrush folds AI Overviews into weekly brand reports.
Which is the best AI visibility tool for SEO beginners?
Beginners usually find Semrush easier, because its score, reports, and prompt research mirror classic SEO workflows. On the other hand, experienced Ahrefs users often prefer Brand Radar for its deeper index.
Can agencies report client results with these tools?
Yes. Both tools support AI search tracking for agencies, and both export data for client reports. However, Semrush charges per domain, while Ahrefs charges per platform, so agencies should model costs before they commit.
Does either tool measure brand sentiment?
Semrush includes sentiment inside its Brand Performance reports, so users see how positively AI answers describe their brand. Brand Radar does not offer a dedicated sentiment score, and it focuses on mentions, citations, and share of voice instead.
How do these tools compare with Profound?
The Brand Radar vs Profound choice comes down to model: Profound sells enterprise plans with custom pricing and wider engine coverage, while Brand Radar publishes prices and connects AI data to Ahrefs SEO metrics.
Conclusion
AI search now decides which brands buyers hear about first, and both products in this comparison measure that new reality well. The Semrush AI Visibility Toolkit vs Ahrefs Brand Radar choice finally depends on your existing suite, your budget shape, and whether you value daily monitoring or index research more. Start with the platform your team already uses, track a focused prompt set, and review the data monthly. As a result, your brand will stop guessing about AI answers and start managing them.
