An AI visibility tool shows whether AI names your brand, and who it names instead.
An AI visibility tool asks ChatGPT, Perplexity, Claude, Google AI Overviews and other engines the questions your buyers ask, records which brands each answer names and cites, and tracks that over time. Proofsource is one; below is what any of them should do and how the main ones compare.
2 free scans, today and tomorrow: 25 questions on 4 engines. No card.
What does an AI visibility tool do?
It replaces typing your category's questions into ChatGPT by hand. A tool asks each question on several engines, on a schedule, and turns the answers into figures you can track: how often you are named, who is named instead, which pages the engines rely on, and whether that is changing.
Three things it should give you
Mention rate
The share of answers to each question that name your brand, per engine.
Who is named instead
The competitors each engine recommends where it leaves you out.
Cited pages
The web pages each answer draws on, so you know which ones to win.
How does Proofsource measure it?
Proofsource is an AI visibility platform that shows which buyer questions name your brand in ChatGPT, Perplexity, Claude and Google AI Overviews, who gets named instead, and exactly what to fix. It asks the questions your buyers ask on ChatGPT, Perplexity, Claude and Google AI Overviews, reads every answer, and records which brands are named and which pages are cited.
- Mention rate per question and engine, so you can see exactly which phrasings leave you out.
- A 95% Wilson interval on every percentage, so a dip you see on Tuesday can be told apart from noise. See the glossary.
- Daily sampling on the paid plan; the trial runs 2 scans about a day apart.
- A gap list: each question where a competitor is named and you are not, the pages that won it, and a drafted fix held for your approval.
The full method is on the methodology page.
Which engines does Proofsource cover?
ChatGPT, Perplexity, Claude and Google AI Overviews, on every plan, with the same questions on each.
ChatGPT
Perplexity
Claude
Google AI OverviewsWhat should you look for in an AI visibility tool?
- The engines your buyers use. Check the named list, not a count.
- Your questions, not only a database. Prompt databases show the market; your own buyer questions show your pipeline.
- Statistics with the numbers. Answers vary run to run. Without an interval you cannot tell a real change from noise.
- A way to act. A score with no cited pages or fixes leaves the diagnosis to you.
- A trial on your own brand before you sign anything.
How do the leading tools compare?
Six criteria, the same for every tool. Each competitor fact links to the vendor's own page.
| Tool | Engines covered | Intervals and stats | Fixes and actions | Crawler checks | Price to start | Free trial |
|---|---|---|---|---|---|---|
| Proofsource | ChatGPT, Perplexity, Claude and Google AI Overviews on every plan; Grok and DeepSeek as paid add-ons. Gemini, Copilot and Google AI Mode are not tracked. | A 95% Wilson interval on every percentage; changes are flagged only when they clear it | Each gap names the pages the engine cited instead and comes with a draft held for your approval | Site audit checks whether AI crawlers get through and how much of each page they can read without JavaScript | Free trial; paid from $64 per brand per month (final price confirmed at launch), through sales | 2 free scans, today and tomorrow: 25 questions on 4 engines, no card |
| Profoundsource | Up to 9 on Enterprise: ChatGPT, Perplexity, Google AI Mode, Gemini, Microsoft Copilot, DeepSeek, Claude, Google AI Overviews, Exa Search | Not published | AI Marketer agent, Opportunities, reusable Agents and Profound Sheets | Agent Analytics: AI-sourced traffic and attribution through CDN integrations such as Cloudflare, Vercel and Akamai | Free trial, then Enterprise at a custom price through a demo | Free: 50 prompts run daily for 7 days on ChatGPT, Gemini and Google AI Overviews |
| Otterly.AIsource | ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot on every plan; Claude, Google AI Mode and Gemini as paid add-ons | Not published | Recommendations (3 a week on Lite) and GEO audits (1,000 a month on Lite) | Agent Analytics on Standard and above; a free AI crawler simulation tool | $29/mo Lite (15 prompts); Standard $189/mo (100); Premium $489/mo (400) | Free trial offered; length not stated on the pricing page |
| Peec AIsource | Choose 3 per plan from ChatGPT, Google AI Mode, Google AI Overviews, Microsoft Copilot, Gemini and Naver AI; Perplexity as an extra model; up to 13 models including Claude on Enterprise | Not published | Gap analysis, ranked recommended actions and agent actions | Crawlability audit of robots.txt across 40+ AI bots, plus crawl insights from CDN logs | $95/mo Starter (50 prompts, 3 models); Pro $245/mo (150); Advanced $495/mo (350) | Free trial offered; length not stated on the pricing page |
| Semrush AI Visibility Toolkitsource | ChatGPT and Google AI Mode are named in Semrush's knowledge base; the full list is not published there | Not published | AI-generated strategic recommendations | AI Search Health in Site Audit flags blockers for AI crawlers (up to 100 pages) | $99/mo per user (25 tracked prompts, 1 domain); 50 more prompts for $60/mo | No free trial, per Semrush's knowledge base |
| Ahrefs Brand Radarsource | Google AI Overviews, AI Mode, ChatGPT, Gemini, Perplexity and Copilot; Claude available on the AI Visibility Index | Not published | Finds the pages AI cites and mention opportunities | Not published | Brand Radar AI from $199/mo; custom prompt packages from $50/mo; Ahrefs plans from $129/mo include 5 to 20 tracked AI prompts | Not published |
The full comparison of eight tools, with what each does best, is in the best AI visibility tools.
- Profound pricing www.tryprofound.com/pricing
- Otterly.AI pricing otterly.ai/pricing
- Peec AI pricing peec.ai/pricing
- Semrush KB: AI Visibility Toolkit www.semrush.com/kb/1493-ai-toolkit
- Ahrefs pricing ahrefs.com/pricing
- Ahrefs Brand Radar ahrefs.com/brand-radar
Sources read on .
What buyers ask about AI visibility tools
What is the best AI visibility tool?
It depends on the job: Profound for the widest engine panel, Otterly.AI for the lowest entry price, Peec AI for choosing engines, Semrush or Ahrefs if you already use them, and Proofsource for intervals on every figure and drafted fixes. The comparison table links every fact to its source.
How much does an AI visibility tool cost?
Published entry prices for dedicated tools range from about the cost of a SaaS seat to several hundred dollars a month, and enterprise plans are quoted. Most price by the number of prompts tracked. See the table for each tool's current entry price and source.
How is AI visibility different from SEO rankings?
A search ranking is a position on a results page. AI visibility is whether an AI answer names you at all, and it varies between runs of the same question. It overlaps with SEO, since engines draw on web pages, but it has to be measured by sampling answers.
Can I check my AI visibility for free?
Yes. Proofsource's trial asks 25 questions on 4 engines in 2 scans with no card, and several other tools offer trials or one-off graders.
See your AI visibility on your own brand.
See which buyer questions name your brand, who gets named instead, and what to fix. 2 free scans, today and tomorrow: 25 questions on 4 engines. No card.
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