You can start monitoring your AI search visibility without spending anything. Loudmink's free scan checks all 5 major AI search engines (ChatGPT, Perplexity, Gemini, Claude, and Grok) and delivers a PDF report in 10 minutes. HubSpot AEO Grader scores your brand across ChatGPT, Perplexity, and Gemini for free. Ahrefs Brand Radar checks how often AI platforms mention and cite your brand with no signup. Amplitude AI Visibility tracks brand performance across ChatGPT and Google AI Overviews inside a free Amplitude account. Google Search Console now reports traffic from AI Overviews alongside your regular search data. This guide covers 11 genuinely free tools, what each one actually does, and where each one falls short.
Free tools are enough to diagnose your current AI visibility and identify the biggest gaps. Where they break down is ongoing monitoring, multi-engine tracking at scale, and content creation. But for anyone just getting started with AEO, these tools will show you where you stand.
Loudmink Free Scan
Loudmink offers a free AI visibility scan that checks whether your brand shows up across all 5 major AI search engines: ChatGPT, Gemini, Perplexity, Claude, and Grok. Enter your domain and receive a PDF report within 10 minutes showing where you appear, where you do not, and which competitors are being recommended instead. No credit card required.
What it does well: Full 5-engine coverage from a single scan, which no other free tool matches. The report includes competitor analysis, source classification (whether citations come from your own site or third-party sources), and specific gap identification. Because Loudmink also offers a full execution platform, the scan connects directly to actionable next steps if you choose to address the gaps.
What it's missing: The free scan is a one-time diagnostic. Ongoing monitoring, campaign reports, and content generation (articles, Reddit posts) require a paid plan starting at $99/month. However, as a baseline assessment of where you stand across all AI search engines, the free scan provides more engine coverage than most paid tools' entry tiers.
Who it's for: Any brand that wants to know whether AI search engines recommend them or their competitors. The 5-engine coverage makes it especially useful for teams that have not yet assessed their AI visibility and want a complete picture before deciding where to invest.
HubSpot AEO Grader
HubSpot AEO Grader is the most polished free AEO tool available as of April 2026. Enter your brand name, location, industry, and a short description of your product. The tool queries ChatGPT, Perplexity, and Gemini, then returns a scored report across five dimensions: sentiment, presence quality, brand recognition, share of voice, and market position. Your total score is out of 100.
What it does well: The report includes narrative theme analysis, source quality breakdown, and an exportable PDF. No credit card required, no usage limits, and no features locked behind a paid plan. It is a standalone diagnostic that works whether or not you use HubSpot for anything else.
What it's missing: HubSpot AEO Grader is a one-time snapshot, not a monitoring tool. You get a score at one point in time with no historical tracking, no alerts when your visibility changes, and no way to set up recurring checks. It also does not tell you which specific queries trigger your brand to appear or not appear.
Who it's for: Any marketer or founder who wants a quick read on how AI search engines currently perceive their brand. Run it once a month manually and screenshot the results to track changes over time.
Ahrefs Brand Radar (Free Tier)
Ahrefs Brand Radar draws from a database of over 250 million prompts to show where your brand appears across ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews. The free version requires no signup and returns a report showing mention frequency and citation data across these platforms.
What it does well: The breadth of coverage is impressive for a free tool. Brand Radar checks six AI platforms and provides competitive benchmarking, letting you compare your visibility against competitors in the same category. The full product also tracks YouTube, TikTok, and Reddit mentions.
What it's missing: The free tier gives you a snapshot report but not continuous monitoring. Custom prompt tracking, historical trend data, and AI Share of Voice require a paid Ahrefs subscription. You cannot set up alerts or schedule recurring checks on the free plan.
Who it's for: Brands that already use Ahrefs for SEO and want to add an AI visibility layer. The free check is also useful as a second opinion alongside HubSpot's grader, since each tool queries AI platforms differently.
Amplitude AI Visibility
Amplitude launched AI Visibility as a free tool in late 2025, and more than 27,000 brands have used it as of April 2026. It monitors brand performance across ChatGPT and Google AI Overviews, providing a visibility score, competitive rankings, and actionable recommendations.
What it does well: Unlike one-time graders, Amplitude provides ongoing monitoring inside the Amplitude platform. Features include traffic and ROI tracking, prompt and source analysis, and sentiment tracking (whether AI search engines recommend or warn against your brand). It is available on all Amplitude plans, including free accounts.
What it's missing: Coverage is limited to ChatGPT and Google AI Overviews. Perplexity, Claude, Gemini (standalone), and Grok are not tracked. If you are not already an Amplitude user, creating a free account adds another dashboard to manage. The tool also does not generate content or suggest specific fixes for visibility gaps.
Who it's for: Product and marketing teams already using Amplitude for analytics who want AI visibility data in the same platform. The ChatGPT and Google AI Overview coverage handles the two highest-traffic AI search channels.
Google Search Console (AI Overviews Data)
Google Search Console now reports impressions and clicks from AI Overviews and AI Mode alongside your regular web search data in the Performance report. If your site is already connected to GSC, you are collecting this data automatically.
What it does well: It is completely free, already connected to your domain, and requires no additional setup. You can see which queries trigger AI Overviews that include your content, track click-through rates from AI features, and use the November 2025 branded/non-branded filter to segment AI search traffic.
What it's missing: GSC does not yet offer a dedicated filter to isolate AI Overview traffic from regular organic traffic. All AI Overview metrics are aggregated with standard web search data, so you need to estimate the AI component. It also only covers Google. ChatGPT, Perplexity, Claude, and Grok are outside its scope entirely.
Who it's for: Any website owner. If you have a website, you should already be using GSC. The AI Overviews data is a free bonus on top of your existing SEO visibility tracking.
LLMrefs (Free Plan)
LLMrefs offers a free plan that monitors brand visibility, rank, and citations across nine platforms: ChatGPT, Google AI Overviews, Perplexity, Gemini, Claude, Grok, Copilot, Meta, and DeepSeek. That is the widest engine coverage of any free AEO tool.
What it does well: The breadth is the standout. Nine platforms from a single dashboard, with visibility, rank, and citation tracking across all of them. LLMrefs also draws from a dataset of 4.5 million ChatGPT prompts to generate tracking prompts automatically, so you do not need to guess which queries to monitor.
What it's missing: The free plan limits the number of prompts you can track, and some features (detailed citation URLs, historical trends) may require upgrading. LLMrefs is monitoring only. It does not generate content, suggest optimizations, or help you fix the gaps it identifies.
Who it's for: Teams that want the widest possible view of their AI visibility across engines without paying. Pair it with a content strategy to act on the gaps it reveals.
GrackerAI (Free Seed Tier)
GrackerAI offers a permanently free Seed tier that monitors 4 prompts and 3 competitors with no credit card and no time limit. It tracks AI citations across ChatGPT, Perplexity, Claude, and Gemini.
What it does well: A genuinely free forever plan is rare in this market. The Seed tier includes basic AEO/GEO visibility tracking and a starter pSEO portal. GrackerAI is specifically built for cybersecurity and B2B SaaS brands, so the prompts and benchmarks are tailored to those verticals.
What it's missing: Four prompts is extremely limited. Most brands need at least 50 to 100 tracked queries to get a meaningful picture of their AI visibility. The vertical focus on cybersecurity and SaaS also means the tool may not surface relevant benchmarks for other industries. Paid plans start at approximately $79/month.
Who it's for: Cybersecurity or B2B SaaS companies that want a permanent free baseline of their AI visibility. Four prompts is enough to track your brand name, your top competitor, and one or two key product queries.
Otterly AI (Free Snapshot)
Otterly AI provides a free snapshot that analyzes your brand across ChatGPT and Google AI Overviews using 20 strategic queries. It identifies your top 5 competitors, generates a visibility score, and provides 3 prioritized action items. No credit card required.
What it does well: The snapshot is immediately actionable. Rather than just showing you a score, Otterly identifies competitive gaps and tells you what to do about them. The full platform tracks 6 AI platforms (ChatGPT, Perplexity, Google AI Overviews, Google AI Mode, Gemini, and Copilot) and includes a GEO audit tool.
What it's missing: The free access is a one-time snapshot, not ongoing monitoring. After the snapshot, paid plans start at $29/month. The snapshot also only covers ChatGPT and Google AI Overviews, not the full set of engines available on paid plans.
Who it's for: Anyone who wants a fast, structured read on their AI visibility with specific recommendations. Run the free snapshot first, then decide whether $29/month for ongoing monitoring is worth it.
AEOtool.com (Free Schema Generator)
AEOtool.com provides a free FAQ Schema Generator that creates JSON-LD structured data for FAQ pages. Enter a question and answer, click generate, and copy the schema markup into your page's HEAD section. A multi-FAQ generator handles larger FAQ sections.
What it does well: Schema markup helps AI search engines parse your content more accurately. The tool is straightforward: input, generate, copy. No signup, no account, no limits. Pair it with Google's Rich Results Test to validate the output.
What it's missing: This is a single-purpose utility, not a visibility tracking tool. It does not monitor your AI search presence, track citations, or tell you whether your content is structured correctly for AI search engines. Schema markup is one component of AEO, not a strategy.
Who it's for: Content teams adding FAQ schema to existing pages. If you are publishing FAQ content and have not added structured data yet, this tool saves you from writing JSON-LD by hand.
ProductRank.ai (Free Brand Visibility Check)
ProductRank.ai provides free brand visibility checks across ChatGPT, Perplexity, Gemini, and Claude. Enter your brand name and get a report on how each AI platform mentions your product.
What it does well: Quick, no-cost visibility checks across four major AI search engines. Useful as a spot check to see whether your brand appears at all in each platform's responses.
What it's missing: Like other free tools, this is a point-in-time check rather than ongoing monitoring. It does not track changes over time, alert you to drops in visibility, or provide competitive context.
Who it's for: Founders and marketers who want a quick answer to "does ChatGPT/Perplexity/Gemini/Claude know about my brand?" before investing in a monitoring tool.
Writesonic (Free Trial)
Writesonic offers a free trial with 10,000 words of AI content generation, one article via the AI Article Writer, one site audit covering 100 pages, and five Chatsonic queries. No credit card required.
What it does well: The trial gives you a taste of combined content generation and AI search optimization. Writesonic's full platform tracks visibility across ChatGPT, Perplexity, Google AI Overviews, Gemini, Claude, Copilot, Grok, and Meta AI, though the GEO tracking features are locked behind paid plans starting at $199/month.
What it's missing: The free trial is a one-time credit, not a free tier. Once you use the 10,000 words, the only option is to upgrade. The most useful AEO features (GEO tracking, AI search visibility monitoring) are not included in the trial.
Who it's for: Teams evaluating whether Writesonic's combined writing and GEO tracking platform fits their workflow. Use the trial to test the content quality, not the monitoring features.
What Free AEO Tools Cannot Do
Free tools handle diagnosis. They tell you where you stand, which AI search engines mention your brand, and where the gaps are. That is genuinely valuable, especially for teams that have not yet assessed their AI visibility at all.
Where free tools fall short is in three areas. First, ongoing monitoring. AI search results change constantly, and single snapshots measure noise, not signal. A monthly manual check with a free grader is better than nothing, but it misses the day-to-day shifts that reveal real trends. Second, multi-engine tracking at scale. Free plans cap prompts at 4 to 20 queries. Meaningful AEO monitoring requires 50 to 300 queries across multiple AI search engines. Third, content execution. No free tool creates the content needed to fill the gaps it identifies. You still need to write the articles, join the Reddit threads, and build the third-party presence that earns AI citations.
What to do: Start with a free tool to establish your baseline. Use HubSpot AEO Grader or Ahrefs Brand Radar for a one-time score, Amplitude AI Visibility or LLMrefs for ongoing free monitoring, and Google Search Console for AI Overview traffic data. Once you know where the gaps are, decide whether to fix them in-house or invest in a paid platform that handles execution.
Free AEO Tool Comparison Table
As of April 2026, here is how the free tools compare on engine coverage, monitoring type, and key limitations.
| Tool | Engines Covered | Monitoring Type | Content Generation | Key Limitation |
|---|---|---|---|---|
| Loudmink Free Scan | ChatGPT, Perplexity, Gemini, Claude, Grok | One-time scan | No (free tier) | Ongoing monitoring requires paid plan |
| HubSpot AEO Grader | ChatGPT, Perplexity, Gemini | One-time snapshot | No | No ongoing tracking |
| Ahrefs Brand Radar | ChatGPT, Gemini, Perplexity, Copilot, Google AI Overviews | One-time report (free) | No | Continuous monitoring requires paid plan |
| Amplitude AI Visibility | ChatGPT, Google AI Overviews | Ongoing (free) | No | Only 2 engines |
| Google Search Console | Google AI Overviews only | Ongoing (free) | No | Cannot isolate AI traffic |
| LLMrefs | 9 engines | Ongoing (free tier) | No | Limited prompts on free plan |
| GrackerAI | ChatGPT, Perplexity, Claude, Gemini | Ongoing (free forever) | No | 4 prompts, 3 competitors |
| Otterly AI | ChatGPT, Google AI Overviews | One-time snapshot | No | Paid plans start at $29/mo |
| AEOtool.com | N/A | N/A (schema utility) | No | Schema only, not monitoring |
| ProductRank.ai | ChatGPT, Perplexity, Gemini, Claude | One-time check | No | No historical tracking |
| Writesonic | 8+ (on paid plans) | One-time trial | Yes (10K words) | Trial only, AEO features locked |
Frequently Asked Questions
Is there a completely free AEO monitoring tool?
Yes. LLMrefs offers a free plan with ongoing monitoring across 9 AI search engines, and GrackerAI provides a permanently free Seed tier tracking 4 prompts. Amplitude AI Visibility offers free ongoing monitoring for ChatGPT and Google AI Overviews inside any Amplitude account. Most other free tools are one-time snapshots rather than continuous monitoring.
Can free AEO tools replace paid platforms?
Free tools handle visibility assessment but not optimization. They tell you where you stand and where the gaps are, but they do not create the content, build the third-party presence, or manage the ongoing monitoring at scale needed to improve your AI search visibility. If your goal is diagnosis, free tools are sufficient. If your goal is improvement, you will eventually need either a paid platform or a dedicated content team.
Which free AEO tool should I start with?
Start with HubSpot AEO Grader for a comprehensive one-time score across three engines, then check Ahrefs Brand Radar for a second perspective across five platforms. If you want ongoing tracking without paying, set up Amplitude AI Visibility for ChatGPT and Google AI Overviews or LLMrefs for broader engine coverage.
Does Google Search Console track AI search visibility?
Google Search Console tracks traffic from Google AI Overviews and AI Mode in the Performance report under the "Web" search type. However, it does not isolate AI Overview traffic from regular organic search, and it only covers Google. Other AI search engines like ChatGPT, Perplexity, and Claude are not tracked.
How often should I check my AI search visibility with free tools?
Run a free assessment at least once a month. AI search results change frequently, and content published within the last 30 days gets priority in most AI search engines. A monthly check helps you spot trends, even if you cannot track changes daily.
Updated for May 2026: Added Loudmink Free Scan (full 5-engine coverage with PDF report), updated tool count and comparison table.