Free GEO Tools: Essential Resources for AI Visibility

You don't need a huge budget to start working on your AI visibility. There are free tools that allow you to diagnose, measure, and begin improving your presence in major LLMs. Here are the most useful ones.

Diagnostic and Analysis Tools

Mentio (Free Plan)

Mentio offers a free plan that allows complete AI visibility analysis. You enter your brand and industry, and the tool generates native-language questions, queries ChatGPT, Claude, Gemini, Grok, and Perplexity, and returns a report with your visibility, position, sentiment, and recommendations. It's the only free tool specifically designed for the Spanish-speaking market.

HubSpot AI Search Grader

HubSpot offers a free tool that evaluates how LLMs interpret your brand. It provides a general visibility score, sentiment analysis, and personalized recommendations. It's a good starting point, although it works primarily in English and doesn't allow as deep analysis as paid tools.

Mangools AI Search Grader

Another free option that evaluates your visibility across multiple LLMs including ChatGPT, Perplexity, Claude, Grok, and DeepSeek. It offers a quick diagnosis although with less depth than specialized tools.

The Manual Method (Free but Laborious)

The most basic and completely free way is to ask LLMs directly. Open ChatGPT (chat.openai.com), Claude (claude.ai), and Gemini (gemini.google.com), and ask questions that your potential customers would ask. Note the results in a spreadsheet.

This method is free but has limitations: it's slow, not systematic, responses vary each time, and you can't easily track evolution. It works as an initial diagnosis but not as a long-term strategy.

Complementary Tools (SEO That Reinforces GEO)

Google Search Console (Free)

Although it's an SEO tool, Search Console helps you understand how visible your website is to Google, which directly influences your GEO. LLMs tend to cite sources with good domain authority.

Schema.org Markup Validator (Free)

Validates that your structured data is correct. Good Schema.org markup helps AI systems understand what your brand is, what it offers, and how it relates to your industry.

Geoptie (Free Tools)

Geoptie offers several free tools without registration: GEO audit, content checker, AI keyword finder, and rankings tracker. They're useful as supplements, although they're focused on the Anglo-Saxon market.

When Do You Need a Paid Tool?

Free tools are perfect for an initial diagnosis and for brands just starting to explore GEO. But they have important limitations.

You need a paid tool when you want to run recurring analyses and compare evolution, when you need to compare yourself with multiple competitors systematically, when you manage multiple brands (agencies), when you need professional reports for clients or executives, or when you want actionable AI-generated recommendations on how to improve.

In these cases, tools like Mentio Pro (from €29/month) offer deeper analysis, multiple LLMs, advanced competitive intelligence, and personalized recommendations that more than justify the investment.

Conclusion

Getting started with GEO doesn't require investment. Free tools allow you to diagnose your situation and understand where you stand. But if you want to improve systematically, measure your progress, and outpace your competition in AI visibility, paid tools are the natural next step.

The important thing is to start. Every day that passes without measuring your AI visibility is a day your competition could be gaining ground in ChatGPT, Claude, and Gemini without you knowing.

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