Best Free Answer Engine Optimization (AEO) Software

Semrush AIO is an advanced answer engine optimization (AEO) platform designed to help brands dominate visibility across AI-driven search and discovery channels. It tracks how brands are represented within large language models, search engines, and AI-powered shopping experiences. Powered by one of the largest AI and search datasets available, Semrush AIO analyzes hundreds of millions of LLM prompts worldwide. The platform provides detailed insights into brand mentions, sources, citations, and sentiment across products, locations, and markets. Semrush AIO connects AI search performance with traffic, engagement, and revenue data to show true business impact. Content optimization tools guide teams on what to improve, why it matters, and how to act quickly. Website intelligence ensures AI bots can properly access and interpret key pages. Competitive analysis features help brands benchmark visibility, detect rival strategies, and anticipate market shifts.

LLMO Metrics is a platform designed to track, analyze, and optimize your brand's presence in AI-generated responses across platforms like ChatGPT, Gemini, Copilot, AI Overviews, DeepSeek, Claude, and Perplexity. Recognizing that AI is becoming the new search engine, LLMO Metrics helps businesses ensure they are mentioned accurately and favorably in AI-driven queries. It offers features such as Generative Engine Optimization, which allows users to see where their brand ranks for key queries compared to competitors, with historical tracking. It also provides Answer Correction & Validation to ensure AIs provide accurate responses about your business by tracking deviations from the ground truth answers you provide. Additionally, LLMO Metrics enables monitoring of how AIs rank your brand and competitors, offering insights into which web pages are used as sources for AI responses.

Rankscale.ai is the next generation platform for Generative Engine Optimization (GEO)—built to help brands, SaaS products, and digital businesses dominate visibility in AI-driven search engines like ChatGPT, AI Overviews (Google SGE), Perplexity, Claude, Mistral, and DeepSeek. Unlike legacy SEO tools stuck in the past, Rankscale is engineered for the AI-first web. It offers daily tracking of your AI search footprint, deep citation analysis (currently across ChatGPT, Perplexity, and AI Overviews), and powerful filtering, searching, and categorization of citations—so you can quickly see who’s mentioning you, where, and why.

Sellm is the ultimate brand tracking tool for marketing teams who want complete control over their online presence. Sellm tracks and analyzes brand mentions in multiple LLM platforms, as ChatGPT, Gemini and Perplexity offering key insights for your strategy. Thanks to advanced LLM brand mention monitoring software, Sellm helps you spot opportunities, manage reputation, and stay ahead of competitors. With Sellm, your brand receives clear reports on mentions, keywords, and competitor activity. Optimize your brand visibility on LLMs and protect your brand with Sellm, the benchmark in llm brand tracking tools.

Hall helps you understand and measure how your business and website appears in the millions of questions people are asking AI. Hall monitors and tracks real questions across conversational AI platforms like ChatGPT, Gemini, Google AI Overviews, Microsoft Copilot, Perplexity, Claude, and more. With Hall, you can monitor how your brand and company appears in AI conversations, see the conversations where your website is referenced and cited, and observe how autonomous AI agents are using your website.

Stobo audits your website for AI search visibility. When users ask ChatGPT, Claude, or Perplexity about your category, your site needs to be in the answer. The free audit checks six technical factors: robots.txt configuration for AI crawlers, llms.txt implementation, schema markup, sitemap structure, FAQ content, and direct answer optimization. Most sites score below 40. Basic fixes push you above 80. Your report includes production-ready JSON-LD schema blocks, bespoke FAQ content written for your products, and optimized first paragraphs for every key page. All code and Texts are copy-paste ready. Save weeks of research and hours of development time. Built by ex-Apple designers. Free audit at trystobo.com, implementation reports for €199.

HubSpot's AI Search Grader is a free tool designed to help brands understand and enhance their presence in AI-powered search engines. By analyzing how your brand appears in AI search results, the tool provides insights into brand sentiment and share of voice, offering a comprehensive score that reflects overall performance. This analysis enables marketers, SEO experts, entrepreneurs, and blog administrators to identify areas for improvement, optimize strategies, and increase brand visibility, traffic, awareness, and sales. Currently, AI Search Grader evaluates results from GPT-4o, with plans to incorporate more AI search engines in the future. The tool is free to use and can be applied to assess your own brand or others within your industry to gauge performance and visibility. As more people move to AI search engines like ChatGPT and Perplexity for answers to their queries, brands will need to think beyond traditional search methods.

Kai is a platform designed to help businesses improve their visibility across AI-driven search engines like ChatGPT. With its advanced AI brand analytics, Kai tracks brand mentions, keywords, and competitor performance, enabling companies to increase their presence in AI-generated responses. It offers insights into AI search performance, helping businesses adjust their marketing strategies and climb the rankings. With features like real-time reporting, competitor monitoring, and actionable recommendations, Kai ensures your brand is seen by the right audience in AI-powered conversations.

LLMrefs is an AI SEO platform designed to enhance brand visibility within AI-driven search engines such as ChatGPT, Claude, Gemini, Perplexity, and Grok. It enables users to monitor how their brand is represented across these platforms, providing insights into keyword rankings and the sources AI tools reference when discussing their brand. By analyzing mentions and comparing visibility scores with competitors, LLMrefs assists users in optimizing their content for better alignment with AI search behaviors. It offers a user-friendly interface, allowing sign-ups via email, Google, or Microsoft accounts, and does not require a credit card to get started. It is trusted by SEO professionals, founders, and industry leaders seeking to adapt to the evolving landscape of AI-powered search.

AI Visibility is a platform designed to enhance how brands appear across various AI platforms. It offers advanced optimization tools to ensure brands stand out in the age of artificial intelligence, delivering measurable improvements in AI-driven brand perception. The platform provides real-time brand visibility tracking, measures AI presence effectiveness, and offers AI-driven visibility improvements. Trusted by over 500 brands, AI Visibility has monitored more than 1 million AI interactions, achieving an average visibility improvement of 40%.

KNWN helps businesses understand how visible their brand is to AI tools like ChatGPT, Perplexity, Gemini, and Claude. It scans your website and shows you whether AI models can access, interpret, and recommend your content to users. You’ll get an AI Visibility Score, Audience Fit Score, and real-time analytics showing how often AI agents mention your site. If there are gaps, missing pages, unclear content, or poor structure. KNWN tells you what to fix and how. For Pro users, it also generates AI-optimized content and recommends actions to improve AI discoverability. It's ideal for founders, marketers, and agencies who care about SEO but want to go one step further: making sure their brand exists in AI conversations.

Cairrot is an AI Visibility tool that improves your position in AI search as soon as you install it. Cairrot is the only AI visibility tool that offers a Wordpress plugin, that tracks LLM crawl logs for free, and offers an API so you can build your own internal marketing tools. Cairrot publishes actionable tutorials for Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO). We help marketers and marketing agencies rank websites on LLMs like ChatGPT, Perplexity, Gemini, Claude, Grok, and more. We also share data studies from our internal research and marketing experiments. As one of the most trusted AI Visibility tools, we are proud to share free insights for marketers to track, optimize, and rank in AI search. Cairrot shows marketing teams and agencies how to get ranked and win traffic from LLMs like ChatGPT, Perplexity, Gemini, Claude, Grok, and more. You’ll find useful tutorials on topics like AI visibility, LLM algorithms, and AEO strategies.

Glide is an innovative AI tool that transforms advanced technologies like ChatGPT, Gemini, and Copilot into powerful lead generation systems. Designed for B2B and SaaS companies, Glide helps businesses drive qualified organic traffic and enhance their online visibility by up to 50% within 30 days. With guaranteed indexing through over 600 international media outlets, Glide strategically positions your brand to capture valuable leads and boost growth. Experience the future of lead generation and optimize your marketing strategy with Glide.

Justblank.io is a free AI-powered analytics platform that helps brands turn competitive insights into actionable steps to boost visibility across AI-driven search. It analyzes how brands and competitors perform in emerging search environments, then provides specific recommendations to improve content and visibility. Designed for marketing and brand teams, Justblank.io bridges the gap between data and execution, helping businesses stay ahead in the evolving landscape of AI-powered discovery.

Geneo is a platform designed to help businesses optimize their content for AI-driven search engines like ChatGPT, Perplexity, and Google AI Overview through Generative Engine Optimization (GEO) and Answer Engine Optimization (AEO). It offers real-time multi-platform monitoring of brand visibility, competitor analysis, trend insights, and performance metrics. The platform features AI-powered sentiment analysis to track brand reputation and identify positive or negative mentions across AI search results. Users can access complete query history tracking, including raw AI responses and performance comparisons over time. Geneo supports flexible workspace management for multi-brand monitoring with customizable permissions. With a free trial and scalable pricing plans, Geneo helps businesses stay ahead in AI search rankings and drive qualified traffic.