# Lighthouse — AI Visibility Intelligence > Lighthouse helps brands understand and improve how AI platforms like ChatGPT, Claude, Perplexity, and Gemini perceive and recommend them. Built by https://ahoylighthouse.com ## Pages - [Lighthouse — AI Visibility Intelligence for Modern Brands](https://www.ahoylighthouse.com/): See exactly how ChatGPT, Perplexity, Claude, and other AI assistants describe your brand. Get actionable GEO recommendations to improve your AI visibility. - [Lighthouse App — AI Visibility Analysis](https://www.ahoylighthouse.com/app): Interactive platform to analyze how AI platforms see your brand with visibility scores, sentiment analysis, competitor benchmarks, and GEO content scoring. - [Learn — AI Visibility Knowledge Base](https://www.ahoylighthouse.com/learn): Comprehensive guides covering what AI visibility is, how GEO scoring works, how to interpret citations, how to run your first analysis, and strategies for improving brand presence in AI responses. - [AEO Scorecard — Our Own AI Visibility, Published Live](https://www.ahoylighthouse.com/scorecard): Lighthouse's own visibility scores, GEO grade, citations vs tracked competitors, and AI crawler activity, measured with our own platform against a frozen July 2026 baseline. - [Blog — AI Visibility Research & Strategy](https://www.ahoylighthouse.com/blog): Research-backed articles on GEO optimization, AI platform differences, brand visibility measurement, and practical content strategies for the AI era. - [Pricing — Plans & Pricing](https://www.ahoylighthouse.com/pricing): Free, Pro ($79/month), and Agency ($249/month) plans for monitoring brand visibility across 10+ AI platforms. - [About Lighthouse](https://www.ahoylighthouse.com/about): The story behind Lighthouse, why it was built, and how it helps brands understand and manage how AI platforms perceive them. - [Download Lighthouse Desktop](https://www.ahoylighthouse.com/download): Download the macOS desktop app to run AI visibility audits locally. - [Prediction Markets Radar](https://www.ahoylighthouse.com/predictions): Search and track prediction markets from Kalshi and Polymarket. - [Changelog](https://www.ahoylighthouse.com/changelog): Documented record of every feature, improvement, and bug fix shipped to Lighthouse. ## Guides - [What Is AEO? Answer Engine Optimization Explained](https://www.ahoylighthouse.com/learn/what-is-aeo): AEO (Answer Engine Optimization) is the practice of getting your brand cited in AI answers from ChatGPT, Perplexity, and Google AI Overviews. Definition, how it works, and how to start. - [What Is GEO? Generative Engine Optimization Explained](https://www.ahoylighthouse.com/learn/what-is-geo): GEO (Generative Engine Optimization) makes your content more likely to be cited by ChatGPT, Perplexity, and other AI engines. What it means, how it differs from SEO, and how to measure it. - [AEO vs SEO: What Changes When AI Writes the Answer](https://www.ahoylighthouse.com/learn/aeo-vs-seo): AEO optimizes for AI-written answers; SEO optimizes for ranked links. Where they overlap, where they diverge, and how to run both without doubling your workload. - [Best AEO Tools in 2026: 8 Platforms Compared](https://www.ahoylighthouse.com/learn/best-aeo-tools-2026): A fair comparison of 8 AEO and AI visibility platforms in 2026 — Lighthouse, Profound, AthenaHQ, Evertune, Goodie AI, Ahrefs Brand Radar, Otterly, Writesonic — with real prices and trade-offs. - [How to Track Your Brand in ChatGPT, Claude & Perplexity](https://www.ahoylighthouse.com/learn/how-to-track-brand-in-chatgpt): A step-by-step method for monitoring what AI assistants say about your brand: build a prompt set, query engines consistently, score mentions and sentiment, and trend it over time. - [How to Get Cited by ChatGPT & Perplexity: Three Gates](https://www.ahoylighthouse.com/learn/how-to-get-cited-by-ai): AI engines cite a page only if they can fetch it, choose it, and extract from it. A practical walkthrough of all three gates with the specific fixes for each failure mode. - [llms.txt: What It Is and How to Add One](https://www.ahoylighthouse.com/learn/llms-txt-guide): llms.txt is a plain-text site map for AI assistants. What goes in it, how it differs from robots.txt, how to add one in an afternoon, and a live reference implementation. - [AI Search Glossary: AEO, GEO, Citations & 20 More Terms](https://www.ahoylighthouse.com/learn/ai-search-glossary): Plain-English definitions of the terms used in AI search optimization: AEO, GEO, answer engines, citations, visibility score, query fan-out, llms.txt, RAG, and more. ## Blog Posts - [How LLMs Interpret Citations: Implications for GEO and Content Strategy](https://www.ahoylighthouse.com/blog/how-llms-interpret-citations-implications-for-geo-and-content-strategy): This research investigates how large language models (LLMs) interpret citations and the impact on GEO and content strategies. - [What is Lighthouse? Just the Facts](https://www.ahoylighthouse.com/blog/what-is-lighthouse-just-the-facts): Explore what Lighthouse is all about—its purpose, functionalities, and how it helps brands navigate AI visibility. - [AI Visibility Tools Compared: How Lighthouse Stacks Up Against Profound, Otterly, and the Rest](https://www.ahoylighthouse.com/blog/tool-comparison): The AI visibility market is growing fast, and choosing the right tool matters. We broke down pricing, features, and platform coverage across every major competitor — and yes, we included ourselves. - [Most Brands Are Invisible to AI. Here’s What That Actually Means.](https://www.ahoylighthouse.com/blog/invisible-brands): We analyzed how 10 major AI platforms respond to common industry questions. The results reveal a massive gap between brand awareness and AI visibility. - [The GEO Playbook: How to Optimize Content for AI Citability](https://www.ahoylighthouse.com/blog/geo-playbook): SEO got you to page one. GEO gets you into the AI answer. Here’s a practical, step-by-step guide to making your content more citable by generative AI models. - [ChatGPT vs. Claude vs. Gemini: How Each Platform Recommends Brands Differently](https://www.ahoylighthouse.com/blog/chatgpt-vs-claude): Each AI platform has different training data, retrieval methods, and tendencies. Here’s what we’ve learned. - [Why AI Visibility Should Be Your Newest Marketing KPI](https://www.ahoylighthouse.com/blog/ai-visibility-kpi): There’s a new metric that belongs on every marketing dashboard — and most teams haven’t started measuring it yet. - [PR in the AI Era: Managing Brand Reputation When AI Tells the Story](https://www.ahoylighthouse.com/blog/pr-ai-era): How PR professionals are adapting to a world where AI shapes the brand narrative.