What is an llms.txt file?

An llms.txt file is a markdown-formatted file placed at the root of your website (e.g., yourdomain.com/llms.txt) that provides AI language models with a structured, easy-to-parse summary of your site's content, brand, and key pages — similar to how a sitemap helps search engine crawlers.

Why do I need an llms.txt file?

AI models like ChatGPT, Claude, and Perplexity have limited context windows and struggle to parse complex HTML. An llms.txt file provides the key information about your site in a format AI can natively consume, improving how your brand is represented in AI-generated responses and generative search results.

How is llms.txt different from robots.txt?

robots.txt tells crawlers which pages to avoid indexing. llms.txt is the opposite: it's a positive signal that tells AI models exactly what you want them to know about your site. It's not about blocking — it's about clarity and AI visibility.

Where do I put the llms.txt file on my site?

Place the file at the root of your domain: https://yourdomain.com/llms.txt. AI tools that support the standard will automatically find and use this file when crawling your site.

What's the difference between llms.txt and llms-full.txt?

llms.txt is a concise index with links and short descriptions — ideal for AI models with limited context. llms-full.txt is an extended version containing the full content of each page inline. Our generator creates the standard llms.txt, which is the most widely supported format.

Is this generator free?

Yes, completely free. No credit card required, no account needed. Just paste your URL and download your llms.txt file.

How accurate is the auto-generated content?

Our generator extracts real metadata from your live site — page titles, meta descriptions, OG tags, and body text. The output is generally accurate, but we recommend reviewing and editing the file before deploying, especially for the brand description and page summaries.

Can I edit the file before downloading?

Yes. After generation, the file is fully editable in your browser. You can refine any section, update descriptions, remove pages, or add custom content before downloading.

What's the difference between SEO and AEO (AI Engine Optimization)?

Traditional SEO optimizes your site for search engine algorithms. AEO (AI Engine Optimization) is about making your brand and content visible and accurate in AI-generated responses. As more users turn to ChatGPT, Perplexity, and Claude for answers, AEO ensures your brand appears correctly. Sona's Agent Analytics platform helps you monitor and improve your AI visibility continuously.

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2026-06-06 · 7 min read

How to Improve Your Brand's Visibility in ChatGPT, Claude & Perplexity

More people now ask ChatGPT, Claude, and Perplexity for recommendations than ever before — and those models decide which brands to mention based on what they can read about you. Optimizing for that is called AEO (Answer Engine Optimization) or GEO (Generative Engine Optimization). Here's a practical playbook.

1. Publish an llms.txt file

This is the highest-leverage first step. An llms.txt file gives models a clean, authoritative summary of your brand and key pages, reducing the chance they describe you inaccurately. Generate one free with our llms.txt generator and deploy it to your domain root.

2. Make your pages easy to parse

Models reward clarity. Use real headings, descriptive title and meta tags, and Open Graph data. Put the important facts in text, not locked inside images or scripts. The cleaner your HTML, the more reliably an AI can extract and cite it.

3. State facts plainly and consistently

AI answers are built from patterns across the web. Describe what you do, who you serve, and what makes you different in clear, consistent language across your homepage, About page, and llms.txt. Inconsistent or vague positioning leads to vague — or wrong — AI summaries.

4. Don't accidentally block AI crawlers

Check that your robots.txt isn't disallowing AI user agents like GPTBot, ClaudeBot, or PerplexityBot. See llms.txt vs robots.txtfor how the two files interact — you want to block the right things without locking out the assistants you're trying to reach.

5. Measure and iterate

AI visibility isn't set-and-forget. Track how assistants describe your brand and which pages they cite over time, then refine your content and llms.txt accordingly. Sona's Agent Analyticsmonitors how AI agents discover and represent your brand so you can see what's working.

Start today

The single fastest action you can take right now is generating your llms.txt file — it takes about 30 seconds and lays the foundation for everything else above.

Generate your llms.txt file free →