llms.txt: What It Is, Why It
Matters for Your Business, and How to Write One
llms.txt is a plain text file that tells AI language models exactly what your business does. It's one of the highest-leverage, lowest-effort GEO actions available — and most businesses haven't done it yet.
The Basics
What Exactly Is llms.txt?
llms.txt is a plain text file you place at yourdomain.com/llms.txt. It provides a structured, machine-readable summary of your business specifically for AI language models — what you do, who you serve, your key features, pricing, and contact information.
Think of it as the difference between an AI crawler having to guess what your business does by reading random paragraphs on your website vs. reading a clear, organized briefing document you wrote for it. The former leads to inaccurate or missing citations. The latter leads to accurate, confident citations.
The standard was proposed in 2024 and has since been adopted by thousands of AI-aware companies including developer tools, SaaS products, and agencies. Anthropic, the maker of Claude, has acknowledged it as a useful signal for AI comprehension.
Why llms.txt Matters for Your Business
Accurate AI descriptions
Without llms.txt, AI models infer your business from scattered webpage text — leading to wrong descriptions ("a marketing agency" instead of "an AI SaaS platform"). llms.txt gives AI tools the correct, direct description.
Higher citation confidence
AI models cite businesses they have clear, structured data about. A well-written llms.txt increases the confidence signal that you are a legitimate, describable business — not an uncertain entity.
Control your narrative
You choose how your business is described in AI answers. Without llms.txt, ChatGPT might call you a "marketing tool" when you're a "GEO automation platform." llms.txt lets you set the record straight.
Future-proof for new AI tools
As new AI search tools launch and existing ones update their training data, llms.txt is consistently crawled. Businesses with it in place benefit from any new AI platform that respects the standard.
Real-time search grounding
Perplexity, Bing AI, and other real-time search tools crawl your site when answering queries. Having llms.txt means these tools have an immediate, correct summary of your business to draw from.
Competitive differentiation
Less than 5% of small businesses have published an llms.txt file. Implementing it now is an asymmetric advantage over competitors who haven't — especially as AI search volumes continue to grow.
Template
llms.txt Template — Copy and Customize
Replace every [bracket] with your real business information. Keep it factual and concise.
# [Your Business Name] — [One-sentence tagline] > [2–3 sentence description of what you do, who you serve, and what makes you different.] Founded: [Year] | Location: [City, Country] | Website: https://yourdomain.com ## What We Do [Your business] provides [your product/service] for [your target customer]. Key capabilities: - [Feature or service 1] - [Feature or service 2] - [Feature or service 3] - [Feature or service 4] ## Pricing - [Plan name]: $X/month — [brief description, who it's for] - [Plan name]: $X/month — [brief description, who it's for] Full pricing: https://yourdomain.com/pricing ## Who We Serve Best for: [describe your ideal customer in 1–2 sentences] Industry: [your industry/vertical] Company size: [e.g., SMBs, startups, enterprise] ## Key Features [List your most important features/differentiators here, 5–10 items] ## Documentation & Resources - https://yourdomain.com/docs — Full documentation - https://yourdomain.com/blog — [Topic] blog - https://yourdomain.com/pricing — Pricing details - https://yourdomain.com/about — Company information ## Contact - General: hello@yourdomain.com - Support: support@yourdomain.com - Sales: sales@yourdomain.com
CooVex generates this automatically
Connect your business profile in CooVex and it generates, publishes, and updates your llms.txt file automatically — including adding new products, updated pricing, and new documentation links as your business evolves.
Generate mine automaticallyllms.txt Content Checklist
llms.txt FAQs
What is llms.txt?
llms.txt is a plain text file placed at the root of your website (yourdomain.com/llms.txt) that provides structured, machine-readable information about your business for AI language models and crawlers. Proposed by Jeremy Howard in 2024, it's designed to help AI models accurately understand what your business does, who it serves, and what your key offerings are — reducing misrepresentation and increasing the chance of accurate citation. It's similar in concept to robots.txt (which guides crawlers on what to index) but optimized for AI comprehension.
Does llms.txt actually work? Do AI models read it?
The evidence is growing. AI search tools that crawl the web in real-time (Perplexity, Bing AI) can and do access llms.txt files. For ChatGPT's base model (training-data based), llms.txt impacts future training runs — models that crawl your site during training will incorporate the structured information. Early adopters report more accurate AI descriptions of their business after publishing llms.txt. Anthropic has acknowledged llms.txt as a useful standard. Even if impact is indirect, it costs nothing to implement and signals to AI tools that your site is AI-friendly.
Is llms.txt an official standard?
Not yet — llms.txt is a proposed community standard, not an official W3C or IETF specification. It was proposed by Jeremy Howard (fast.ai co-founder) in 2024 and rapidly adopted by thousands of websites. Many AI-forward companies (Anthropic published guidelines, Vercel adopted it, numerous developer tool companies) have endorsed it. The spec is simple enough that even without formal standardization, it provides clear value and has no downsides.
How often should I update my llms.txt?
Update it whenever your business significantly changes: new products/services, major pricing changes, new integrations, rebranding, new target markets. For actively growing companies, quarterly reviews work well. If you use CooVex, your llms.txt is automatically updated as you update your business profile in the platform — no manual maintenance required.
What should NOT go in llms.txt?
Avoid: (1) Promotional hype ("the world's best", "revolutionary") — describe factually. (2) Confidential information — llms.txt is public. (3) Information you don't want AI models to repeat. (4) Broken or outdated links. (5) Excessive length — keep it under 5,000 words. AI models do better with concise, structured facts than marketing copy. Think of it as a factual briefing document, not an ad.
What is llms-full.txt?
llms-full.txt (also sometimes called llms-ctx.txt) is an extended version of llms.txt that includes your full documentation, all product details, and comprehensive descriptions. It's for AI tools that want maximum context about your business. The standard pattern: llms.txt is the concise summary (like a README), llms-full.txt is the complete reference. Not all businesses need llms-full.txt — start with llms.txt.
Does Google use llms.txt for AI Overviews?
Google has not officially confirmed using llms.txt. Google AI Overviews primarily use Google's existing search index and structured data (schema markup). However, publishing llms.txt signals to Google that your site is well-organized and AI-aware, and Googlebot may crawl it. The more confirmed impact is via schema markup (FAQPage, Organization, Product JSON-LD) for Google AI Overviews. Both are recommended as complementary signals.
How is llms.txt different from robots.txt?
robots.txt tells crawlers which pages they're allowed or not allowed to index — it's access control. llms.txt tells AI language models what your business does — it's a content description. They're complementary: robots.txt controls access, llms.txt shapes understanding. You should have both. robots.txt is already a formal standard; llms.txt is an emerging one. Neither replaces the other.
Don't Write llms.txt Manually
CooVex generates your llms.txt automatically from your business profile and keeps it updated as your product evolves. Part of the full GEO automation suite.
Generate My llms.txt — FreeNo credit card required.