What is LLM Visibility? How to Measure Brand Presence in AI
LLM Visibility is how often AI assistants mention a brand and describe it correctly: where AI gets its information, how to measure it and how to improve it.
LLM Visibility is how often AI assistants such as ChatGPT, Claude, Gemini and Perplexity mention a brand and describe it correctly when users ask about the industry or related services. The practical way to measure it is to ask and record the answers.
Being named by AI is different from getting traffic from Google: users may get everything they need inside the answer without opening a link.
Where AI gets information about a brand
There are two routes. The first is training data, collected from the web by crawlers such as OpenAI's GPTBot. The second is retrieval at answer time: OAI-SearchBot surfaces websites in ChatGPT's search feature, and ChatGPT-User visits a page when a user asks.
These three crawlers play different roles. According to OpenAI, blocking GPTBot in robots.txt means content is not used for training, blocking OAI-SearchBot means it does not appear in ChatGPT search, and ChatGPT-User is user-initiated, so robots.txt rules may not apply.
For Google, AI Overviews and AI Mode only require that a page is indexed and eligible to show with a snippet. No special file or markup is needed.
How to check it yourself
Ask an AI assistant about the brand and about the industry, for example "What is [Brand] and who founded it?" and "What are the top [industry] services in [region]?". Record whether the brand appears, whether the description is correct and which sources are cited. Answers can differ between runs, so run each question a few times and repeat monthly with the same question set.
The full prompt set: Check if AI understands your brand.
How to improve it
- ◆Check robots.txt so you are not blocking the crawlers of the systems you want to appear in.
- ◆Write a self-contained 2 to 4 sentence definition of the brand at the top of the main page.
- ◆Keep information consistent across the website, social profiles and structured data.
- ◆Google states you do not need to create AI-specific text files or special markup to appear in AI Overviews and AI Mode.