Does AI search use my meta description or Open Graph tags?

As of October 2026, no AI search engine documents using the meta description or Open Graph tags to compose an answer. Google, OpenAI, Anthropic, Perplexity and Microsoft publish guidance on crawling, indexing and snippet controls. None of that guidance names the description tag or og: properties as an input to generated answers.

Google goes further. Its AI features page says a page must be indexed and eligible to show a snippet to appear as a supporting link in AI Overviews or AI Mode, and that "there are no additional technical requirements." Its generative AI optimization guide says you don't need new markup to appear in Google's generative features.

That doesn't prove engines ignore these tags. It means nobody has shown they help, and the vendors don't claim they do. Meta descriptions and Open Graph tags were built for result listings and link previews. They still do that job.

What it means for you: write them for humans who see your listing or shared link. Don't expect them to shape what ChatGPT or AI Overviews say about you.

Here is what the primary sources say, and what they don't.

• Google AI Overviews and AI Mode. Eligibility needs indexing plus snippet eligibility. Google adds that "indexing and serving isn't guaranteed" and that no special optimizations are necessary.
• Google's generative AI guide. It says you don't need AI text files, markup or Markdown, and you don't need to write in a special way for AI.
• Bing and Copilot. Bing documents data-nosnippet: marked content "is still indexed normally, but it will be excluded from snippets and AI summaries."
• OpenAI. Its crawler page covers which bots fetch your site (OAI-SearchBot for ChatGPT search, GPTBot for training). It says nothing about meta descriptions.
• Anthropic. The Claude web search tool cites short spans of page text, with a page_age field for when the page was updated.

The pattern is consistent. Engines document access and suppression. They document quoting text from the page. They don't document reading your summary tag. The same evidence pattern applies to structured data versus plain-text facts: the sentence on the page is what gets quoted.

One family of meta tags has a documented effect on AI answers: the robots meta tag and its directives. Google and Bing name these as the on-page controls for AI features.

• noindex removes the page from the index, so it can't be a supporting link.
• nosnippet blocks snippets, which also removes eligibility for AI Overviews and AI Mode links.
• max-snippet:0 has the same effect as nosnippet.
• data-nosnippet on an element hides that block from snippets and AI summaries while the page stays indexed.

A typical directive looks like this:

<meta name="robots" content="nosnippet">

These controls are subtractive. None of them makes a page more likely to be cited. The common failure is accidental: a template ships nosnippet or a stray noindex, and the page disappears from AI answers with no warning. Check your templates before you touch anything else in the head.

Tags or text injected by JavaScript

Vercel's crawler study found that ChatGPT and Claude crawlers fetch JavaScript files but don't execute them. If your framework writes body content (or even robots directives) after the page loads, those crawlers may never see it. Googlebot renders JavaScript, so Google surfaces behave differently from the rest.

Social previews in AI apps

Some chat apps show link cards. No vendor documents how those cards are built. Don't assume Open Graph controls them, and don't assume it doesn't.

Answers given without retrieval

When an engine answers from training data alone, no page is fetched at the moment of the answer. No tag on your site, meta or otherwise, reaches that answer this quarter.

Schema in the head

Structured data sits in the same bucket of unproven levers. Ahrefs' matched test found AI Overview citations fell 4.6% after pages added schema. Our page on whether schema helps AI citations covers the limits of that study.

1. Keep writing meta descriptions for people. They still serve result listings and shared links. Use the meta description length checker to keep them readable.
2. Move key facts into the body. Your price, plan names, category and a one-line definition should appear as plain sentences in the HTML. A specific fact on a fetchable page gives the engine a sentence it can quote.
3. Audit your robots directives. Search templates for noindex, nosnippet, max-snippet and data-nosnippet. Confirm each one is intentional.
4. Check the raw HTML. Load the page with JavaScript off. If the facts vanish, server-render them.
5. See what AI actually says. Our guide to finding out what AI says about your company walks through it, and the free checker on this site gives a snapshot for three buyer questions.

What stays outside your control: which pages an engine retrieves, and which it cites. Fix what blocks you, then measure.