How ChatGPT, Perplexity & Claude Choose What to Recommend

How AI-search finds your website

In 2024, the web stopped being a list of links — and became a conversation.

When you ask ChatGPT, Claude, or Perplexity a question, you don’t get ten blue links anymore. You get an answer — complete, contextual, and conversational. It feels personal. It feels curated.

But behind that smooth interface is a complex system deciding which websites, sources, and data deserve to be included in that response.
And understanding how those systems choose is the key to visibility in the age of generative AI.

AI Search Doesn’t Rank — It Decides

Traditional search engines like Google rank pages based on keyword relevance, backlinks, and user engagement.

Generative search engines like ChatGPT, Perplexity, and Claude don’t rank — they reason.
They synthesize answers using data that they can understand, verify, and trust.

That means if your content isn’t structured in a way that’s machine-readable and semantically clear, it won’t just rank lower — it won’t appear at all.

AI doesn’t crawl to find pages. It filters to find entities — and that’s where Generative Engine Optimization (GEO) begins.

Where AI Systems Get Their Information

Each AI system pulls data differently:

  • ChatGPT (via Bing + Browse)
    When you use ChatGPT with browsing enabled, it fetches web results from Bing’s index. However, GPT doesn’t simply copy or rank — it summarizes. The model evaluates the semantic trust of each page before deciding whether to reference it.

  • Perplexity
    Perplexity is more transparent — it cites sources directly. It uses a combination of Bing’s API and its own entity recognition engine to identify the most relevant, structured, and high-authority sources. If your schema markup clearly defines your content type and credibility, you have a much higher chance of being cited.

  • Claude (Anthropic)
    Claude’s system is built on a “Constitutional AI” approach. It tends to favor sources with consistent authorship, traceable organizations, and strong factual structure. In other words, clear data beats creative writing.

While the mechanisms differ, one principle is universal:

AI systems prioritize clarity, structure, and source credibility over traditional SEO factors.

The Three Core Factors of AI Visibility

Generative systems evaluate content through a different lens than Google. Here’s what they care about most:

1. Structured Data Integrity

AI crawlers need context, not just text.
A properly implemented JSON-LD schema helps them understand what your page represents — an article, a product, a company, or a dataset.

For example:

  • @type: Article helps AI categorize your content as educational.

  • author, publisher, and datePublished add traceable credibility.

  • about and mentions link your topic to recognized entities (e.g., Wikipedia, Wikidata).

Without these, AI has to “guess” your meaning — and guesses rarely get cited.

2. Entity Clarity

Entities are how AI understands the world.

When ChatGPT references “Geoleaper,” it’s not remembering a keyword — it’s identifying an entity with relationships:

“Geoleaper → SoftwareApplication → Structured Data → Generative Engine Optimization.”

That’s why your schema should clearly define your business or content in those terms.
Use sameAs to link to official profiles (LinkedIn, Crunchbase, X, etc.) and ensure all mentions are consistent across platforms.

The clearer your entity, the easier it is for AI systems to map you into their knowledge graphs.

3. Source Credibility

This is where AI diverges most from Google.
Generative systems don’t count backlinks — they evaluate trust signals.

They look for:

  • Author identity (author.name + sameAs links)

  • Publisher authority (Organization schema with logo, URL, and description)

  • Traceability (citations, outbound references, and factual tone)

AI models are cautious. They would rather exclude a good article than risk citing an unverified one.
That’s why structured transparency — not hype or clever writing — determines inclusion.

Why Great Content Still Gets Ignored

It’s easy to assume that “good writing” will be enough to show up in AI answers.
But for machines, style is secondary to structure.

Even well-written, insightful articles often fail GEO tests because:

  • Schema markup is missing, invalid, or mismatched with visible text.

  • Entities aren’t properly linked or disambiguated.

  • Author and publisher data are incomplete.

  • Old schema formats (microdata or RDFa) confuse modern parsers.

From an AI’s perspective, such pages are ambiguous.
And ambiguity is the opposite of authority.

How Geoleaper’s GEO Analysis Reveals Your AI Visibility

At Geoleaper, we built the GEO Analyzer to make this invisible layer visible.

Our system scans your entire site and checks:

  • How consistent your structured data is with visible content

  • Whether entities and relationships are properly defined

  • Which credibility signals (author, publisher, sameAs) are missing

  • How your schema compares to the “Golden Templates” of top-performing GEO pages

You get a GEO Score (1–100) — a real metric for AI visibility readiness.

In short, it shows what ChatGPT, Claude, and Perplexity see when they read your site.

How AI “Chooses” What to Include

When AI systems generate an answer, they run through a simplified version of this process:

  1. Query understanding — interpret user intent using semantic embeddings.

  2. Entity mapping — identify relevant known entities that match the query.

  3. Source retrieval — fetch data from credible, structured, and semantically clear sources.

  4. Synthesis — generate an answer by combining verified data and citations.

If your website provides structured, verifiable, entity-rich data, you make it into step 3.
If not — you never get considered.

This is why GEO isn’t a marketing gimmick — it’s the new foundation of discoverability.

How to Increase Your Chance of Being Cited

To make your website “AI-recommendable,” focus on:

Implementing complete schema markup (use JSON-LD and validate regularly)
Linking entities using sameAs, about, and mentions
Ensuring visible text and schema data match
Adding author and publisher metadata for credibility
Keeping data current — outdated or missing properties reduce trust

If you maintain this foundation — or better yet, automate it — your content stays visible, no matter how AI search evolves.

From Search Ranking to Recommendation Logic

We’ve entered the era of recommendation visibility.

In SEO, you optimized for algorithms.
In GEO, you optimize for understanding.

AI engines don’t reward clickbait or density — they reward semantic integrity.
They’re building a web that’s not sorted by keywords, but by knowledge.

The question isn’t “How do I rank?” anymore.
It’s “How do I become part of the answer?”