AI Search Foundations

AI Search Foundations

The mechanics behind why AI engines cite some brands and ignore others.

Three engines. Three citation systems. One job: figure out who gets recommended when a real buyer asks a real question. This is the research arm of TWT — primary testing, methodology, and patterns we’ve documented across industrial verticals.

ChatGPT
Citation-light, narrative-heavy, defaults YouTube to UGC
Perplexity
Inline citations, rewards LinkedIn posts and PDFs
Gemini
Injects Shopping results, surfaces Google AI Overviews

Most “AEO” advice is recycled SEO with a new label.

The ranking factors actually look different. AI engines aren’t crawling and ranking; they’re retrieving and synthesizing. That means structured product specs beat keyword density. Specific quantified claims beat hedge phrases. Owned PDFs hosted by your distributor get cited — not your brand site.

Everything below is observation and testing, not theory. We track citations across ChatGPT, Perplexity, and Gemini for industrial brands, document the patterns, and publish the methodology. If a finding doesn’t replicate across the three engines, it doesn’t ship.

The three optimization layers, defined.

A working glossary so the rest of the site has shared vocabulary. These aren’t competing strategies — they stack.

SEO
Search Engine Optimization

Get found in traditional results.

The original game: keywords, backlinks, technical SEO, ranking in the 10 blue links. Still matters — AI engines cite ranked pages disproportionately.

AEO
Answer Engine Optimization

Get cited in direct answers.

Optimize for the moment a user asks ChatGPT or Perplexity a question and gets a synthesized answer. Structure, specificity, and entity clarity drive citation.

GEO
Generative Engine Optimization

Shape what AI says about you.

Influence the narrative, not just the citation. Includes Google AI Overviews, brand-mention frequency, and the language AI uses to describe your category.

Want to see what AI says about your brand right now?

We run the same citation tests on your category that we use in published research. You get a written report — what cites you, what doesn’t, and what to fix first.

Request a free visibility review →