Best Practice

🗺️ ChatGPT, Perplexity, AI Overviews, Gemini: one GEO plan doesn't fit all four

The four big AI engines pull from different sources and reward different content — a 4-engine cheat-sheet plus the one prompt that shows which of them mentions you today, so you can pick one and act.

🎯 Why it matters

The four major AI answer engines do not read the web the same way: one favors encyclopedic writing, one leans on Reddit and video, one still runs on classic SEO, one is built on Google’s own ecosystem. This gives you a per-engine table and the prompt to find where you already show up.

💬 My take

One GEO plan doesn't fit all four engines

AI does the diagnosis here: ask each engine the same buyer question and it shows you, live, which sources it leans on. What it cannot do is the work each one rewards. That differs enough by engine that you should pick one and act, not spread thin.

Fastest path: one prompt, end to end

Run this in all four engines and compare who names you today:

🤖 AI prompt — paste into ChatGPT / Claude

You are auditing AI-answer visibility. I sell [PRODUCT/CATEGORY]. Web search ON.
1. Ask these 3 buyer questions: [Q1], [Q2], [Q3].
2. For each, record ONLY what actually appeared: is [MY BRAND] named? Which domains did you cite (with links)? What TYPE are they (Reddit / YouTube / review site / news / my own site)?
3. Output ONE table: Question | [MY BRAND] named? | Domains cited | Domain types.
Do not guess or invent domains. Record only what you genuinely cited this session. If you cannot browse, say so and stop.

Run it in ChatGPT, Perplexity, Google AI Mode, and Gemini separately. The differences ARE your playbook.

The four engines at a glance

Engine	What it leans on	What moves the needle	First action
ChatGPT	Web search built on Bing's index; encyclopedic sources	Clear, neutral "reference" writing with direct answers, quotes, named stats up front	Rewrite one flagship page in that tone
Perplexity	Real-time search, heavy on Reddit and YouTube; favors very recent posts	Genuine presence in category subreddits plus real video	Answer 3 real questions in a relevant subreddit this week
Google AI Overviews / AI Mode	Same ranking systems as classic Search, reaching well beyond page one	Technical SEO, schema, snippet-style formatting	Fix schema and snippet formatting on one page
Gemini	Google's own ecosystem: Search plus YouTube and Maps	Captioned, schema-marked YouTube; a complete Google Business Profile	Post one captioned YouTube video for a top buyer question

Or do it in 3 steps

Run the prompt; see which engine your buyers actually use and where you are weakest.
Pick the ONE engine that matters most to your category and do its "first action" this week. Do not spread across four.
Re-run the prompt in a month. Done = your "named? yes" count on that one engine went up.

The one number worth knowing (AI Overviews)

Google says AI Overviews use the same ranking systems as Search. But the overlap with the traditional top 10 has fallen sharply, from about 76% of citations in July 2025 to around 38% now (Ahrefs, 863K SERPs).

YouTube is now the single most-cited domain, including for pages that do not rank at all. Keep doing SEO, but do not assume a top-10 rank is the whole game.

Re-check quarterly. The source mix shifts monthly.

⚖️ Do & Don't

Do

Write ChatGPT-facing pages in a clear, structured, encyclopedic tone with direct answers, quotes, and named statistics up front — this measurably lifts generative-engine visibility.
Show up specifically (not promotionally) in category-relevant subreddits and publish real video content for Perplexity — it's the most Reddit-and-YouTube-weighted of the four.
Keep doing classic technical SEO and schema for Google AI Overviews — it draws on the same ranking systems Google has always used, even as it reaches further beyond the top 10 than before.
Invest in captioned, schema-marked YouTube video and keep Google Business Profile and Merchant Center feeds complete if Gemini visibility matters to your category.

Avoid

Don't optimize for only one engine and assume the tactics transfer — citation-source overlap between engines is low enough that a page that wins on Perplexity can be invisible to Google AI Overviews.
Don't assume today's source mix is permanent — one engine's reliance on Reddit and Wikipedia has swung by dozens of percentage points within weeks as it retunes.
Don't expect a click just because you're cited — research on AI-summary click behavior found visible links inside the summary get clicked in the low single digits of cases.
Don't treat Gemini as "just Google" — its multimodal grounding rewards different assets (video, Maps, Shopping feeds) than plain AI Overviews does.

💡 Quick tips

Quick per-engine test: ask the same 5 buyer questions in ChatGPT, Perplexity, Google AI Mode, and Gemini, and note which sources each one actually names — that's your real competitive map, not a generic guide.
If you can only chase one engine first, pick the one whose favored format (encyclopedic writing, Reddit/video, classic SEO, or multimodal) you're already closest to doing well.

🏢 Brand in focus

BrandCited across AI engines

NerdWallet — content built for every engine

Personal finance · Why it fits: NerdWallet's deep, structured, comparison-style content shows up across search and AI answers because it fits what each engine rewards — clear encyclopedic explainers, structured data, and topic authority. Did well: built a content library organized for machines and humans alike, so it gets pulled into answers on multiple engines. Watch-out: it is a huge editorial operation, not a quick tactic, and AI zero-click answers threaten the traffic model it was built on.

📚 Go deeper — resources

article

AI Overview citations: how much do they still overlap with the top 10

article

Why Reddit dominates ChatGPT, Perplexity, and Google AI Overviews

article

What is Generative Engine Optimization (GEO)

🏷️ Tags

geoai-searchmulti-engine

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