Discussion Fundamentals AI Search

What exactly are generative engines? How are they different from Google?

TE
Terminology_Confused · Digital Marketer
· · 124 upvotes · 12 comments
TC
Terminology_Confused
Digital Marketer · December 18, 2025

I keep hearing “generative engines” and I’m not sure what this means exactly.

My confusion:

  • Is ChatGPT a generative engine?
  • Is it just a fancy term for AI chatbots?
  • How is this different from Google with AI Overviews?
  • Why does this matter for marketing?

What I think I know:

  • They generate answers instead of showing links
  • Multiple platforms: ChatGPT, Perplexity, etc.
  • Something about being “cited” instead of “ranked”

Can someone explain this clearly? The jargon is overwhelming.

12 comments

12 Comments

CE
Clear_Explainer Expert AI Strategy Lead · December 18, 2025

Let me break this down simply:

What is a generative engine?

A search system that CREATES answers instead of FINDING webpages.

The key difference:

Traditional Search (Google)Generative Engine (ChatGPT)
You searchYou ask
Returns list of linksReturns an answer
You click and readYou read the answer directly
Ranks existing pagesGenerates new text
Shows sources as linksMay cite sources within answer

Simple analogy:

Traditional search = Library card catalog “Here are books that might answer your question. Go find them.”

Generative engine = Librarian who reads everything “Based on what I’ve read, here’s the answer to your question.”

Why “generative”?

Because these systems GENERATE new text. They don’t just retrieve - they create.

The main generative engines:

  • ChatGPT (OpenAI)
  • Perplexity
  • Claude (Anthropic)
  • Google Gemini
  • Microsoft Copilot
  • Google AI Overview (in Google Search)
MI
Marketing_Implications Marketing Director · December 18, 2025
Replying to Clear_Explainer

Now let me explain why marketers care:

The fundamental shift:

Traditional SEOGenerative Engine Optimization
Rank on page 1Be cited in the answer
Get clicksGet mentioned
Compete for rankingCompete for citation
10 spots on page 13-5 sources cited

Why this matters:

  1. Fewer opportunities - Instead of 10 ranking positions, there are 3-5 citation spots
  2. Direct answers reduce clicks - Users may not visit your site
  3. But citations build authority - Being cited = trusted source
  4. New metrics needed - Not just rankings, but citation tracking

The marketing opportunity:

If you’re cited by AI when users ask questions, you’re influencing millions of decisions without them ever visiting your website.

That’s why we care.

PB
Platform_Breakdown AI Analyst · December 17, 2025

Let me break down the major generative engines:

ChatGPT

  • Largest user base (~2.5B queries/day)
  • General purpose
  • Has browsing mode for current info
  • Training data has cutoff dates

Perplexity

  • Purpose-built for search
  • Always cites sources with links
  • Real-time web access
  • Fastest growing

Google AI Overview

  • Built into Google search
  • Appears above regular results
  • Uses Google’s index
  • 60%+ of searches now show this

Claude

  • Known for reasoning and analysis
  • No real-time search (yet)
  • Popular for complex questions
  • Training data based

Microsoft Copilot

  • Powered by GPT
  • Integrated with Microsoft products
  • Uses Bing for web access

For marketing: You should care about all of them, but prioritize:

  1. Google AI Overview (most reach)
  2. ChatGPT (largest AI user base)
  3. Perplexity (fastest growing, best citations)
PD
Practical_Differences · December 17, 2025

Here’s what makes each platform different for your content:

Google AI Overview:

  • Uses Google’s existing index
  • If you rank well on Google, you may appear here
  • Traditional SEO strongly influences visibility

ChatGPT:

  • Training data (historical) + web search (current)
  • Your content needs to be in training OR findable via Bing
  • Brand recognition matters

Perplexity:

  • Real-time web crawling
  • Cites sources prominently
  • Fresh content can appear quickly
  • Most transparent about sources

Claude:

  • Training data only
  • Focuses on quality and accuracy
  • Good for complex, nuanced questions

What this means for optimization:

PlatformWhat Matters Most
Google AI OverviewGoogle rankings, structured content
ChatGPTAuthority, brand recognition, Bing visibility
PerplexityFresh content, clear answers, citations
ClaudeQuality, depth, training data inclusion

The universal factors: Quality, clarity, and authority help across all platforms.

RW
Real_World_Example Content Lead · December 17, 2025

Let me show the difference with a real example:

Query: “Best project management tools for small teams”

Traditional Google:

  • 10 organic results
  • Maybe featured snippet
  • Ads at top
  • You click through to compare

ChatGPT: “For small teams, I recommend considering [Tool A], [Tool B], and [Tool C]. [Tool A] is great for simplicity with features like… [Tool B] excels at… Based on your team size, [Tool C] might be best because…”

Perplexity: Similar synthesized answer but with:

  • [1] Source citation
  • [2] Another source
  • Links visible, clickable

Google AI Overview: At the top of Google results: “Based on various sources, the best project management tools for small teams include…” Then regular results below.

The user experience difference: Traditional: Browse 5-10 sites to compare Generative: Get a synthesis immediately, maybe click one source

Marketing implication: In generative engines, you’re either cited or invisible. There’s no “page 2.”

TC
Terminology_Confused OP Digital Marketer · December 16, 2025

This makes total sense now. My understanding:

Generative engines = AI systems that CREATE answers

The main ones:

  • ChatGPT - Biggest user base
  • Perplexity - Best for citations, fastest growing
  • Google AI Overview - Built into Google, most reach
  • Claude - Good for complex questions

How they differ from traditional search:

  • Generate answers vs. rank links
  • Cite 3-5 sources vs. show 10 results
  • Users get answers vs. users click and find answers

Why this matters for marketing:

  • Need to be cited, not just ranked
  • Fewer opportunities (3-5 citations vs. 10 rankings)
  • Brand authority matters more
  • Need to track visibility across platforms

My next steps:

  1. Check visibility in each platform (Am I Cited)
  2. Understand which platforms matter for our audience
  3. Optimize content to be citation-worthy

No longer confused. Thanks everyone!

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Frequently Asked Questions

What is a generative engine?
A generative engine is an AI-powered search system that creates direct answers instead of returning links. Unlike Google which ranks and presents webpages, generative engines like ChatGPT and Perplexity synthesize information from multiple sources to generate conversational responses.
How are generative engines different from traditional search?
Traditional search engines rank and display links to webpages. Generative engines generate original responses by synthesizing information. Instead of showing 10 blue links, they provide a direct answer that may cite sources. The user gets an answer, not a list of places to find answers.
Which generative engines should I care about?
The main ones are ChatGPT (largest user base), Perplexity (fastest growing, best at citations), Google AI Overview (built into Google search), and Claude (popular for complex questions). Each has different characteristics but all generate answers rather than just ranking links.
Do generative engines replace traditional search?
Not entirely - they complement it. Many users start with AI for quick answers, then verify with traditional search. Some queries are better suited to links (shopping, local, current events). The relationship is symbiotic, not replacement.

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