--- title: "User-Generated Content in AI: 27.8% of AI Overview Sources" url: https://www.suffdigital.com/resources/data-studies/user-generated-content-ai-sources description: "User-generated content in AI answers: 27.8% of Google AI Overview citations point to sites like YouTube and Reddit, against 0.2% for ChatGPT. See the data." lang: en --- Share Share on X: https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fuser-generated-content-ai-sources&text=Google%20AI%20Overviews%20Cite%20User-Generated%20Content%2027.8%25%20of%20the%20Time%20vs%200.2%25%20for%20ChatGPT Share on Facebook: https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fuser-generated-content-ai-sources Share on LinkedIn: https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fuser-generated-content-ai-sources Share on Reddit: https://www.reddit.com/submit?url=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fuser-generated-content-ai-sources&title=Google%20AI%20Overviews%20Cite%20User-Generated%20Content%2027.8%25%20of%20the%20Time%20vs%200.2%25%20for%20ChatGPT **27.8%** of the sources in Google's AI Overviews are user-generated platforms such as YouTube, Facebook and Reddit, against 0.2% of ChatGPT's sources. Across five AI engines, about one citation in eight is user-generated, and most of it is video and social media, not forums. Analysis of 164,629 cited URLs · answers from ChatGPT, Gemini, Perplexity and Google's AI features, September 2026 ## Key Findings 1. 1. **27.8%** of citations in Google AI Overviews point to user-generated platforms, against 0.2% of ChatGPT citations. Copy stat 2. 2. Google AI Mode draws **23%** of its citations from user-generated platforms, more than five times Gemini's 4.2% and Perplexity's 2.9%. Copy stat 3. 3. About **13%** of citations in AI answers point to user-generated platforms: social and video sites, forums and Q&A sites, and blog platforms. Copy stat 4. 4. Social and video sites such as YouTube and Facebook receive **9.7%** of AI citations, while forums and Q&A sites such as Reddit and Quora receive 2.8%. Copy stat 5. 5. YouTube receives **12,857** citations in AI answers, 12,056 of them from Google AI Overviews and Google AI Mode. Copy stat ## Summary Ask Google how to fix a squeaky door and the AI Overview at the top of the results will often point you to a YouTube video, a Facebook post or a Reddit thread. Ask ChatGPT the same question and its sources are almost all publishers, companies and official bodies. The two engines trust very different kinds of voices. That split decides where a business should invest. User-generated platforms are open to anyone: you can post a video or join a discussion tomorrow. If an engine cites them heavily, a good video or an active community presence is a direct route into its answers. If it ignores them, only your own pages and press coverage count. The gap is enormous. **27.8%** of Google AI Overview citations and 23% of Google AI Mode citations point to user-generated platforms, against 0.2% of ChatGPT's. Across all five engines, about one citation in eight is user-generated, and most of that is YouTube and social media rather than forums. ## What we measured In September 2026 we asked 2,984 general questions to ChatGPT, Gemini, Perplexity and Google AI Mode, along with the Google AI Overviews shown for the same questions. We recorded every unique web address cited in the answers, 164,629 in all, and classified each one as user-generated or not. A citation is user-generated when it points to a platform where the content is written by users rather than by the site's owner, in three groups: social and video sites (YouTube, Facebook, TikTok and others), forums and Q&A sites (Reddit, Quora, Stack Exchange) and blog platforms (Medium, Substack, Blogspot). Every figure is a share of citations, overall and for each engine. ## Google's AI features take a quarter of their sources from users 27.8% of citations in Google AI Overviews point to user-generated platforms. Google AI Mode is close behind at 23%. In both, most of the user content is video and social: 22.8% of AI Overview citations and 18.3% of AI Mode citations go to social and video sites, while forums and Q&A sites take 4.7% and 4.6%. Every other engine sits far lower. Gemini draws 4.2% of its citations from user platforms, Perplexity 2.9% and ChatGPT 0.2%, about one citation in 400. User-generated share of citations by engine Google AI Overviews 27.8% Google AI Mode 23% Gemini 4.2% Perplexity 2.9% ChatGPT 0.2% Source: Suff Digital analysis of 164,629 cited URLs · answers from ChatGPT, Gemini, Perplexity and Google's AI features, September 2026 The split is a Google search habit, not a Google habit: Gemini, Google's chatbot, cites user platforms less than one-fifth as often as the AI features built into Google Search. The AI Overviews and AI Mode answers look like Google results pages, where video and forum threads already rank well. ChatGPT, at the other extreme, answers from publishers and official sources almost exclusively. | Engine | Social and video | Forums and Q&A | Blog platforms | | --- | --- | --- | --- | | Google AI Overviews | 22.8% | 4.7% | 0.2% | | Google AI Mode | 18.3% | 4.6% | 0.2% | | Gemini | 1% | 2.8% | 0.4% | | Perplexity | 1.5% | 1.3% | 0.1% | | ChatGPT | 0.1% | 0.2% | 0.01% | ## One AI citation in eight comes from a user platform Across all five engines, about 13% of citations point to user-generated platforms. Social and video sites, led by YouTube, make up 9.7% of all citations. Forums and Q&A sites, including Reddit, Quora and Stack Exchange, make up 2.8%. Blog platforms such as Medium and Substack are nearly absent at 0.2%. Share of AI citations by type of platform Social and video 9.7% Forums and Q&A 2.8% Blog platforms 0.2% Leave out social and video and the user-generated share falls to 3%. The popular picture of AI answers built on forum threads fits Google's AI features better than the rest, and even there video carries the weight: forums and Q&A take under 5% of citations on every engine. ## YouTube and Facebook drive the user-generated share Two platforms supply most user-generated citations. YouTube receives 12,857 citations across the five engines, 12,056 of them from Google AI Overviews and Google AI Mode. Facebook receives 1,721, with 1,680 from the two Google features and one from ChatGPT. Reddit, the best-known forum, receives 3,471 citations, which makes it the third most-cited website overall. Yet forums as a group make up 2.8% of all citations, less than a third of the share of social and video sites. For most businesses, the user-generated platform that matters for AI is the one they can publish on directly: YouTube. ## What this means for marketers and community managers If Google's AI features matter to your customers, treat video and social content as search content. A clear YouTube video that answers a common question in your category, and an active, helpful presence where your customers discuss it, can become one of the sources Google's AI cites. Title and describe videos with the exact questions people ask. For ChatGPT, user-generated content barely registers. Its answers rest on publishers, companies and official sources, so coverage in respected publications and authoritative pages on your own site carry the weight. Most businesses need both routes, which is why an ai seo company (https://www.suffdigital.com/seo/ai-seo-services) plans content for each kind of engine and tracks which sources each one cites in your category. ## Embed this research Paste this on your site to embed the charts. It links back to the source automatically.

Source: Google AI Overviews Cite User-Generated Content 27.8% of the Time vs 0.2% for ChatGPT - Suff Digital

## Cite this study APA Suff Digital. (2026). Google AI Overviews Cite User-Generated Content 27.8% of the Time vs 0.2% for ChatGPT. https://www.suffdigital.com/resources/data-studies/user-generated-content-ai-sources Plain link Google AI Overviews Cite User-Generated Content 27.8% of the Time vs 0.2% for ChatGPT - Suff Digital - https://www.suffdigital.com/resources/data-studies/user-generated-content-ai-sources ## Frequently asked questions ### How much of AI's sources are user-generated content? ### Which AI engine cites user-generated content the most? ### How often does AI cite forums like Reddit or Quora? ### Does ChatGPT cite YouTube or Reddit? ## Related studies - AI SEO Google's AI Overviews Cite Reddit 176x More Often Than ChatGPT: https://www.suffdigital.com/resources/data-studies/reddit-citations-ai-answers - AI SEO 54.9% of Google's AI Overviews Cite at Least One YouTube Video: https://www.suffdigital.com/resources/data-studies/youtube-share-ai-overview-sources - AI SEO YouTube Tops AI Citations: Google's AI Cites It 6,894 Times vs 5 for ChatGPT: https://www.suffdigital.com/resources/data-studies/top-cited-websites-in-ai - AI SEO Google AI Overviews Are Mostly Bullet Points 89% of the Time vs 37.5% for ChatGPT: https://www.suffdigital.com/resources/data-studies/ai-answers-mostly-bullet-lists ## Structured data ```json [ { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://www.suffdigital.com/#organization", "name": "Suff Digital", "alternateName": "Suff Digital Marketing", "url": "https://www.suffdigital.com/", "logo": { "@type": "ImageObject", "@id": "https://www.suffdigital.com/#logo", "url": "https://www.suffdigital.com/logo.png", "contentUrl": "https://www.suffdigital.com/logo.png", "caption": "Suff Digital" }, "image": { "@id": "https://www.suffdigital.com/#logo" }, "description": "Suff Digital is a full-stack digital marketing agency that turns websites into predictable revenue engines, SEO, paid media, content, CRO, and web design built around revenue, not vanity metrics.", "slogan": "Digital marketing built for what's next.", "email": "hello@suffdigital.com", "telephone": "+1-629-236-0099", "foundingDate": "2022", "founder": { "@type": "Person", "name": "Matt Suffoletto", "jobTitle": "Founder & CEO" }, "contactPoint": [ { "@type": "ContactPoint", "telephone": "+1-629-236-0099", "email": "hello@suffdigital.com", "contactType": "sales", "areaServed": "US", "availableLanguage": [ "en" ] } ], "address": { "@type": "PostalAddress", "addressLocality": "Nashville", "addressRegion": "TN", "postalCode": "37219", "addressCountry": "US" }, "areaServed": { "@type": "Country", "name": "United States" }, "sameAs": [ "https://www.linkedin.com/company/suff-digital/", "https://www.instagram.com/suffdigital/", "https://www.youtube.com/@suffdigitalmarketing", "https://www.tiktok.com/@suffdigital" ], "knowsAbout": [ "Search Engine Optimization", "Pay-Per-Click Advertising", "Paid Social Advertising", "Conversion Rate Optimization", "Web Design", "Digital PR", "Link Building", "Website Migration", "Website Maintenance and Support", "Technical SEO", "Local SEO", "AI Search Optimization" ], "hasOfferCatalog": { "@type": "OfferCatalog", "name": "Suff Digital Services", "itemListElement": [ { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Search Engine Optimization (SEO)", "url": "https://www.suffdigital.com/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Pay-Per-Click (PPC) Advertising", "url": "https://www.suffdigital.com/services/ppc" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Paid Social Advertising", "url": "https://www.suffdigital.com/services/paid-social" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Conversion Rate Optimization (CRO)", "url": "https://www.suffdigital.com/services/cro" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Web Design", "url": "https://www.suffdigital.com/services/web-design" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Digital PR & Link Building", "url": "https://www.suffdigital.com/services/digital-pr" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Website Migration", "url": "https://www.suffdigital.com/services/website-migration" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Website Maintenance & Support", "url": "https://www.suffdigital.com/services/website-maintenance" } } ] } }, { "@type": "WebSite", "@id": "https://www.suffdigital.com/#website", "url": "https://www.suffdigital.com/", "name": "Suff Digital", "inLanguage": "en-US", "publisher": { "@id": "https://www.suffdigital.com/#organization" } } ] }, { "@context": "https://schema.org", "@graph": [ { "@type": "Article", "@id": "https://www.suffdigital.com/resources/data-studies/user-generated-content-ai-sources#article", "headline": "Google AI Overviews Cite User-Generated Content 27.8% of the Time vs 0.2% for ChatGPT", "description": "27.8% of the sources in Google's AI Overviews are user-generated platforms such as YouTube, Facebook and Reddit, against 0.2% of ChatGPT's sources. 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Across five AI engines, about one citation in eight is user-generated, and most of it is video and social media, not forums.", "url": "https://www.suffdigital.com/resources/data-studies/user-generated-content-ai-sources", "creator": { "@id": "https://www.suffdigital.com/#organization" }, "datePublished": "2026-09-24", "dateModified": "2026-09-24", "license": "https://creativecommons.org/licenses/by/4.0/", "isAccessibleForFree": true, "measurementTechnique": "Answers from ChatGPT, Gemini, Perplexity, Google AI Mode and Google AI Overviews" }, { "@type": "FAQPage", "@id": "https://www.suffdigital.com/resources/data-studies/user-generated-content-ai-sources#faq", "mainEntity": [ { "@type": "Question", "name": "How much of AI's sources are user-generated content?", "acceptedAnswer": { "@type": "Answer", "text": "About 13% of citations in answers from ChatGPT, Gemini, Perplexity and Google's AI features point to user-generated platforms, mostly YouTube and social media (September 2026)." } }, { "@type": "Question", "name": "Which AI engine cites user-generated content the most?", "acceptedAnswer": { "@type": "Answer", "text": "Google AI Overviews, where 27.8% of citations point to user-generated platforms, followed by Google AI Mode at 23%. ChatGPT is the lowest at 0.2%." } }, { "@type": "Question", "name": "How often does AI cite forums like Reddit or Quora?", "acceptedAnswer": { "@type": "Answer", "text": "Forums and Q&A sites such as Reddit, Quora and Stack Exchange receive 2.8% of citations in AI answers, against 9.7% for social and video sites." } }, { "@type": "Question", "name": "Does ChatGPT cite YouTube or Reddit?", "acceptedAnswer": { "@type": "Answer", "text": "Almost never. 0.2% of ChatGPT citations point to user-generated platforms, and ChatGPT cites facebook.com once across 2,984 general questions." } } ] } ] } ] ```