Which website does AI cite most often?

Wikipedia dominates AI citations, capturing approximately 17% of all references across ChatGPT, Claude, Gemini, and other AI models. The remaining citations are spread across 60,000+ other domains in a power law distribution.

How many sources do AI models cite?

Our analysis of 1.3M+ AI citations found over 60,000 unique domains cited. However, citation frequency follows a power law - a small number of authoritative sites receive the vast majority of citations while the long tail competes for the rest.

Does Reddit get cited by AI?

Reddit accounts for a meaningful but often overstated share of AI citations. Direct Reddit citations are concentrated in comparison and best-of queries rather than factual or informational ones - a pattern we call the Reddit Paradox.

Research

Isometric illustration of a magnifying glass analyzing data patterns

Study 001

Where AI Gets Its Answers

An analysis of citation patterns across AI-generated responses. Which sources do AI systems trust? Which domains appear most frequently? Explore the data.

[01]

Key Findings

/ What the Data Reveals

[02]

Source Trends

/ Over Time

[03]

The Power Law

/ Distribution

Citation frequency follows a power law distribution. Wikipedia dominates at ~17%, while the long tail contains 60,000+ domains competing for the remaining citations.

[04]

The Reddit Paradox

/ Myth vs Reality

The Missing Giant

Reference

18.4%

Wikipedia, Investopedia

Social

1.0%

Reddit, LinkedIn

0×more citations

The great overestimation

Search "Reddit AI citations" and you'll find endless threads claiming it's the secret to LLM visibility. Marketers obsess over Reddit strategy. SEO forums debate the best subreddits to target. The assumption: Reddit must be a major citation source.

The data tells a different story. Social platforms account for just 1% of AI citations. Reference sites like Wikipedia dominate because they're structured for extraction - clear definitions, consistent formatting, and authoritative tone. The Reddit hype is mostly that: hype.

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