Definition
What this term means
An instance where an AI model references, quotes, or links to a specific source when generating its response. Model citations can appear as inline references, linked source lists, or attributed quotes, and they represent the AI equivalent of earning a backlink in traditional SEO. Platforms like Perplexity and Google's AI Overviews prominently display citations.
Why it matters
The business impact
Model citations are one of the primary ways AI-driven traffic reaches your website. A citation from a major AI platform carries significant trust weight with users and can drive high-intent visits. Brands that consistently earn citations build a compounding authority advantage, as AI systems learn to treat them as reliable sources for future queries.
Used in context
How you might use this term
“After implementing structured data and clear source attribution, a healthcare information site saw their model citation rate increase from 12% to 47% across Perplexity queries in their category, translating to a measurable increase in referral traffic from AI platforms.”
Related terms
Explore connected concepts
RAG
An AI architecture that combines real-time information retrieval with language generation. Instead of relying solely on pre-trained knowledge, RAG systems search external sources, such as websites, databases, or knowledge bases, to find relevant information before composing their response. This is the technology behind AI search tools like Perplexity and Google's AI Overviews.
Structured Data
Machine-readable code embedded in web pages that explicitly defines entities, attributes, and relationships using a standardised vocabulary. JSON-LD (JavaScript Object Notation for Linked Data) is the preferred format. It sits in a script tag on the page and tells AI systems exactly what the page is about: the organisation behind it, the author's credentials, the product details, the article's topic, and more.
Authority Signals
The collective evidence that demonstrates a brand's credibility, expertise, and trustworthiness to AI systems and search engines. Authority signals include expert authorship with verifiable credentials, citations from reputable sources, industry awards, professional certifications, longevity of domain, quality of backlink profile, and consistent representation across authoritative platforms such as Wikipedia, industry publications, and government databases.