What is Factual Density?
Factual Density measures how many verifiable facts your content contains per 100 words. Think of it as a simple count: every number, percentage, date, named organization, and research reference in your text adds to the total. AI engines like ChatGPT, Perplexity, and Google AI Overviews strongly prefer content packed with these data points. The Princeton/Georgia Tech GEO study (KDD 2024) found that adding statistics to content improved AI visibility by 41% ā one of the largest single-technique gains measured across 10,000 queries.
This metric is part of the Content Quality pillar in your GEO-Score. The analyzer counts six categories of verifiable data: numbers, percentages, dates, currencies, measurements, and named entities. The target is 3 or more facts per 100 words ā roughly one specific data point every 2-3 sentences.
Why This Matters for AI Search
AI engines do not read your content like a human browsing a blog post. They scan it for extractable, verifiable information they can confidently include in their answers. Content without facts gives them nothing to work with.
AI evaluates content, not domains
Unlike traditional SEO where domain authority matters most, AI engines evaluate trustworthiness at the content level. A page on a small website with 8 facts per 100 words can outrank a big brand's vague blog post. A 2025-2026 citation factors study found domain authority only contributed +8% citation lift, while factual density contributed +27%.
Facts are extraction anchor points
When AI generates an answer, it looks for specific data points it can quote or paraphrase. Each fact in your content is a potential anchor point. Pages with high factual density give AI multiple extraction opportunities per paragraph, increasing the chance at least one fact gets cited.
Dated facts signal freshness
Research shows 85% of facts in AI-cited content include specific dates or timeframes. Adding "In Q1 2026" or "A January 2025 study found" tells the AI your information is current. AI engines deprioritize content with undated or outdated claims ā 95% of ChatGPT citations come from content published or updated within 10 months.