Wikipedia Drives 13% of ChatGPT Citations (Most Brand Audits Skip It)
Wikipedia supplies roughly 13.15% of ChatGPT citations in the US, and 26% to 48% of the top-10 citation share, according to the 5W AI Platform Citation Source Index 2026. A single outdated paragraph about a brand can then propagate into AI Overviews, Perplexity, and Claude for years. Most reputation