Technical documentation is a highly undervalued asset for AI search visibility (GEO). AI engines use retrieval-augmented generation and cite only 2–7 sources per response, strongly favoring specific, factual, structured content — exactly what good documentation provides. Most companies treat docs as a cost center, but in the AI search era, public, well-structured documentation directly answers the high-intent buyer questions AI engines are asked. Key recommendations include making docs publicly accessible, answering questions directly near the top, being specific and factual, covering compatibility and comparison queries, keeping content current, and structuring for both humans and machines. Companies that invest in documentation as a GEO asset gain a competitive edge while rivals focus on content marketing.