A content gap in retrieval is a situation where you have no passage for a specific question that the system could find and cite, even though you otherwise cover the topic. It typically arises where a company describes what it offers but does not answer what people actually ask: how much it costs, how long it takes, what is included in the price, who it is not suitable for, what happens with a complaint. You detect it by comparing two lists – a map of real questions from sales, support, and model testing, and the list of passages on your website. Every question without a corresponding passage is a gap. Fill them according to closeness to the decision, not according to search volume: a question about terms and price has a smaller volume than a general topic, but far greater value.
See also: Prompt research, Content chunking, Information gain.
