Short definition
Generated search summaries are answer panels that summarize information from multiple sources and may link to supporting pages.
In depth
Generated search summaries draw from indexed pages and trusted sources. For a publisher this means pages need clear answers, accurate schema, factual statements with sources, and topical depth. The same quality rules that help buyers also help automated systems understand what the page says.
Example
A pricing query shows a generated summary with several source links. The clearest pages state the range, assumptions, and examples plainly.