Implementations are described herein for hierarchical interfaces for
screen reader users (SRUs). In various implementations, a first subtree of leaf nodes of a hierarchical
data structure may be populated with content extracted or otherwise derived from
digital content item(s), which may or may not be responsive to a search query.
Generative model(s) may be used to process the content of the first subtree of leaf nodes to generate a first summary of the content used to populate the first subtree of leaf nodes. A first
branch node above the subtree of leaf nodes may be populated with the first summary. The
generative model(s) may be used to process first summary and a second summary to generate second tier output that includes a third summary of the first and second summaries. A
screen reader interface may be provided and may be operable to facilitate navigation of the hierarchical
data structure.