Calliope
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote
NextLeaf — A Multimodal, Emotion-Aware Book Recommender NextLeaf understands natural-language and image-based queries to identify the content, mood, and reading experience a user is looking for. It combines semantic retrieval with emotional and literary experience traits to recommend books that match the reader's intent, going beyond conventional recommendations based on genre, popularity, or ratings. It doesn't just match what you search for; it understands what you want to experience.