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`Book by the People`.

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

`Book by the People`. — Demo video

Book by the People turns thousands of real voices into one beautiful book, plus an audiobook and a video book, all made with Meta's models. The problem: when millions of people share opinions online, the voices get lost in endless comments and feeds. Nobody reads them all, and nothing lasting is made from them. Communities, creators, teachers and organisations have no simple way to collect what many people really think and turn it into something people want to read. How it works: a creator asks one question, like "What small joy got you through this year?" Anyone, anywhere, can answer by speaking or writing in their own language. Speech is turned into text privately in the browser, and Muse Spark translates every answer into the book's language. A live 3D globe shows each voice as it arrives. When the book closes, Muse Spark reads every contribution, groups similar opinions with real counts ("212 people said…"), decides the structure and story arc, and writes one smooth, documentary-style book in a single narrator voice. It names standout contributors and finishes with an editor pass. With one click the creator gets: - an audiobook narrated by Meta's open-weights MMS-TTS voice (11 languages), mastered to broadcast loudness; - a video book illustrated by Muse Image, quality-checked by Muse Spark vision, with an opening scene showing every participating country's flag, captions, and smooth transitions. Creators bring their own Meta API key (encrypted, never shown again), so the app is free. A full 92-voice book with audiobook and video book costs about $0.40 to make, and the pipeline scales to thousands of voices.

Team