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VidBook
Winner — OpenAI × Outskill AI Builders Hackathon 2026

The AI publishing studio for long-form knowledge.

VidBook turns YouTube caption files, permitted transcripts, documents and book ideas into editable guides, lead magnets and book drafts. It gives creators a starting point for repurposing material they already own while keeping final editorial and publishing decisions in their hands.

Why VidBook exists

A coach may have a useful workshop, a teacher a recorded lesson, or a podcaster an interview worth revisiting. Turning that material into a guide takes decisions about structure, facts, examples and what the reader needs. VidBook supplies a draft and editing tools; the creator still makes those decisions.

Start with the caption file you download from YouTube Studio, a pasted transcript, a permitted .txt, DOCX or text PDF, or a book idea that VidBook researches first. The pipeline assigns source chunks to chapters, generates an editable draft, and renders PDF, EPUB, and DOCX files. Grounding reduces drift but does not eliminate model errors, so authors must verify facts, quotations, permissions, voice, and layout before publishing.

The grounded pipeline

An outline maps source sections to chapters. The writer receives the assigned source chunks and summaries of preceding chapters. Validated results are checkpointed so a completed step can be recovered without writing it again. Source-review suggestions remain advisory; they do not certify facts, permissions or editorial quality.

We picked this architecture to split a long-form task into smaller, reviewable stages. Each chapter receives scoped source context and can be edited in the product. The architecture does not make an AI draft automatically accurate or publishable; it makes the draft easier to trace back to the source and revise.

The hackathon

VidBook was built during the OpenAI × Outskill AI Builders Hackathon 2026 and was a winner. The announcement is on LinkedIn. Find VidBook at vidbook.co for creators working with long-form recorded material.

What the workflow includes

You can draft and edit chapters, generate AI front covers with no people or animals, download a free full-wrap paperback cover, prepare a listing kit, run an advisory compliance review and export PDF, EPUB or DOCX. Market Scout suggests book ideas with AI-estimated scores, not sales data, and you can also make coloring books. VidBook does not submit books to stores, transcribe videos without captions, operate your course or email platform, or guarantee sales. Check each store's requirements before distributing a book.

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