Prosed

Prosed is a focused tool for anyone who has been creating content for years and suspects there's a book hiding in it. Instead of staring at a blank page, you paste links to your Substack, YouTube channel, LinkedIn posts, or podcast RSS feed — or drop in transcripts and notes. Prosed pulls everything together, transcribes audio and video automatically, and assembles the material into a complete manuscript. You don't write new words; you just hand over what you've already made.

The magic happens in a pipeline called The Inkwell, which was built by studying patterns from over 150 bestselling nonfiction books across five genres. It restructures your content, adds connective tissue, and matches your voice across every chapter. You get a private portal where you can read the manuscript, leave comments, request rewrites, and accept or reject suggestions. There's also a built-in AI editor called Typo that checks grammar, voice consistency, story flow, chapter cohesion, and brand alignment — every note links directly to the passage it's about. When you're done, you can export a print-ready PDF, ePub, or DOCX.

Prosed is a great fit for newsletter writers with hundreds of issues, podcasters who want a book from spoken episodes, bloggers with years of long-form posts, and experts who have deep knowledge but no time to write from scratch. It's not a generic AI book generator — it works from your existing material and keeps your voice intact. During the beta, it costs $47 per book (one-time, no subscription), and you keep 100% ownership. The tool is limited to the first 100 creators at that price.