Choose the Ottopen plan that fits your writing, revision, adaptation, and audiobook workflow — whether you are building a novel, business book, self-help guide, memoir, or audio-first project. Draft is a free private writing workspace. Studio is $20/month for AI writing, story and idea organization, revision, and adaptation tools. Audiobook Studio is $100/month for final chapter rendering, metered usage, downloads, and expiring audio delivery. Publisher pricing stays custom.
Private manuscript workspace for early drafts, chapters, notes, and book structure.
Draft is a free writing workspace. Voice auditions, previews, and chapter rendering begin on the Studio and Audiobook Studio plans.
Start freeAI writing, revision, continuity, story and idea organization, and adaptation tools.
Studio lets you hear how your manuscript performs. Final chapter rendering, downloads, and master export require Audiobook Studio.
Start StudioNarrated chapter audio, voice previews, rendering estimates, downloads, and audiobook export prep.
Final audio rendering uses metered usage credits — Ottopen shows the estimated cost before each render, and failed renders are not billed. New subscribers also receive a one-time 62,500-character narration credit added to their account on first activation, on top of the monthly included characters.
Start Audiobook StudioCustom workflows for teams, imprints, author services companies, and content studios.
Publisher workflows are custom and provisioned case by case.
Contact us| Feature | Draft | Studio | Audiobook Studio | Publisher | Status |
|---|---|---|---|---|---|
| Manuscript editor | Yes | Yes | Yes | Yes | Live |
| Chapters, scenes, notes | Yes | Yes | Yes | Yes | Live |
| Character bible / story memory | Yes | Yes | Yes | Yes | Live |
| Hosted AI writing support | No | Yes | Yes | Yes | Live |
| Continuity review | No | Yes | Yes | Yes | Live |
| Style and pacing suggestions | No | Yes | Yes | Yes | Live |
| Format Converter / Adaptation Studio | No | Yes | Yes | Yes | Live |
| Short voice previews | No | Limited | Yes | Custom | Limited |
| Playback-only test renders | No | Limited | Yes | Custom | Limited |
| Voice casting workflow | View only | Limited | Yes | Custom | Live |
| Chapter audio render queue | No | No | Yes | Custom | Live |
| Final audiobook rendering | No | No | Yes | Custom | Usage-billed |
| Signed playback and download | No | No | Yes | Custom | Live |
| Multi-lane audio editing | No | No | Coming soon | Custom | Coming soon |
| Team approvals | No | No | No | Custom | Custom |
Studio and Audiobook Studio include format conversion for scripts, treatments, outlines, pitches, query letters, back-cover copy, and narration plans. Identical chapter + target format reuses a cached draft instead of charging your premium credits again.
Restructures chapters into screenplay-style scenes with sluglines, action, and dialogue blocks.
Restructures into two-act stage format with stage directions, character cues, and dialogue.
Re-segments existing chapters into sections to support revision passes without changing the prose voice.
Creates a logline, synopsis, sequence beats, character engine, and visual set-piece notes.
Builds a series premise, pilot engine, act breaks, character arcs, and episode hooks.
Maps the manuscript into a series spine with one structured section per proposed episode.
Condenses premise, protagonist, stakes, escalation, and audience promise into a pitchable synopsis.
Drafts a standard query structure with opening, book pitch, stakes paragraph, bio placeholder, and close.
Produces retail-facing hook copy, conflict setup, tone notes, and alternate lines.
Creates narrator approach, character voice notes, pacing guidance, pronunciation flags, and production notes.
Audiobook Studio gives writers everything needed to turn a manuscript into chapter audio: cast voices, audition short takes, test longer passages, and start a final chapter render after Ottopen shows you the estimated cost. Finished chapters are stored privately and stream or download through expiring access links.
Multi-lane audio editing, team review and approvals, and advanced audiobook mastering are not shipped yet. The core writing-to-audio path — drafting, casting, previewing, rendering, and downloading chapters — is live for every Audiobook Studio subscriber today.
Yes. Audiobook Studio is the paid plan for writers who want to prepare and produce narrated chapter audio. Voice casting, previews, the render queue, and expiring playback/download links are all live.
Your Audiobook Studio subscription includes 25,000 finished characters each month and full access to the audiobook workflow. Additional final rendering is metered — Ottopen shows the estimated cost before each render, and you can purchase prepaid credit packs in-app.
Failed renders are not billed. You can adjust the chapter, voice, or settings and retry without paying again.
Yes. Completed chapter audio is available through private expiring playback and download links.
No. Ottopen does not sell your work or use your manuscript to train its own models. When you choose AI or audio features, selected text is sent to the relevant provider only to fulfill that request.
Yes. Draft is free and includes up to 3 active manuscripts, chapter and scene organization, character and note tracking, and manual drafting/editing.
An active manuscript is a project kept in your writing workspace and not deleted or archived. Draft accounts are capped at 3 active manuscripts.
Yes. Paid subscriptions are managed through account billing settings. Cancellation timing and renewal details are shown before you confirm changes.
Your manuscripts remain in your account. Paid features lock when the subscription ends, and the free active-manuscript limit may apply.
Yes, through the Publisher plan. Team workflow, onboarding, production support, security review, and volume pricing are handled as custom workflows.