An AI workspace that doesn't sanitise your fiction.
Novel-length context, distraction-free editor, an AI that remembers your characters and your world. Built for the writers who actually finish.
Free to start · No credit card required
Most AI writing tools are designed for marketing copy. River was built for novels — the kind of writing where the AI needs to remember who your antagonist is, why your magic system works the way it does, and what tone you set in chapter one.
Long context, a real document editor, character and world memory, and uncensored models when your fiction demands it.
What you get
Novel-length context
100k+ word manuscripts in one Space. The AI keeps continuity across chapters without you re-pasting.
Character and world memory
Drop your character profiles and world bible into a Space. River uses them automatically in every draft.
Distraction-free editor
Clean writing surface, scene navigation, word-count goals. AI chat is one keystroke away when you want it.
Uncensored when you need it
Romance, violence, dark fiction — River does not refuse to help with fiction it considers 'edgy'.
Plot and continuity tools
Plot-hole finder, character relationship maps, timeline trackers — the tools that catch problems before your readers do.
Clean exports
Word, ePub, PDF, Markdown. Submit to agents, upload to KDP, post to your blog — your work, your platform.
From spark to manuscript
- 1
Start a Space for your story
Outline, character profiles, world bible, draft — all in one place.
- 2
Draft with an AI that knows your story
Ask for a scene, a character beat, a missing chapter. River uses your Space as context.
- 3
Edit, revise, export
Inline editing, version history, scene navigation, clean exports for agents and publishing platforms.
Frequently asked questions
Does it handle full novels?
Yes. River is designed for 100k+ word manuscripts. The long-context AI keeps continuity across chapters and remembers your characters across sessions.
Will it write in my voice?
Yes. River can read your past work to learn your voice and matches it when drafting new scenes. You stay the author; the AI helps.
Can I write dark / mature / morally complex fiction?
Yes. River uses uncensored models for fiction work and does not refuse violence, sex (between adults), dark themes, or morally complex characters.
What about plot continuity?
River includes a plot-hole finder, character relationship maps, and timeline trackers. The AI flags inconsistencies as you write instead of letting them slip through.