Write your novel, not prompts
Bring your notes — a team of AI agents turns them into the world of your novel, works out the plot and writes the chapters. After every scene the characters and the world update themselves.
Works with your own subscription
- Claude Code Opus 5, Fable 5, Sonnet 5
- Codex GPT-5.6 Sol, Terra, Luna
- Antigravity Gemini 3.6 Flash, Gemini 3.1 Pro
- Grok Build Grok 4.5
- OpenRouter over 300 models: DeepSeek, Qwen, Kimi, Mistral, Llama
You have the idea. Not the book.
It happens to almost everyone who takes on long fiction.
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The idea has been with you for months
You know your hero. Two or three scenes are so clear you could swear you have read them. You know how it ends.
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The notes keep piling up
A notebook, a folder of files, a thought typed at two in the morning. Plenty written down — nothing written.
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And there is nowhere to start
Chapter one? The world? A plan? Every time it turns out something else has to come first.
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If anything, there are too many ideas
Three ways the story could turn, and all of them are good. You cannot choose: there is no telling where each one leads.
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AI helps for exactly one scene
Then you explain all over again who Marta is, what happened in chapter three and why she still has not forgiven him.
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What is missing is not talent. It is order.
Where to begin, what comes next, how not to lose what you invented — PromptyFlow takes that on.
How a novel is born
From a folder of notes to finished chapters. Every stage can be done by you or handed to the agents.
- 01
Your notes
Drop in everything you already have: ideas, fragments, notes. Nothing is thrown away.
- 02
The novel bible
The foundation is built from them: who the book is for, genre and style, characters, locations, lore.
MartaThe bridgeGenre - 03
The style guide
A test scene is written exactly like a real one. You read it, say what feels wrong, and the style guide adjusts to you.
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Plot and simulation
The idea turns into a scene plan. Unsure about a turn? Play it out: you move as your hero, the world responds.
- 05
The scenes get written
The agents write scene after scene by the plan. Dislike a passage? Mark it — only that part is rewritten.
- 06
The world catches up
After every accepted scene, characters, locations and lore update without you lifting a finger.
MartaPlacesChronicle
The last two steps repeat with every scene.
Three ways to run your novel
A mode is not a pricing tier or a one-time choice. Switch whenever you like — even in the middle of the book.
- No plan
Free mode
No plan, and none needed. Write scene by scene; when you hesitate, talk the turn through with the agents on the spot and move on.
For writers who feel their way
- Shared
By plan
Map the novel first, then write it. Deepen or rewrite the plan at any point — the agents pick up the change and carry the story on without contradictions.
For long stories and series
- Automatic
On autopilot
Shape the world and the plot — the agents then write the entire novel, scene after scene. You read finished chapters and step in whenever you want.
When the idea is already whole
The novel stays coherent in every mode: the world updates itself after each scene.
The world updates itself
The most exhausting part of a long book is remembering what changed. Once a scene is accepted, everything is rebuilt for you.
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Scene summary
What happened, with no filler. The next scene leans on this, not on the whole text.
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Characters
Every character card is brought to their state at the end of the scene: what they now know, want, have lost.
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Locations
Places change with the story — a burned house stays burned.
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Lore and chronicle
New facts become canon, events line up into one chronicle. Contradictions show up immediately.
That is why on scene fifty the agents remember the novel as precisely as on scene one.
Why this is not another chat window
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Your subscription, your advantage
PromptyFlow runs on the AI subscription you already pay for. We add no markup on models. A small app called PromptyFlow Bridge installs in one click and puts that subscription to work on your novel.
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Not one chat — a team
Concept, plan, prose and review are different roles. Each agent does its part and hands over.
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The text stays yours
The manuscript is entirely yours — during the work and after it.
AI writes the lines. You write the novel.
What it costs
Free
while the closed alpha runs
- Every capability, no limits
- You pay for models through your own subscription, not to us
- Post-alpha pricing announced in advance
The short answers
Do I need to be technical?
No. One-click install, then an ordinary window in your browser.
Which AI does it use?
Yours. Connect the subscription you already use: Claude Code (Opus 5, Fable 5), Codex (GPT-5.6 Sol), Antigravity (Gemini 3.6 Flash), Grok Build (Grok 4.5) or OpenRouter — over three hundred models there, including DeepSeek, Qwen and Kimi.
Will the AI write instead of me?
Only what you asked for. Nothing enters the novel without your approval.
What if I change my mind?
Any scene can be rewritten or rejected — as many times as you like.
Start with a single scene
You could have a finished chapter by tonight.
Double opt-in: we send a confirmation email first. Unsubscribe anytime.