Sproker Studio
An assistant that has read your whole book
Ask for a paragraph, a rewrite of the words you selected, a first draft or a plot check, and the answer knows your synopsis, your story bible, your world and every earlier chapter. The price is shown before you click. Everything it writes can be undone.
Four doors
The assistant is wherever your cursor is
There is no separate chat window to copy from. Each door answers one kind of request, in the place you make it, and nothing lands in your manuscript until you keep it.
The panel
Ideas, a first draft, a revision of the whole chapter, a story health check, a plot check, research and the coach. Insert at your cursor or replace the draft, always with a confirmation.
The sparkle in the header, on every screen size.
The selection
Select any words and the toolbar offers seven passes (rewrite, shorten, expand, show rather than tell, change the tone, fix grammar, or your own instruction). The answer appears under the selection: replace, insert below, try again or discard.
Select text, then the sparkle at the start of the toolbar.
Write here
Say what should happen at this point in the chapter and a paragraph appears at your cursor, tinted until you keep it. It reads what comes before and after, so a scene written into the middle of chapter twelve fits chapter twelve.
Type /ai on a new line, or press Cmd+J.
Ghost text
Pause at the end of your draft and a faint continuation appears. Tab keeps it, typing dismisses it. It is a switch in the writer settings, off when you say so.
Autocomplete, under While you write.
Context
It has read your book, not just the paragraph
Most AI writing tools see the few hundred words around the cursor. On Sproker every request carries the whole book behind it, assembled on the server, so a character does not change eye colour in chapter nine.
- Your synopsis and logline, and the story bible you keep.
- Your world: the wiki, the story beats, the scenes, the lore and your notes.
- Every earlier chapter, as a summary written when it became canon.
- The previous chapter in full, so the voice carries over.
- For a rewrite or Write here: the words around your cursor.
Honest by design
Price before, Undo after
The price before every action
Each door shows what the request will roughly cost before you click, computed from the same inputs the server charges. A few cents for most actions, paid from AI credits, with no AI subscription.
Undo after every action
Whatever the assistant writes arrives as a suggestion: a tinted block, a card under your selection, a preview in the panel. Keep it or discard it, and Undo is on the toast after you keep it.
Your words stay yours
You own what you write. A chapter the assistant touched is marked as AI-assisted, so a reader always knows.
- Choose how much help you want: none, on request, or everything on. It is your setting alone.
- Nothing appears on its own unless you switched it on.
- A plot owner decides per story whether the assistant is required, optional or not allowed.
Questions writers ask
- Does the AI write my book for me?
- No. Each of the four doors answers a request you make, and its answer is a suggestion until you keep it. You can write a whole novel on Sproker without opening any of them, and many writers do. The assistant is there for the sentence that will not come, the scene that needs tightening, and the plot hole you want a second reader for.
- Does it know my earlier chapters?
- Yes. Every request carries a summary of each earlier chapter, the previous chapter in full, your synopsis, your story bible and your world (wiki, beats, scenes, lore, notes). The summaries are written on the server when a chapter becomes canon, so the book grows without the price growing with it.
- What does it cost?
- AI on Sproker is pay-as-you-go from AI credits, not a subscription. Most actions cost a few cents, an image more. Every door shows the estimate before you click, and you are charged the real cost afterwards, never more than the estimate held.
- Which AI models does it use?
- Several providers, chosen per task by the studio for quality and cost. You can pick a preferred text and image model in your AI preferences, and the price shown before each action follows your choice.
- Can I turn it off?
- Yes. AI preferences has one writing assistance setting with three levels: none, on request, or everything on. On none, no door opens and nothing appears while you write. It is your setting alone and does not change what other people see.
- Does it work on my phone?
- Yes. The selection toolbar, Write here from the slash menu, and the assistant behind the header sparkle all work on a phone, and answers open as a sheet from the bottom so nothing sits in the way of the keyboard.
Write the book you have been putting off
Free to start, no credit card. The assistant is there when you want it and quiet when you do not.