What you’ll be able to do

You’ll get a working method for using AI as your outliner, your editor, and your sounding board, without handing over the actual writing. By the end you’ll have three prompts you can use straight away, a sense of what to check before you trust any output, and a clear line drawn between what AI should touch and what it shouldn’t. The book stays yours. That’s the whole point.

Before you start

AI is genuinely good at some parts of writing a book and genuinely bad at others, and knowing the difference upfront saves you a lot of wasted effort.

It’s good at outlining, structure critique, spotting continuity errors, asking the awkward questions your plot or argument hasn’t answered yet, and helping you think through research angles. Feed it a messy synopsis and it’ll hand back a shape. Feed it two chapters and ask if your character’s motivation holds up, and it’ll usually spot the gap.

It’s bad at writing your prose for you. Not because it can’t produce sentences, it can, easily, but because readers can tell. There’s a flatness to AI-generated fiction and a genericness to AI-generated non-fiction that shows up even when the grammar’s perfect. Publishers know this now. Competitions are starting to ask directly whether AI wrote the text, not just whether it helped. So the workflow here treats AI as staff, not as a ghostwriter: it drafts scaffolding, checks your work, asks questions. You write the actual words.

Keeping your voice matters for reasons beyond ethics, too. Your voice is the thing that makes your book yours rather than a competent imitation of a book. Outsource that and there’s not much left that’s yours to sell, or to finish, or to be proud of.

Get set up

For structure and long-project memory, Claude Projects or ChatGPT Projects both let you upload your manuscript so far and keep working against it across sessions, which matters once you’re past 20,000 words and can’t paste the whole thing into a chat window each time.

For fiction specifically, Sudowrite and Novelcrafter are built for this job rather than adapted to it. Sudowrite leans towards prose feedback and brainstorming; Novelcrafter is more of a story bible, tracking characters, plot threads and continuity across a long manuscript. Both are worth trying if you’re deep into a novel and want something purpose-built rather than a general chat assistant.

Scrivener remains the actual writing app most novelists and non-fiction authors use to structure and draft a long manuscript, AI or no AI. Google Docs or Word still do the job of holding your actual manuscript, and are what most editors and agents expect to receive anyway.

If you want your own writing style to carry across a long project without an AI assistant drifting into generic phrasing, ScriptGrain (from us) is built to keep drafts anchored in your own voice over time, which is worth a look if that’s the specific problem you keep hitting.

Whichever tool you use, keep a master copy of your manuscript somewhere outside any AI platform. A folder on your own drive, backed up properly. Uploaded manuscripts are subject to whatever data terms the tool has at the time, and those terms can change. Check them before you upload anything unpublished.

Try it yourself

Here are three prompts that do three different jobs. Use them as starting points and adjust to your actual book.

Outlining a chapter from a rough idea:

I'm writing a [novel/non-fiction book] about [one-sentence description].
Here's my rough idea for the next chapter: [paste your notes, however messy].
Give me a possible chapter outline as a numbered list of beats or sections.
Don't write any prose. Ask me two questions about anything unclear before you outline.

Structural critique of a draft you’ve already written:

Here is a chapter from my book: [paste the chapter].
Don't rewrite any of it. Instead, tell me:
1. Where the pacing drags or rushes
2. Any structural or logical gaps
3. One thing that's working well
Keep your answer under 300 words.

Continuity check across a longer manuscript (best done in Claude Projects or ChatGPT Projects once you’ve uploaded the manuscript so far):

Using the manuscript I've uploaded, check for continuity issues in the following areas:
[e.g. character ages, timeline of events, names/spellings, established facts].
List anything inconsistent with a page or chapter reference where possible.
Do not summarise the plot, just flag inconsistencies.

Notice none of these ask the AI to write your actual scenes or paragraphs. That’s deliberate. You’re using it to think alongside you, not to think for you.

Check the result

Don’t take any of this at face value, even when it sounds confident. Confidence is not the same as being right, and AI tools are consistently confident.

For outlines, check whether the beats actually follow from what you told it, or whether it’s quietly invented a subplot or a fact you never mentioned. Ask yourself: does this outline solve a problem I actually have, or is it just plausible-sounding structure?

For structural critique, test it against your own gut. If it flags pacing as slow somewhere you already suspected was slow, that’s useful confirmation. If it flags something you’re confident works, don’t automatically defer, ask it why, and see if the reasoning holds up or falls apart under a follow-up question.

For continuity checks, spot-check a few of the flagged issues by hand. If it says your character’s eye colour changed between chapter three and chapter eleven, go and check chapter three and eleven yourself. These tools can miss things in long documents and occasionally flag something that isn’t actually there.

A good general test: ask the same question twice, worded slightly differently. If the answers contradict each other, treat both with suspicion.

If it doesn’t work

The main things to watch for here are privacy and scope.

On privacy: before uploading an unpublished manuscript anywhere, read the tool’s actual data and privacy terms, not a summary of them, the real page. Terms vary by product and by whether you’re on a free or paid tier, and they change. If you’re querying agents or publishers with a manuscript, some will ask directly whether it’s been processed through AI tools, and a few explicitly discourage uploading unpublished work to third-party platforms. Know your situation before you upload anything.

Never hand over anything you can’t afford to lose control of: unpublished manuscripts you haven’t backed up elsewhere, personal information about real people if you’re writing memoir or biography, anything under an existing publishing contract with confidentiality clauses, or research material you don’t have the rights to share.

Keep your master file somewhere the AI tool never touches. Not as a paste-in, not synced into a shared workspace, just sitting on your own drive, backed up. If a tool loses your project, changes its terms, or you decide to stop using it, your book should be completely unaffected.

If the AI keeps producing generic, over-polished outlines or feedback that reads like it could apply to any book, that’s usually a sign your prompt is too vague. Give it more specific detail about your actual book, your actual chapter, your actual sticking point. Vague input gets vague output, every time.

And if you catch yourself accepting AI-written sentences into your manuscript because they’re “close enough”, stop and rewrite them yourself. That’s the line the whole method depends on.

Keep exploring

If editing is where you need the most help right now, have a look at How to get AI to edit my writing. If your worry is that AI drafts read too generically and you want output that actually sounds like you, try How to get AI to sound like me. And if a big chunk of your book needs research rather than drafting, How to get AI to help me research a topic covers that ground properly.

Sources and review notes

Review date: 15 September 2026 — every source above was opened and checked against the text on that date.

Disclosure: ScriptGrain is one of our products — this site is made by the same studio, Adapt Progress Evolve. We have tried to compare fairly, and the alternatives named are real and worth a look.