Updated November 2026 · prices checked on vendor sites 10 November 2026

AI Writing Software: Which Kind Fits What You Write (2026)

"AI writing software" covers five very different products: chat assistants, marketing copy tools, editing tools, fiction co-writers and book-length software. They are good at different jobs. This guide sorts them, names the well-known tools in each, shows what they cost, and explains which one to use for what you are actually writing.

By Sam May, founder of Inkfluence AI

Write a book free Compare the five kinds

A woman in a rust cardigan places a sticky note reading Publish on Amazon under the Book-length software column of a kraft-paper wall divided into Chat assistants, Marketing copy, Editing and grammar, Fiction co-writers and Book-length software, each with handwritten writing jobs — Sort the job first, then the software: a book you will publish is a different job from an ad headline or a comma fix.

The short answer

The best AI writing software is the one built for the length and destination of what you write:

Writing a whole book (an ebook, a novel, a picture book, a workbook, an audiobook, files for Amazon KDP): Inkfluence AI. It plans, writes, edits, designs the cover and exports PDF, EPUB, Word and the KDP package in one place. Free to start.
Questions, brainstorming and short drafts: a chat assistant such as ChatGPT or Claude.
Marketing copy for a brand or agency: a marketing tool such as Jasper; for SEO and AI search visibility, Writesonic.
Fixing text you already wrote: an editing and grammar tool.
Writing a novel yourself, scene by scene, with AI suggestions: a fiction co-writer such as Sudowrite, Novelcrafter or NovelAI.

Most people searching for AI writing software have one of two jobs in mind. Either they want help with everyday writing (emails, posts, a paragraph that will not come out right), and a chat assistant they may already have is enough. Or they want to produce something long and finished: a guide to sell, a novel, a children's book. That second job is where general tools run out, because a book is not a long chat reply. It needs a plan that holds for twenty chapters, a memory of what was said in chapter three, a cover, and files a store will accept. A planning canvas covers the first of those; see Storyflow alternatives.

If your job is a book, our ranking of the best AI book writing apps compares the book tools one by one, and best AI book writing software shows how we tested them. This page stays one level up: which kind of software to look at in the first place.

The five kinds of AI writing software

Every product below can produce text. What separates them is what they are built around: a conversation, a brand, a document you wrote, a novel you are writing, or a book you want finished. The examples are well-known tools in each group, described from their own sites.

Kind of software	Built for	What you end up with
Book-length softwareInkfluence AI, SquiblerOur pick for books	A whole book: outline, chapters, cover and publishable files	PDF, EPUB, Word, KDP package, audiobook
Chat assistantsChatGPT, Claude	Questions, brainstorming, short drafts, explaining things	Text in a chat window
Marketing copy toolsJasper, Writesonic	Brand content, ads, emails, SEO and AI search visibility	Short marketing assets
Editing and grammar toolsGrammar checkers and style editors	Fixing and tightening text you already wrote	Your own text, corrected
Fiction co-writersSudowrite, Novelcrafter, NovelAI	Scene-by-scene help inside a novel you are writing	Prose and story notes, exported as text

The categories overlap at the edges. A chat assistant can write a chapter; a fiction co-writer can brainstorm a blog post. But each one is shaped around a different finished thing, and that shape decides how much work is left for you at the end. The sections below take each kind in turn.

Writing something book-length?

Type the idea, approve the outline, and read the first chapters in minutes. 5 chapters a month on the free plan.

Start a book free

Chat assistants: ChatGPT and Claude

Chat assistants are the AI writing software most people already have. You type a request, you get an answer, you ask for changes. They are excellent at the small and varied jobs that fill a working day: a reply to a difficult email, ten title ideas, an explanation of a topic you are about to write about, a rough first paragraph to push against.

ChatGPT and Claude both have free tiers and paid plans that raise usage limits and unlock stronger models. Claude's own pricing page lists Pro at $20 a month, or $17 a month billed annually, with Max plans from $100 a month (claude.com/pricing, checked 10 November 2026). ChatGPT's paid plans are on its pricing page; the amounts did not display when we checked, so we do not quote them here.

Where chat assistants run out

A conversation is not a manuscript. Ask for a ten-chapter guide and you get either a compressed summary or a long reply that stops partway and offers to continue. Each continuation is another message to copy into a document, and as the thread grows, details from early messages carry less weight: a character's eye colour changes, a framework introduced in chapter two is renamed in chapter seven, the same example turns up twice.

Then there is everything after the words. A chat window does not design a cover, lay out a print interior, build an EPUB that passes a store's checks, or narrate the book. You can do each of those with other tools, and plenty of authors do, but the chat assistant is one ingredient of a book, not the kitchen.

If you already pay for a chat assistant and want to know when a book tool is worth adding, our side-by-side pages for Inkfluence AI vs ChatGPT and Inkfluence AI vs Claude go through it feature by feature, and a ChatGPT alternative for writing a book covers the workflow differences.

Marketing copy tools: Jasper and Writesonic

Marketing tools are AI writing software built for businesses that publish a lot of short content under one brand. Their strengths are brand voice settings shared across a team, templates for ads, product descriptions and emails, and workflows for approving and reusing content. They are priced for that: Jasper's Pro plan is $69 a month per seat, or $59 billed yearly, with a 7-day free trial and a custom Business plan (jasper.ai/pricing).

Writesonic began as a copywriting tool and now presents itself around SEO and visibility in AI search answers: tracking how a brand shows up in AI assistants and producing content to improve it. Its plans start at $79 a month billed annually, with a free trial and no card needed (writesonic.com/pricing).

For a marketing team these are sensible purchases. For someone writing one book they are an odd fit: the price is set for a business seat, and the output is short-form. If what you want is a book to support a business, such as a lead magnet, a guide for clients or an authority book, book software gets you a designed PDF or a paperback instead of loose copy. See Inkfluence AI vs Jasper for a direct comparison, the lead magnet generator for the short version, and the AI non-fiction book writer for the long one.

Editing and grammar tools

Editing tools work on text that already exists. They catch spelling and grammar mistakes, flag long sentences and passive voice, suggest tighter wording and sometimes rewrite a paragraph in a different tone. Many now live inside the places you already write, as a browser extension or a word processor add-on.

They are the right AI writing software when the words are yours and you want them cleaner. They are the wrong one if you are stuck before the words exist: an editor cannot plan chapter six. They also tend to work a sentence or a paragraph at a time, so they will not tell you that chapters four and nine make the same point, which is the more common problem in a long draft.

Book software has editing built in. In Inkfluence AI you can rewrite, expand or shorten any passage, ask the assistant about the chapter you are in, and on Creator and Premium ask for a review of the whole book, which comes back as an editorial letter. Our AI book editor page shows those tools, and the best AI for editing a book compares standalone options.

Fiction co-writers: Sudowrite, Novelcrafter and NovelAI

Fiction co-writers are built for novelists who want to stay at the keyboard. You write; the software suggests the next lines, describes a setting, rewrites a scene in another tone, or answers questions about your own story notes. They suit writers who enjoy drafting and want help, not a draft.

Sudowrite is a fiction writing app with story planning and drafting help. Plans start at $10 a month billed yearly, with a free trial and no card; without a paid plan the AI features are off (sudowrite.com/pricing). See Sudowrite alternatives.
Novelcrafter is a planning and drafting workspace for novels. Plans run from $4 to $20 a month with a 21-day trial and no free plan; AI on its $8 plan and above works through an AI provider key you bring yourself, which that provider bills separately (novelcrafter.com/pricing). See Novelcrafter alternatives.
NovelAI is a story generator that also makes images. Subscriptions start at $10 a month, with a trial (novelai.net). See NovelAI alternatives.

The trade-off is the finish. These tools are about the prose, so most of them leave the cover, the print interior, the EPUB and the audiobook to other software. If you want a complete first draft of a novel that you then revise, rather than help with each scene, that is book-length software's job. Inkfluence AI writes fiction chapters in order and keeps a running record of characters, places, objects and who knows what, so a secret kept in chapter three is still a secret in chapter eight.

For novel-specific picks, read the best AI for writing novels and the best novel writing software, or go straight to the AI novel writer.

AI writing software for books: Inkfluence AI in depth

Book-length software is built around the finished book. It plans the whole thing before writing, keeps every chapter aware of the others, and ends with files a reader or a store can use. Squibler sits in this group too: it offers book and screenplay creation, with a free plan of 500 AI credits a month and paid plans from $15.83 a month billed annually (squibler.io/pricing; see Squibler alternatives).

Inkfluence AI is our product, and it is the one we recommend for books because it covers the most of the journey in one project: from a one-line idea, or your own manuscript, through to an exported paperback interior, an audiobook and a shop listing. Here is the whole path.

Step 1

Describe the book

Type the idea in one or two sentences, or import a Word document, PDF, EPUB or text file. Pick one of 33 book types, from how-to guides and cookbooks to romance, picture books and coloring books, and a chapter count.

Step 2

Approve the outline

The software plans every chapter first. On manual setup it waits for you: reorder chapters, rename them, cut what does not belong. This is where the book becomes yours.

Step 3

Chapters are written

Non-fiction chapters are written at the same time, each given its own example and angle so they do not repeat each other. Fiction is written in order, with a story record that tracks who knows what, so chapter nine remembers chapter three.

Step 4

Edit in a real editor

Rewrite, expand or shorten any passage, ask the assistant about your chapter, or request a whole-book review on Creator and Premium. Everything you change stays in one project.

Step 5

Make the cover

Upload your own, build one in the designer, or generate an AI cover on a paid plan (Creator includes 10 AI covers a month, Premium 30). The cover follows the book into every export.

Step 6

Export the files

PDF on every plan. EPUB, Word and the Amazon KDP package (paperback interior, full-wrap cover, Kindle cover and EPUB in one zip) on Creator, Premium or with a credit pack.

Step 7

Audiobook, video and selling

Narrate chapters with 49 AI voices in 14 languages, make a short book video, list the book in your own Etsy or Gumroad shop, and share a free first chapter on its public book page.

Through an office doorway, a bearded man caps a marker beside a whiteboard headed One book, one place, with seven boxes: Outline, Chapters, Edit, Cover, Export PDF EPUB Word KDP, Audiobook, Sell on Etsy Gumroad Amazon, next to a printed cover for The Weekend Vegetable Garden — Seven steps, one project: the difference between book software and a set of separate tools.

What kinds of books

There are 33 book types, and the type changes how chapters are written. A how-to guide gets steps and checklists; a cookbook gets recipes with ingredient lists; a romance gets scenes and dialogue; a workbook gets prompts and fill-in lines. Illustrated books are their own family: a picture book keeps the same characters on every page, and the coloring book generator produces line art ready for print. Books can be written in 30 languages, and a finished book can be translated into others as a separate copy.

What the plans include

Free: 5 chapters a month, up to 5 in one book, PDF export with a small footer credit, 3 AI assists a day. No card.
Creator, $9.99 a month or $89 a year: 35 chapters a month (about four short books), EPUB, Word and KDP export, 15 AI assists a day, 10 AI covers and 15 audiobook chapters a month.
Premium, $19.99 a month or $179 a year: unlimited chapters, 100 AI assists a day, 30 AI covers and 30 audiobook chapters a month.
Credit packs: 15 chapters for $9.99, 25 for $12.99 or 50 for $24.99, paid once, for one book without a subscription.

Every plan gives you commercial rights to what you make. The full breakdown is on the pricing page, and the AI cost calculator works out which plan suits the number of books you plan.

After the writing

This is where book software earns its place. The cover generator makes a front cover, and the KDP export builds the full wrap (front, spine and back) sized to your trim and page count. The audiobook studio narrates the book chapter by chapter. A book video gives you something to post. And the Publish page lists the book in your own Etsy or Gumroad shop, while Amazon gets the files you upload yourself; the KDP tools cover the listing.

Want the overview of what the platform can make? Start with the AI book writer or the AI book generator, and see finished books in the examples.

See the whole path on your own idea

Outline, chapters, cover and a PDF on the free plan. Upgrade only when you want EPUB, Word or the KDP package.

Start your book free

AI writing app or web software?

Many searches are for an "AI writing app" or an "AI app for writing", which usually means one of two things: something on the phone, or something simpler than a desktop program. In practice the best answer is both: an app for the moments you have and a web version for the long sessions.

Inkfluence AI runs in any browser and has an iPhone and iPad app. On the phone you can start a book, write chapters with AI, edit, design a cover, export and record an audiobook; the iPad layout gives the chapter list and editor more room. Books sync to your account, so you can outline on the bus and finish the edit at a desk. Our iOS ebook creator page walks through the app.

Over the shoulder of a woman in a mustard beanie on a commuter train, an iPhone shows a book editor for Sourdough for Busy People with a chapter list and Rewrite, Expand and Shorten buttons, a laptop in a grey sleeve on her lap — Twenty minutes on a train is enough to approve an outline or rework a chapter opening. The same book is waiting on the laptop.

Chat assistants also have good phone apps, and for quick writing they are often the fastest thing on your home screen. Fiction co-writers and marketing tools are mostly used in a browser on a computer. Whatever you choose, check three things on the phone version: that it saves to the same account as the web version, that it can export (not just draft), and that long text is comfortable to edit, not just to read.

For the full list of book-writing apps by platform, see the best AI book writing apps; for free options, the best free AI book writing tools.

Six questions to choose the right AI writing software

Feature lists all look alike. These six questions sort the field faster, and the first one does most of the work.

Question 1

What am I writing?

A caption, an email or a blog intro is a chat assistant or marketing tool job. A book, a guide, a workbook or a novel is a book-length job. Start with the output, not the brand name.

Question 2

How long is it?

Anything under about 1,500 words fits in one chat reply. Past that you are managing many replies, and the tool needs to remember what it wrote earlier. That is the line between a chat and book software.

Question 3

Where will it be published?

Amazon KDP wants an EPUB and a print-ready PDF with a full-wrap cover; Etsy and Gumroad want a PDF or EPUB; a newsletter wants plain text. Check the software exports the file your store asks for.

Question 4

Whose voice is it?

If you are writing every sentence yourself, you want an editor or a fiction co-writer. If you want a full draft to react to, you want software that writes the whole thing and then lets you edit it.

Question 5

What does it cost per book?

Divide the monthly price by what you will actually finish, whether that is books, posts or campaigns. A $69 marketing seat is cheap for an agency and expensive for one book; $9.99 for 35 chapters is about four books a month.

Question 6

Can I try it free?

A real free plan beats a trial that asks for a card. Make one small, real thing on the free tier before you pay, and judge the result, not the feature list.

A retired man in a flat cap on a park bench writes in a spiral notebook headed Before I pay for writing software, listing six numbered questions: What am I writing, How long is it, Where will it be published, Whose voice is it, What does it cost per book, Can I try it free, beside a thermos flask and a bag of pastries — Six questions, one page of a notebook. Answer them before comparing feature lists.

Put the answers together and the choice usually makes itself. A short piece in your own voice, published on your blog: a chat assistant or an editor. Marketing assets for a team: a marketing tool. A novel you want to write line by line: a fiction co-writer. A long, finished thing for a store or a reader, especially if you want a draft to react to rather than a blank page: book-length software.

If you are still unsure what a book needs, how to write a book covers the manual process with word counts and editing costs, and how to write a book with AI shows the AI version step by step.

Answered "a book" to question one?

Try the book software on the free plan before you pay for anything. No card.

Try it on your book

One task, three kinds of software

To make the differences concrete, take one realistic job: a 10-chapter beginner guide to sourdough for busy people, to sell as an ebook and a paperback. Here is how it goes in a chat assistant, a marketing tool and book software. The walk-through describes how each kind of tool is built to work; your results will vary with the prompt and the plan.

In a chat assistant

You ask for an outline and get a good one in seconds. Then you ask for chapter one, and chapter two, and so on, copying each answer into a document. By chapter six you notice the starter-feeding schedule has changed since chapter two, and the same "busy parent" example has appeared three times. You fix those by hand, paste everything into a word processor, add headings, a contents page and front matter, find a cover elsewhere, and convert the file to EPUB with a separate tool. It works. It also takes several evenings of assembly on top of the writing.

Where it fits: brainstorming the angle, testing chapter titles, explaining the fermentation science to yourself before you write about it.

In a marketing copy tool

The templates are for landing pages, product descriptions, emails and ads. You can push it to write long-form sections, but the tool is organised around campaigns, not chapters, and you finish with a set of documents rather than a book file. For this job it is the wrong shape at a business price.

Where it fits: once the book exists, writing the sales page, the launch emails and the ads for it.

In book software

You type the idea, choose the how-to type and ten chapters, and approve the outline: you move troubleshooting to the end and rename "Hydration Ratios" to "Flour, Water, Time" because that is how your readers talk. The chapters are written at the same time, each with its own example and angle, so the busy-parent story appears once. You spend your evening on the part that matters: adding your own schedule, your photos and the mistakes you made with your first loaves. Then you make a cover, export the KDP package, and record the book as an audiobook for listeners who bake with their hands full.

Where it fits: the book itself, start to finish, with your time going on your knowledge rather than on assembly.

Overhead on a library table, three outputs of the same sourdough guide request under index cards: Chat assistant, a printed chat transcript that stops asking whether to continue with Chapter 4; Marketing copy tool, a glossy sheet titled Bake Better Bread Today with a Shop now button; Book software, a bound proof of Sourdough for Busy People open to a ten-chapter contents page — Same request, three kinds of software: a transcript to assemble, a sales sheet, and a book.

The honest summary: all three can help with this book, and many authors use more than one. But only one of them is built to produce the book. Use the chat assistant for thinking, the marketing tool for selling, and book software for the thing you are selling.

Write this sourdough guide now

Opens the dashboard with the idea filled in. Change it to your own topic.

AI writing software prices compared

Each price was read on the vendor's own pricing page on 10 November 2026, in US dollars. Prices change, some are shown only for annual billing, and some vendors localise them, so treat this as a guide and check the linked page before you buy.

Software	Price (checked 10 November 2026)
Inkfluence AIBook-length software	Free (5 chapters a month); Creator $9.99 a month (35 chapters) or $89 a year; Premium $19.99 a month (unlimited chapters) or $179 a year; credit packs from $9.99 (plans)
SquiblerBook-length software	Free with 500 AI credits a month; Plus $29.99 a month or $15.83 billed annually; Pro $89.99 a month or $49.17 billed annually (source)
ChatGPTChat assistant	Free tier; paid plans: see vendor site (source)
ClaudeChat assistant	Free; Pro $20 a month or $17 a month billed annually; Max from $100 a month (source)
JasperMarketing copy	Pro $69 a month per seat, or $59 billed yearly; 7-day free trial; Business on request (source)
WritesonicMarketing, SEO and AI search	From $79 a month billed annually; free trial (source)
SudowriteFiction co-writer	From $10 a month billed yearly; free trial, no card (source)
NovelcrafterFiction co-writer	$4 to $20 a month; 21-day trial; AI through your own key from the $8 plan (source)
NovelAIFiction co-writer	From $10 a month; trial (source)

Two things are easy to miss when comparing these numbers. First, what the price buys: a chat plan buys usage of a general assistant, a marketing seat buys a team workflow, and a book plan buys finished books with covers and files. Second, what else you will pay for. A book written in a chat assistant still needs a cover, formatting software and possibly narration; Novelcrafter's AI on its paid plans runs on a key you pay the AI provider for separately.

For books, the cost per finished book is the fairest comparison. On Inkfluence AI Creator, 35 chapters a month works out to about four books of eight or nine chapters, under $2.50 a book, with the KDP files included. Our best AI book generator ranking compares book tools on exactly that.

Start free, upgrade when you publish

Free AI writing software: what you actually get

"Free" means three different things in this market: a free plan you can use indefinitely, a free trial that ends, and free tools that do one small job. Here is how they split.

Free plans

Inkfluence AI (5 chapters a month, PDF export), ChatGPT and Claude (free chat tiers), Squibler (500 AI credits a month). Use them as long as you like within the limits.

Free trials

Jasper (7 days), Novelcrafter (21 days), Sudowrite, Writesonic and NovelAI. Good for testing, but plan a real project for the trial window or it runs out before you learn anything.

Free single-job tools

Title, outline and blurb generators that run in the browser with no account. Ours include the book outline generator and the book title generator.

For a book, the free plan to test is the one that lets you finish something: a short guide or the first five chapters of a novel, exported as a PDF you can read like a reader would. That tells you more than a week of prompts. The free AI writer for books page explains exactly what the Inkfluence free plan covers, and the free AI book writer lets you try it.

Publishing AI-written work: the rules that matter

Whatever software you use, the rules sit with the store and the law, not the tool. Three are worth knowing before you publish.

Amazon KDP asks about AI. When you publish, KDP asks you to disclose AI-generated text, images or translations, even if you edited them substantially afterwards. Content you created yourself and only edited, refined or brainstormed with AI is AI-assisted and does not need disclosing (KDP content guidelines). Our explainer on the KDP AI disclosure policy walks through the questions.
Copyright follows human authorship. The US Copyright Office does not register material generated without human authorship. Your own writing, selection and arrangement can be protected, which is one more reason to put real work into the edit.
Facts are your responsibility. Any AI writing software can state a figure, a study or a quote with confidence and be wrong. Check every one against its source before publishing, or cut it.

Can you make money from it? Yes, plenty of authors do, within the stores' rules. Can you sell AI-generated books covers where they are allowed and what sells.

AI writing software: FAQ

What is the best AI writing software?

It depends on what you are writing. For a full book (an ebook, a novel, a picture book, a guide you will sell on Amazon), Inkfluence AI is the pick: it plans, writes, edits, designs the cover and exports PDF, EPUB, Word and the KDP package in one place. For quick questions and short drafts, a chat assistant such as ChatGPT or Claude. For marketing copy at volume, Jasper. For writing a novel scene by scene yourself, a fiction co-writer such as Sudowrite or Novelcrafter.

What is the best AI writing software for books?

Book-length software, because it remembers the whole book: the outline, earlier chapters, characters and facts. Inkfluence AI takes a one-line idea or your own manuscript to a finished, exported book, then on to an audiobook and an Etsy or Gumroad listing. Chat assistants can draft chapters, but you manage continuity, formatting and export yourself.

Is there free AI writing software?

Yes. Inkfluence AI has a free plan with 5 chapters a month (up to 5 in one book) and PDF export with a small footer credit, no card needed. ChatGPT and Claude have free chat tiers. Squibler has a free plan with 500 AI credits a month. Jasper, Sudowrite, Novelcrafter and Writesonic offer trials rather than free plans.

What is the best AI writing app for iPhone?

For books, the Inkfluence AI iOS app lets you start a book, write chapters with AI, design the cover and export, and it syncs with the web app so you can finish on a laptop. For general chat, the ChatGPT and Claude apps. Long editing sessions are still easier on a bigger screen.

What is the best AI software for writing a novel?

If you want a complete first draft you then revise, Inkfluence AI writes fiction chapter by chapter in order, keeping a record of characters, places and what each character knows. If you want to write every scene yourself with AI suggestions, Sudowrite and Novelcrafter are built for that. Many novelists use both: a draft from one, line-level help from the other.

Can I publish AI-written books on Amazon KDP?

Yes. KDP asks you to disclose AI-generated text, images or translations when you publish, even if you edited them heavily afterwards. Content you wrote yourself and only edited or brainstormed with AI counts as AI-assisted and does not need disclosing. You remain responsible for the book meeting KDP content guidelines.

Is ChatGPT good enough as writing software?

For short pieces, yes. For a book it is a capable writer with no book around it: no chapter plan that persists, no manuscript editor, no cover, no EPUB or KDP files. You copy, paste and format everything yourself, and long conversations drift. That is the gap book-length software fills.

What is the difference between AI writing software and an AI writing assistant?

An assistant helps with a piece of writing you are doing: a reply, a rewrite, a suggestion. Software in the fuller sense owns the project: it stores the document, keeps its structure and produces the finished file. Inkfluence AI is both: book software with an assistant built into the editor.

Who owns what AI writing software produces?

Check each vendor's terms. Inkfluence AI gives you commercial rights to every book on every plan. Separately, the US Copyright Office does not register material generated without human authorship, so your own writing, edits and arrangement are what copyright protects.

Can AI writing software write in my voice?

It gets closer the more of you it has to work with. Import your own writing, describe your tone in the brief, and rewrite chapter openings yourself. No software sounds like you out of the box; the edit is where the voice comes in.

Which AI writing software is best for marketing copy?

Jasper is built for brand teams producing marketing content. Writesonic now focuses on SEO and visibility in AI search answers. For a lead magnet or a short ebook to give away, book software is the better fit, because the result is a designed PDF rather than loose copy.

Can AI writing software make picture books or coloring books?

Most cannot. Inkfluence AI makes illustrated picture books, ABC books and coloring books with matching characters on every page, and exports them for print. On the free plan a picture book runs on chapter credits, one per page.

Do I still need a grammar checker?

It does no harm. AI drafts are usually clean on spelling and grammar; the problems are elsewhere: repeated points, invented facts, a voice that is not yours. Spend your editing time there, then run a grammar pass at the end if you like.

How much does AI writing software cost?

From free to over $100 a month. Chat assistants have free tiers and paid plans around $20 a month. Marketing tools start around $59 to $79 a month. Fiction co-writers run $4 to about $20 a month on entry plans. Inkfluence AI is free to start, $9.99 a month for 35 chapters, or $19.99 for unlimited chapters.

Writing a book? Use software built for books

Outline, chapters, editor, cover, PDF, EPUB, KDP files, audiobook and shop listings, in one place, on the web and on iPhone.

Start your book free See plans

No credit card. 5 chapters a month on the free plan.