Updated 8 November 2026

Writing a novel with ChatGPT: what works and what doesn't

You can write a novel with ChatGPT or Claude, but you will be the database: pasting chapters in, keeping notes elsewhere and checking continuity by hand. For brainstorming and research they are excellent. For a 90,000-word draft, a writing app with story memory, such as Feldar (ours), Sudowrite or Novelcrafter, does the bookkeeping for you.

By the Feldar team · checked 5 to 8 November 2026

The short answer

Yes, you can draft a whole novel this way. But a chatbot is a conversation, not a manuscript. It does not hold your chapters, it only knows what is in the current chat, and it will cheerfully contradict chapter three in chapter eleven unless you remind it. The longer the book, the more of your time goes into being its memory.

Where chatbots shine is around the writing: brainstorming, research, talking through a plot problem, and getting a second opinion on a scene.

Chatbot or novel writing app, job by job

Job	ChatGPT or Claude	A novel writing app
Brainstorming	Excellent, and cheap or free	Good; Sudowrite has Brainstorm, Feldar has Chat beside the page
Research	Fast, but check facts that matter	Not the point of most writing apps
Holding the manuscript	No; you paste text in and out	Yes: chapters, scenes, import and export
Remembering characters and places	Only what is in the current conversation	A story bible sent with each request (Feldar's Canvas, Sudowrite's Story Bible, Novelcrafter's Codex)
Drafting a scene	Yes, once you paste in enough context	Yes, from the plan already in the app
Revising your sentences	Returns a new version to compare by eye	Feldar marks each change in place and keeps your original until you apply it
Your words used for training	Depends on settings (see below)	Feldar, Sudowrite, Novelcrafter and others say no
Cost	Free; ChatGPT Plus $20/mo; Claude Pro $20/mo or $17 billed yearly	Free plans to $20/mo for most writers

Where chatbots break down on a novel

Continuity. A reviewer at Tom's Guide who tried drafting a novel found that ChatGPT on its own lost the thread across a long work, and that a dedicated tool's structure paid off. The cause is simple: the model only sees what you give it, and a novel is longer than anything you will paste in one go.

Bookkeeping. You end up keeping a separate document of character notes, pasting the relevant parts into every new chat, and copying the results back into Word. It works, but it is a second job.

Voice drift. Each new conversation starts from the model's default style unless you paste in a sample every time. Writing apps keep a voice sample for you; Feldar's Voice & Style uses 600 words of your prose and then the project's own writing.

Privacy defaults. On ChatGPT's individual plans, OpenAI may use your conversations to train its models unless you turn off "Improve the model for everyone", and feedback you give can still send a conversation for training. Anthropic uses Claude consumer chats for training if you allow it, if a chat is flagged for safety review, or if you opt in. If your manuscript is unpublished, check those settings first.

What a novel writing app adds

The AI underneath can be similar. What changes is everything around it.

Structure

Chapters and scenes you can reorder, a plan on each chapter, and import and export to Word. In Feldar, every chapter has an Outline of scenes and Draft Page can write from it.

Story memory

Characters, places and rules stored once and sent with every request, so you stop re-explaining your book. Feldar's Canvas, Sudowrite's Story Bible, Novelcrafter's Codex.

Changes you can see

In Feldar, AI text appears in blue and rewrites show every change in a card. Nothing enters the manuscript until you accept it.

A record of your process

Feldar's private Writing record counts which words you typed and which came through its tools, useful if a publisher or contest asks.

Try Feldar freeOur app: 500 credits, no card needed

A workflow that uses both

Brainstorm premises, names and research questions in Claude or ChatGPT, with training turned off if you prefer.
Move the ideas you keep into your writing app's story memory: characters, places, the rules of the world.
Plan chapters as scenes in the app, and draft there, so the AI always has the plan and the cast.
When a scene is not working, ask a chatbot or the app's reader personas what a reader would feel, then revise it yourself.

Questions

Is it allowed to publish a novel written with ChatGPT?

Usually, but disclose it where required. Amazon's Kindle Direct Publishing asks you to disclose AI-generated text, images or translations when you publish, though not AI-assisted work such as editing or brainstorming on text you wrote. Many contests and some publishers refuse AI-generated text, so check their rules.

Will OpenAI or Anthropic train on my novel?

On ChatGPT's individual plans, OpenAI may unless you turn off "Improve the model for everyone". Anthropic trains on Claude consumer chats if you allow it in settings, if a chat is flagged for safety review, or if you opt in. Business and API plans have different defaults.

Can ChatGPT remember my whole book?

Not reliably. It knows what is in the conversation you give it. For a book-length project, a writing app that stores your characters and plan and sends them with each request is far less work.

Is ChatGPT or Claude better for fiction?

There is no single answer, and both change every few months. Try the same scene and the same feedback question in both. Some writing apps let you choose between their models inside the app; Feldar offers OpenAI's GPT-6 and Anthropic's Claude 5.5 models.

Sources

Checked 5 to 8 November 2026.

OpenAI: how your data is used, ChatGPT Plus
Anthropic: model training, pricing
Review: Tom's Guide on drafting a novel with ChatGPT
Amazon KDP: content guidelines on AI
Feldar: Our own product.