SpotlightTool
April 27, 202515 min readBestAI Editorial

How to Write a Book with AI in 2025: Complete Guide

A complete, step-by-step guide to writing a book with AI in 2025. Learn how to use AI tools for plotting, drafting, editing, and publishing your novel or non-fiction book.

How to Write a Book with AI in 2025: The Complete Guide


Writing a book used to take years. With AI, serious writers are completing first drafts in weeks. This guide covers the full process — from idea to published manuscript — using AI tools at every stage.


Can You Really Write a Book with AI?


Yes — but with an important caveat: AI writes *with* you, not *for* you. The best AI-assisted books use AI to overcome friction (blank page syndrome, slow drafting, revision paralysis) while the author provides the vision, voice, and emotional core.


Authors using AI report:

  • 3-5x faster first draft completion
  • Significant reduction in writer's block
  • Better brainstorming and plot development
  • Easier revision and editing

  • Step 1: Choose Your AI Writing Stack


    You'll want tools for different phases:


    For fiction:

  • **Sudowrite** — drafting, rewriting, brainstorming
  • **Plot Factory** or **Fictionary** — planning and structure
  • **NovelAI** — immersive prose generation

  • For non-fiction:

  • **ChatGPT** or **Claude** — research synthesis and outlining
  • **Notion AI** — organization and note-taking
  • **Grammarly** — final editing

  • For any book:

  • **Scrivener** — manuscript management
  • **ProWritingAid** — deep editing

  • Step 2: Develop Your Concept and Outline


    Don't start drafting without a structure. Use AI to:


  • **Brainstorm the premise**: "Give me 10 variations on this concept: [your idea]"
  • **Develop the three-act structure**: Ask Claude or ChatGPT to map your story beats
  • **Create character profiles**: Names, backstories, motivations, flaws
  • **Build your chapter outline**: 20-30 bullet points, one per chapter

  • Prompt example:

    > "I'm writing a psychological thriller set in 2025. The protagonist is a forensic accountant who discovers her firm is laundering money for organized crime. Create a 25-chapter outline with key plot points, character reveals, and the climax."


    Step 3: Build Your World and Characters


    Before drafting, use AI to develop depth:


  • Use **Sudowrite's Story Bible** to track details
  • Ask AI to write character backstories you'll never use (this makes characters feel real)
  • Generate detailed setting descriptions
  • Create your story's internal rules and logic

  • Step 4: Draft with AI Assistance


    The drafting phase is where AI saves the most time:


    Method 1: AI-Assisted Drafting

  • Write 1-2 paragraphs of a scene
  • Use Sudowrite's Write feature to continue
  • Edit and guide the output
  • Repeat

  • Method 2: Full Scene Generation

  • Write a detailed scene description
  • Ask AI to draft the full scene
  • Rewrite in your voice

  • Method 3: Dialogue First

  • Draft all dialogue for a scene
  • Ask AI to add action, description, and interiority
  • Edit for voice

  • **Target:** 1,000-2,000 words per day. A 80,000-word novel in 6-8 weeks.


    Step 5: Revise and Edit


    AI is excellent for revision:


  • **Pacing check**: "Does this chapter drag? Where?"
  • **Continuity check**: "Check this chapter against my Story Bible for inconsistencies"
  • **Line editing**: Use ProWritingAid + Grammarly
  • **Dialogue**: "Make this conversation feel more natural"
  • **Show don't tell**: "Rewrite this paragraph to show the emotion rather than state it"

  • Step 6: Professional Editing


    AI doesn't replace human editors — use **Fictionary** for structural editing feedback, then hire a human developmental editor if this is your first book.


    Step 7: Publishing Options


    Self-publishing:

  • Amazon KDP (Kindle Direct Publishing)
  • IngramSpark for print
  • Draft2Digital for wide distribution

  • Traditional publishing:

  • Query agents with AI-polished query letter and synopsis
  • Use ChatGPT to help craft your pitch

  • How Much Does AI Book Writing Cost?


    | Tool | Monthly Cost | Role |

    |------|-------------|------|

    | Sudowrite | $19-29 | Primary drafting |

    | Scrivener | $49 one-time | Manuscript mgmt |

    | Grammarly | Free-$12 | Editing |

    | ProWritingAid | $20 | Deep editing |


    **Total: ~$50-60/month** during active writing, then just Grammarly for editing.


    Frequently Asked Questions


    Is writing a book with AI cheating?

    No — AI is a tool, like word processors, research libraries, and editors. Authors have always used tools. AI accelerates the process; the creative vision remains yours.


    How long does it take to write a book with AI?

    A dedicated writer using AI can complete a 80,000-word first draft in 4-8 weeks. Without AI, the same project often takes 6-18 months.


    Can AI write the whole book for you?

    Technically yes, but the result will lack a distinct voice and authentic emotional resonance. The best books use AI as a powerful assistant while the author maintains creative control.


    Will readers know if I used AI?

    Not if you rewrite and edit thoroughly. AI-generated text that's been properly revised and edited by a skilled author is indistinguishable from traditionally written work.

    Compare the best AI tools yourself

    Check our overview page and find the tool that suits you.

    View all tools →