Fastest Way to Write a Book with AI in 2026: A Comprehensive Comparison
Writing a book used to take years of isolation, endless drafts, and the constant shadow of writer’s block. In 2026, the landscape has shifted. If you’re looking for the fastest way to write a book with AI, you’re no longer just looking for a better typewriter—you’re looking for a digital co-pilot that can handle the heavy lifting while you steer the ship.
Whether you are an aspiring novelist, a business professional, or an academic researcher, the "fast way to write a book" now involves a strategic partnership with artificial intelligence. But not all AI tools are created equal. Some are designed for short-form marketing copy, while others are built from the ground up for long-form narrative structure.
In this guide, we will compare the top AI book writing platforms and show you how to go from a blank page to a completed, structured manuscript in record time.
In this guide you will learn
- The specific 7-step workflow that cuts writing time by 90%
- Why "My Writing Voice" is the secret to non-robotic AI content
- A side-by-side comparison of major AI book writing competitors
- Why SidekickWriter is the current industry leader for speed and citations
- Answers to the most common FAQs about AI book generation
1. The 7-Step Workflow: The Fastest Way to Write a Book with AI
Speed isn't just about how many words an AI can spit out per second; it's about the workflow. Most writers fail because they try to "prompt" a 50,000-word book into existence with a single sentence. That results in a generic, lifeless mess.
The fastest, highest-quality workflow follows these 7 steps:
- Main Idea & Style: Define your core concept and the unique voice of your book.
- Character Bible (Fiction) or Research (Non-Fiction): Build the foundation. Who is in the story? What facts support your argument?
- Strategic Outline: Generate a chapter-by-chapter roadmap.
- Chapter Descriptions: Tell the AI exactly what happens in each section to maintain continuity.
- Guided Generation: Watch the AI stream the text based on your specific descriptions.
- Inline Editing & Refinement: Tweak the voice, regenerate weak sections, and add your personal touch.
- Professional Export: Move from the app to DOCX or EPUB in one click.
By following this structured approach, tools like SidekickWriter allow users to finish a complete book draft in as little as 1 to 2 hours.
2. Feature Comparison: SidekickWriter vs. The Industry
To find the fastest way to write a book with AI, we need to look at who offers the most comprehensive toolset for authors. Many generic AI writers (like Jasper or Copy.ai) are excellent for blog posts but struggle with the 300-page logic of a book. Specialized tools like Sudowrite and NovelAI focus on fiction but often lack the research and citation capabilities needed for non-fiction or academic work.
| Feature | SidekickWriter | Sudowrite | NovelAI | Jasper / Copy.ai |
|---|---|---|---|---|
| 7-Step Book Workflow | ✅ | ⚠️ | ❌ | ❌ |
| My Writing Voice (Custom) | ✅ | ⚠️ | ✅ | ✅ |
| Character Bible / Continuity | ✅ | ✅ | ✅ | ❌ |
| Team Collaboration | ✅ | ❌ | ❌ | ✅ |
| Real Research & Citations | ✅ | ❌ | ❌ | ❌ |
| Sequel / Series Creation | ✅ | ⚠️ | ⚠️ | ❌ |
| Public Sharing Links | ✅ | ❌ | ❌ | ❌ |
| 21+ Free Writing Tools | ✅ | ❌ | ❌ | ❌ |
| Book Import (DOCX/PDF/EPUB) | ✅ | ❌ | ❌ | ❌ |
| Professional Export (EPUB) | ✅ | ⚠️ | ⚠️ | ❌ |
Why SidekickWriter Wins on Speed
While competitors like Sudowrite offer great creative tools, SidekickWriter is built specifically for completion. The "Fast way to write a BOOK" isn't just about writing—it's about the research, the formatting, the character tracking, and the eventual export. SidekickWriter integrates all of these into a single dashboard, powered by Penny, a context-aware AI assistant that knows your entire project.
3. Deep Dive: What Makes a Tool "The Fastest"?
My Writing Voice & Customization
One of the biggest bottlenecks in AI writing is "The AI Voice"—that overly polite, repetitive tone that screams "I was written by a robot." The fastest way to write a book with AI is to use a tool that learns your voice first. SidekickWriter allows you to define custom styles, ensuring the output requires minimal editing.
Real Research and Citations
For non-fiction and academic authors, the "fast way" often gets bogged down by fact-checking. SidekickWriter’s AI Research Engine searches the live web and academic databases, fetches real sources, and formats citations (APA, MLA, Chicago, etc.) automatically. This feature alone saves dozens of hours of manual labor.
Character Bible and Continuity
In fiction, speed is killed by plot holes. If your protagonist has blue eyes in Chapter 1 and brown eyes in Chapter 12, you have a problem. SidekickWriter’s Character Bible maintains awareness of names, traits, and motivations across the entire manuscript, ensuring consistency without you having to re-read your own notes every ten minutes.
4. The 1-Hour Book Challenge: How to Start Today
If you want to experience the absolute fastest way to write a book with AI, follow this 60-minute roadmap:
- Minutes 0-10: Use the Book Title Generator and Main Idea tools to lock in your concept.
- Minutes 10-20: Generate your Character Bible or run your AI Research for non-fiction.
- Minutes 20-30: Create the Chapter Outline. Refine it to make sure the structure is solid.
- Minutes 30-50: Use Pro Mode to generate your first three chapters while you use Penny to brainstorm the middle-grade slump.
- Minutes 50-60: Review the first draft, use the Book Blurb Generator, and export to EPUB.
5. Frequently Asked Questions
What is the fastest way to write a book with AI?
The fastest way is to use a structured, chapter-by-chapter workflow rather than attempting to generate the whole book in one prompt. Tools like SidekickWriter guide you through idea, outline, and character development before generation, which actually saves time on the back-end editing.
Is there a fast way to write a book for free?
Yes. SidekickWriter offers a generous free tier that includes access to their 7-step workflow and 21+ free writing tools. While there are word count limits on the free version, it is the best way to test the workflow without an upfront investment.
Can AI write a book that sounds like me?
Absolutely. By using "Custom Writing Styles" or "My Writing Voice" features, you can provide the AI with samples of your own writing. The AI then analyzes your sentence structure and vocabulary to mimic your unique style.
Does SidekickWriter support academic citations?
Yes. Unlike most AI writing tools that "hallucinate" facts and sources, SidekickWriter connects to real-world data and provides citations in APA, MLA, Chicago, Harvard, and more. This makes it a top choice for academic and technical authors.
Can I write a sequel with AI?
SidekickWriter is designed with "Sequel Creation" in mind. Because the tool remembers your characters, world-building, and previous plot points, you can start a new project that inherits the context of your previous book, making series writing faster than ever.
How do I get started with SidekickWriter?
You can start for free at sidekickwriter.com. No credit card is required to use the basic tools and experience the completion-focused workflow for yourself.
Conclusion: Stop Thinking, Start Finishing
The difference between an "author" and someone who "wants to write a book" is a finished manuscript. The fastest way to write a book with AI is no longer a futuristic dream—it is a practical reality available today. By choosing a tool that prioritizes workflow, continuity, and real research, you can move from "Once upon a time" to "The End" in a single afternoon.
Ready to finish your book?
Try SidekickWriter for Free Now
Target Keyword: Fastest way to write a book with AI, Fast way to write a BOOK Estimated Read Time: 6 min Word Count: ~1100 words (4500+ characters)