Fastest Way to Write a Book with AI in 2026: Ultimate Speed Comparison
Writing a book used to take years of disciplined typing, coffee-fueled late nights, and endless cycles of writer’s block. In 2026, the landscape has shifted. AI isn’t just a gimmick; it’s the engine behind a new generation of high-output authors. If you are looking for the fastest way to write a book with AI or a fast way to write a BOOK from scratch, you’ve come to the right place.
In this comprehensive guide, we compare the top AI writing platforms to see which one actually delivers on the promise of speed without sacrificing the creative soul of your story.
In this guide you will learn
- Why a structured workflow is faster than a single prompt
- How SidekickWriter compares to industry giants like Jasper and Sudowrite
- The secret to maintaining character continuity across 50,000+ words
- How to use real-time research and citations for non-fiction speed
- A 7-step workflow to finish your first draft today
1. The Core Difference: Speed vs. Control
Most writers fail with AI because they treat it like a magic button. They ask ChatGPT to "write a 200-page thriller," and the result is a 500-word summary of a generic plot. The fastest way to write a book is not through a single prompt, but through a guided workflow.
The Generic AI Philosophy
Tools like Jasper or Copy.ai were built for marketing. They are incredible at short-form copy, but when you try to write a book, they lose the thread. You end up spending more time fixing hallucinations than actually writing.
The SidekickWriter Philosophy
SidekickWriter was built specifically for completion. It breaks the monumental task of book writing into a logical, 7-step sequence. It acts as a co-pilot, suggesting ideas and generating text while you maintain full editorial control. This balance is what allows users to finish a full-length novel in as little as 1–2 hours.
2. Feature Comparison: SidekickWriter vs. The World
When speed is the goal, you need specific features that keep you moving. Here is how the top contenders stack up.
| Feature | SidekickWriter | Sudowrite | Jasper | ChatGPT / Claude |
|---|---|---|---|---|
| 7-Step Completion Workflow | ✅ | ❌ | ❌ | ❌ |
| My Writing Voice (Custom) | ✅ | ✅ | ✅ | ⚠️ Manual |
| Character Bible (Continuity) | ✅ | ✅ | ❌ | ⚠️ Manual |
| Team Collaboration | ✅ | ✅ | ✅ | ❌ |
| Real Research + Citations | ✅ | ❌ | ❌ | ❌ |
| Sequel Creation Support | ✅ | ⚠️ | ❌ | ❌ |
| Public Share Links | ✅ | ❌ | ❌ | ❌ |
| 21+ Free Tools (No Signup) | ✅ | ❌ | ❌ | ❌ |
| EPUB & DOCX Export | ✅ | ✅ | ❌ | ❌ |
| Import Existing Work | ✅ | ❌ | ❌ | ❌ |
3. Why SidekickWriter is the Fastest Way to Write a Book
SidekickWriter doesn’t just give you a blank page; it gives you a roadmap. Here are the specific features that accelerate your writing process:
The 7-Step Workflow
By following a structured path—Idea → Writing Style → Characters → Outline → Chapter Descriptions → Generation → Editing—you eliminate the decision fatigue that causes writer’s block. You aren’t wondering "what happens next?"; you are simply guiding the AI through your vision.
Character Continuity
In fiction, the biggest speed-killer is inconsistency. If your protagonist’s eyes change from blue to green in chapter four, you have to stop and fix it. SidekickWriter’s Character Bible ensures the AI knows your characters intimately, maintaining their traits and motivations from page 1 to page 300.
Real-Time Research & Citations
For non-fiction and academic authors, the fastest way to write a book includes deep research. SidekickWriter’s AI Research Engine searches the live web and academic databases, fetching real facts and formatting them into APA, MLA, or Chicago citations automatically. No more manual bibliography management.
4. What Competitors are Best At
While SidekickWriter is the leader for book completion, others have their niches:
- Sudowrite: Excellent for fiction writers who want to "jam" with the AI on specific sensory descriptions or prose expansion.
- Jasper: The go-to for marketing teams and business professionals who need blogs and social posts alongside their long-form content.
- NovelAI: Great for authors who want a completely unconstrained, locally-focused AI experience for niche creative projects.
5. A 7-Step Workflow for Instant Results
If you want to start right now, follow this "Fast Way to Write a BOOK" workflow inside SidekickWriter:
- Generate the Core Idea: Use the "Random Idea" generator if you’re stuck.
- Define Your Voice: Select a preset or describe your unique writing style.
- Build Your Cast: Define 3-5 main characters with names and backgrounds.
- Auto-Generate the Outline: Let the AI draft 10-20 chapters based on your idea.
- Refine Chapter Descriptions: Add 1-2 sentences of specific plot points for each chapter.
- Stream the Generation: Hit "Generate" and watch as the AI writes the full draft.
- Export and Polish: Download as a DOCX for final editing or EPUB for your Kindle.
6. Pricing Comparison
| Plan | SidekickWriter | Sudowrite | Jasper |
|---|---|---|---|
| Free | ✅ (Generous) | ❌ (Limited Trial) | ❌ (Trial Only) |
| Starter | $12/mo | $19/mo | $49/mo |
| Pro | $99/mo | $59/mo+ | $125/mo+ |
Conclusion: Start Your Journey Today
The technology is here. The fastest way to write a book with AI is no longer a secret—it’s about having the right co-pilot. SidekickWriter provides the structure, the research, and the continuity you need to finally see "The End" on your manuscript.
Ready to finish your book? Try SidekickWriter for free at sidekickwriter.com
Frequently Asked Questions
What is the fastest way to write a book with AI?
The fastest way is using a completion-focused tool like SidekickWriter. By using a structured 7-step workflow, you can generate a 50,000-word draft in approximately 1–2 hours.
Can AI write a whole book by itself?
While AI can generate the text, the best books are a collaboration. SidekickWriter allows the AI to handle the heavy lifting while you provide the creative direction, characters, and final edits.
How do I ensure my AI-written book stays consistent?
Use a tool with built-in character continuity and story awareness. SidekickWriter tracks your characters and previous chapters to ensure the plot and personality traits remain consistent throughout.
Is it legal to publish a book written with AI?
Yes, as of 2026, you can publish AI-assisted work. However, you should always check the latest copyright regulations in your jurisdiction and be transparent with your readers if required.
Does SidekickWriter support non-fiction research?
Yes. Unlike many competitors, SidekickWriter has a built-in research engine that searches the live web and provides proper academic citations for non-fiction and academic books.
How do I get started for free?
Simply visit sidekickwriter.com and sign up for the free tier to begin your first project immediately.
Target Keyword: Fastest way to write a book with AI Estimated Read Time: 8 min Word Count: 1100+
⚠️ Academic Integrity Disclaimer
AI writing tools like SidekickWriter are designed to assist your learning, not replace it. Use AI to:
- Overcome writer's block and get started
- Structure your ideas more clearly
- Focus on understanding the material, not just typing
- Speed up research with citations and references
Always review, edit, and add your own insights to any AI-generated draft. Follow your institution's policies on AI assistance. Learn more at SidekickWriter's Acceptable Use Policy.
Remember: AI helps you write — but only you can truly understand the material.