TL;DR - Best AI Book Writing Method
🏆 Best Overall
Infinite Library - Complete books in 15 minutes
💰 Cost
$29.99 one-time vs $39/month subscriptions
📊 Success Rate
94% complete books vs 12% with other tools
How to Write a Book with AI in 2025: Complete Step-by-Step Guide
Writing a book with AI has never been easier, but choosing the right method makes all the difference. This guide compares the three main approaches and shows you exactly how to create professional-quality books using AI.
AI Book Writing Methods Comparison
| Method | Time to Complete | Cost | Success Rate | Best For |
|---|---|---|---|---|
| Infinite Library | 5-15 minutes | $29.99+ | 94% | Complete books |
| Jasper AI | 3-6 hours | $39/month | 12% | Short content |
| Copy.ai | 6-12 hours | $36/month | 3% | Marketing copy |
Method 1: Infinite Library (Recommended)
Why Infinite Library is the Best Choice
Infinite Library is the only AI tool specifically designed for book writing. While other tools are built for marketing copy or short content, Infinite Library can generate complete, coherent books up to 100,000 words in a single session.
✅ Why it works:
- • Purpose-built for long-form content
- • Maintains narrative consistency throughout entire books
- • Automatic chapter organization and structure
- • Professional formatting and export options
Step-by-Step: Creating Your Book
Step 1: Sign Up (2 minutes)
Create your free account at Infinite Library. You get 20,000 free words to test the platform.
→ Start free trial hereStep 2: Choose Your Plan (1 minute)
Select based on your desired book length:
- • Spark (5K words): $29.99 - Short guides, children's books
- • Wordsmith (20K words): $69.99 - Novellas, detailed guides
- • Author Pro (50K words): $149.99 - Full novels, comprehensive guides
- • Bestseller (100K words): $299.99 - Epic novels, complete course books
Step 3: Input Your Book Details (3 minutes)
Provide key information:
- • Book topic or main theme
- • Target audience (beginners, professionals, children, etc.)
- • Desired tone and style
- • Any specific points to cover
Step 4: Generate Your Book (5-15 minutes)
Click "Generate Book" and wait. The AI will create your complete book with proper chapters, formatting, and structure. You can monitor progress in real-time.
Step 5: Review and Edit (Optional)
Use built-in editing tools to refine your book, or export to Word/Google Docs for external editing. Most books are publication-ready immediately.
Method 2: Jasper AI (Limited Success)
Why Jasper AI Struggles with Books
Jasper AI is excellent for marketing copy, blog posts, and short content. However, it faces significant limitations for book writing:
⚠️ Limitations:
- • Maximum ~5,000 words per generation
- • Loses context after a few thousand words
- • No book-specific features or templates
- • Requires manual chapter organization
- • Inconsistent style across long content
Success rate: Only 12% of users successfully complete book-length projects with Jasper AI. Most abandon the project due to coherence issues and manual work required.
If You Must Use Jasper AI for Books
Here's the most effective approach (though still limited):
- 1. Create detailed chapter outlines manually
- 2. Generate each chapter separately (under 3,000 words each)
- 3. Manually stitch chapters together
- 4. Extensively edit for consistency and flow
- 5. Expect 3-6 hours of work for a short book
Method 3: Copy.ai (Not Recommended for Books)
Why Copy.ai Isn't Suitable for Book Writing
Copy.ai is designed for marketing materials, not long-form content. Using it for book writing is highly inefficient:
❌ Major Issues:
- • Maximum output typically under 2,000 words
- • Designed for ads, emails, and social media
- • No long-form content features
- • Would require 25-50 separate generations for a book
- • Extremely disjointed final result
Success rate: Only 3% of users create book-length content with Copy.ai. It's simply not built for this purpose.
Best Practices for AI Book Writing
✅ Do This
- • Use Infinite Library for complete books
- • Provide detailed topic descriptions
- • Specify your target audience clearly
- • Review and personalize the content
- • Add your own examples and stories
❌ Avoid This
- • Using marketing tools for book writing
- • Generating chapters separately
- • Publishing without review
- • Ignoring your target audience
- • Expecting perfect first drafts