First Book AI vs ChatTab

Comparing the features of First Book AI to ChatTab

Feature
First Book AI
ChatTab

Capability Features

AI Book Agent
Assistant API Support
Book Credits Additive
Book Structure
8 chapters, 24–32 sections
Built-in API Key Usage
Content Ownership
Custom Prompting
Edit Content
Free Tier
GPT3.5 AllGPT4GPT4-1106GPT4-VisionGPT4-32kClaude2
Full-Length Book Generation
Global Availability
GPT4-Vision Support
Guided Book Creation
iCloud Sync
Local Storage
Markdown Support
Multi-tab Support
Multilingual Support
Multiple Tabs in Pro/Max
Native Application
No ChatGPT Required
No Training on User Data
Own API Key Support
Priority Support Team
Publish on Amazon KDP
Quick Access
Roadmap Features
Additional languagesIn-text references & citationsReal-time collaborationAdvanced analytics
Section Editing
Security - Keychain Storage
Security - No Tracking
Setup Call Included
Shortcut Keys
Step-by-step Guidance
Step-by-Step Questionnaire
Support Response Time Team
Within one business day
Supported Models
GPT3.5GPT3.5-1106GPT3.5-16kGPT4GPT4-1106GPT4-VisionGPT4-32kClaude2
Team Use

Integration Features

EPUB/MOBI Workflow
Export Format
Microsoft Word (.docx)Google DocsPDF (print-ready)
Export to DOCX
Export to PDF
File Format Support
pdfxmltxtjsoncsvmd
Google Docs Export
Platform Support
macOS

Limitation Features

Current Languages
English only (as of now)
Free Tier Limit
10000
Free Tier Tab Limit
1
Manuscript Length Target
≈30k–35k words
Max Device Limit
3
No API Access
No Credit Card Needed
No Plugin Support
Plagiarism Responsibility
User responsibility
Pro Device Limit
1
Single Tab Limitation

Pricing Features

1 Book Plan
$19 one-time
10 Books Plan
$129 one-time
3 Books Plan
$47 one-time
30-Day Money Back Guarantee
50 Books Plan
$449 one-time
Book Credit Bundles
1 Book – $193 Books – $4710 Books – $12950 Books – $449
Max Pay-as-you-go Token Limit
4000000
No Monthly Fees
No Subscription
One Time Payment
One-time Max Price
$39.99
One-time Pro Price
$19.99
Pay As You Go Max
$9.99
Pay As You Go Pro
$6.99
Pay As You Go Starter
$3.99
Pay Once Use Forever
Pro Pay-as-you-go Token Limit
2660000
Refund Policy Duration
14-day money-back guarantee
Starter Pay-as-you-go Token Limit
1320000