First Book AI vs Giststack

Comparing the features of First Book AI to Giststack

Feature
First Book AI
Giststack

Capability Features

AI Book Agent
AI Summarization
AI Tone Matching
Book Credits Additive
Book Structure
8 chapters, 24–32 sections
Content Ownership
Curate Multiple Sources
Edit Content
Full-Length Book Generation
Guided Book Creation
Max Publications Business
100
Max Publications Launch
20
Max Publications Pro
50
Monthly Post Processing Business
4500
Monthly Post Processing Launch
800
Monthly Post Processing Pro
2000
No Subscription Required
No Training on User Data
Post Retention Business
12 Months
Post Retention Launch
6 Months
Post Retention Pro
12 Months
Priority Support Team
Publish on Amazon KDP
Quick Access
Roadmap Features
Additional languagesIn-text references & citationsReal-time collaborationAdvanced analytics
Section Editing
Setup Call Included
Step-by-step Guidance
Step-by-Step Questionnaire
Support Response Time Team
Within one business day
Team Use
Unlimited AI Usage (Premium)
Workspaces
10
Workspaces Pro
3

Integration Features

EPUB/MOBI Workflow
Export Format
Microsoft Word (.docx)Google DocsPDF (print-ready)
Export to DOCX
Export to PDF
Google Docs Export
Webhook Integration
Webhook Publishing Pro+

Limitation Features

BYOK OpenRouter Key Required
Current Languages
English only (as of now)
Manuscript Length Target
≈30k–35k words
No API Access
No Free Tier
No Plugin Support
Plagiarism Responsibility
User responsibility

Pricing Features

1 Book Plan
$19 one-time
10 Books Plan
$129 one-time
3 Books Plan
$47 one-time
30-Day Guarantee
30-Day Money Back Guarantee
50 Books Plan
$449 one-time
Book Credit Bundles
1 Book – $193 Books – $4710 Books – $12950 Books – $449
Business LTD Price
$197
Launch LTD Price
$85
Lifetime Deal
No Monthly Fees
No Subscription
One Time Payment
Pro LTD Price
$120
Refund Policy Duration
14-day money-back guarantee
30