Fastread
AI publishing platform that turns ideas into illustrated books and audiobooks in minutes.
Client Overview
Fastread is an AI-powered self-publishing platform that takes an idea and ships it as a publication-ready book — with text, AI-generated illustrations, and audiobook narration — in 25+ languages. We built the platform on a Next.js + Supabase stack, integrated both OpenAI and Anthropic models, and shipped Figma-perfect responsive UI with Stripe subscriptions.
Industries
Technologies
Status
The Challenges
Coordinating multiple AI providers (OpenAI + Anthropic) for different generation tasks.
Producing illustration sets that stay visually consistent across an entire book.
Supporting 25+ languages without quality regression on niche locales.
Building a subscription billing layer that handles upgrades, refunds, and content limits.
Solutions & Strategies
Multi-LLM Orchestration
- Routed content generation tasks between OpenAI and Anthropic based on strengths.
- Built a generation pipeline with retries, fallbacks, and consistent output formatting.
Illustration & Audio
- Integrated AI image generation for chapter illustrations and book covers.
- Added AI-voice audiobook generation with exports to MP3/M4B formats.
Subscriptions & Distribution
- Wired Stripe for tiered subscriptions and metered content limits.
- Built direct exports to Amazon KDP, Apple Books, and Audible.
The Results
✓Key Achievements
- Production launch with 25+ language support.
- Multi-LLM pipeline running OpenAI and Anthropic in production.
- Live Stripe subscription billing.
- Direct publishing pipeline to Amazon KDP, Apple Books, and Audible.
★Project Highlights
- 25+ supported languages.
- AI illustrations and AI-voice audiobooks.
- Figma-perfect responsive dashboard.
- Tiered Stripe subscription model.
Technologies Used
Frontend
Backend & Data
AI
Payments
