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- How to Build a $3K/Month AI Audiobook Side Hustle 🎧
How to Build a $3K/Month AI Audiobook Side Hustle 🎧
The simplest way to earn from books you didn’t write, in a voice you didn’t record
Rob Lara
April 15, 2025
DEEP DIVE
Over-ear headphones on top of a stack of books.
🕒 Read time: 6 min | 📄 Word count: ~1,100
TL;DR
Turn public domain books into AI-narrated audiobooks
Sell them on platforms like Gumroad or Audible
Takes 2–3 hours to create… no mic, no studio, no voice required
Realistic potential: $1K–$3K/month with a repeatable process
Why This Works (and Why Now)
If you’re starting a side project without expertise or a pre-built skillset, this guide is for you
Audiobooks are booming.
📈 Global audiobook market = $6B+ and growing
🧠 AI voice tools = scary good (and cheap)
⚖️ Public domain books = legally free to reuse and resell
That means, there’s huge opportunity - if it wasn’t clear enough, there are numerous pockets in VIRTUALLY every genre, so find your niche/interest and go! (While we cover public domain in this edition, there are many, many ways to go about this).
This side hustle works because it combines:
Free source material
Low upfront costs
Automated AI voice tools
High-value content people already want to buy
It’s repeatable, scalable, and AI makes it easy to pull off solo.
LET’S BREAK IT DOWN 👇
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