Efficient AI text-to-speech model with 82M parameters delivering natural-sounding voice synthesis
Turn manuscripts into multi-voice audiobooks with AI voices for each character
Stage
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Founded
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Based in
SG
US
Pricing model
Open source
Not given
Pricing
Free to use. Free Chrome Extension with 10,000 characters free every month.
Free app download with free Chapter 1. Narrating manuscripts: $0.75 per 10,000 words. Writing from an idea: $1.00 per 10,000 words. Writing and narrating: $1.50 per 10,000 words. Credits are $0.10 each and never expire.
Key features
82M parameter efficiency for lightweight, scalable performance
Multilingual support including English, French, Korean, Japanese, and Mandarin
Customizable voice packs with multiple lifelike voice options
Automatic content segmentation for chapter and section detection
OpenAI-compatible API endpoint for easy integration
Real-time audio generation with NVIDIA GPU acceleration
Processes up to 510 tokens in a single pass for longer audio outputs
Chrome extension for reading webpages aloud
Upload Word, EPUB, PDF or TXT manuscripts up to 25 MB
Automatic chapter and character detection
Suggested AI voice for each character with audio samples
Background and lock-screen playback
Speed control and sleep timer
Switch between reading text and listening
Write novel, cover and audiobook from story idea
Export as M4B or MP3 audiobook files
What makes it different
Outperforms larger models like XTTS (467M params) and MetaVoice (1.2B params) despite having only 82M parameters
Open-source and free for both commercial and personal use under Apache 2.0 license
Lightweight architecture enabling deployment on CPU and GPU with minimal resources
Trained on high-quality, permissively licensed audio for accurate natural-sounding speech
Designed for scalability while preserving excellent audio quality
Automatic character voice assignment with AI voice samples to preview
Uploads stay private to your account and can be deleted anytime
Works seamlessly across iPhone, iPad and web with shared account and credits
Create audiobooks from ideas with automatic novel and cover generation
Kokoro TTS
NovelHive AI