Efficient AI text-to-speech model with 82M parameters delivering natural-sounding voice synthesis
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Stage
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Founded
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Based in
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Pricing model
Open source
Freemium
Pricing
Free to use. Free Chrome Extension with 10,000 characters free every month.
Free: 25 credits on sign-up for image generation. Starter: $1.99 for 1,500 credits. Plus: $9.99 for 10,000 credits (most popular). Pro: $99.99 for 100,000 credits. Pay-as-you-go with no subscription; credits expire after 60 days. GPT Image 2 Saver costs $0.005 per image.
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
31,000+ prompt templates
Support for multiple image models including GPT Image 2, Nano Banana and Seedream
Web-based image generation with integrated generator
Each template includes full prompt text, metadata, categories and example images
Machine-readable access through OpenAPI, Agent Skills and MCP
Templates translated into 18 languages
Free browsing and copying of all templates without account
Prompt templates with recommended models and aspect ratios
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
Supports multiple leading image generation models in one place
All templates free to copy; no account or payment required for browsing
Machine-readable API and dataset access for developers and AI agents
Prompts sourced from open-licensed collections with full attribution and links to creators
Kokoro TTS
GPT Image Hub