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What is Phonon?

Phonon is an open-weight text-to-speech (TTS) model and inference runtime that caters to developers who wish to integrate speech generation into applications with local and offline audio functionalities. This cutting-edge system converts written text into spoken words and can stream speech in real-time as it is generated. It provides interfaces for programming languages such as Rust and Python, includes a Swift package for iOS and macOS, offers JavaScript support for web browsers, and has libraries available for Android; it can also operate as a self-hosted server compatible with OpenAI's API. The model is designed to support various languages, including English, French, German, Spanish, and Portuguese, depending on the specific variant employed. Phonon is ideal for developers looking to embed speech capabilities into mobile, desktop, web, embedded, and server applications, particularly in situations that prioritize offline use or require enhanced privacy. The English model is comprised of 31 million parameters and is licensed under Apache 2.0, while the language-specific and multilingual models, with 40 million parameters, are available under CC BY-NC 4.0. Furthermore, the runtime's source code is offered under either the Apache 2.0 or MIT licenses, ensuring it is accessible for diverse development requirements. This adaptability and extensive support position Phonon as a highly versatile option for speech synthesis across a variety of platforms, making it a valuable asset for developers in the field.

What is Miso TTS?

Miso Labs is focused on creating emotive voice foundation models that empower developers to craft voice agents with a warm, human-like quality, steering clear of mechanical or sluggish tones. Their flagship product, Miso TTS, boasts a remarkable 8-billion-parameter transformer model, which is adept at producing emotive speech and engaging dialogue, with open-source weights available on Hugging Face and an API launch anticipated soon. Designed for real-time conversational exchanges, Miso ensures a quick response time of 110ms, which helps to maintain a natural conversational flow and avoids the uncomfortable pauses that often plague AI voice agents. Additionally, it includes one-shot voice cloning features, allowing users to reproduce a voice using just a ten-second audio clip while keeping the agent's voice consistent throughout the dialogue. Miso Labs also emphasizes local and sovereign deployment alternatives, offering open-source models tailored for local use, alongside on-premises support for enterprises needing to safeguard their sensitive information. By adopting this thorough approach, Miso Labs significantly enhances user experiences and provides organizations with the flexibility required to effectively manage their voice technology systems. This commitment to innovation ensures that developers can create more personalized and engaging interactions through advanced voice technology.

Media

No images available

Media

Integrations Supported

Hugging Face

Integrations Supported

Hugging Face

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version

Pricing Information

Pricing not provided

Supported Platforms

Android
iPhone
iPad
Windows
Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Gradium

Date Founded

2025

Company Location

France, United States

Company Website

gradium.ai/phonon

Company Facts

Organization Name

Miso TTS

Date Founded

2025

Company Location

United States

Company Website

www.misolabs.ai/

Categories and Features

Categories and Features

AI Models

Not specified

AI Voice Models

Not specified

Text to Speech

Not specified

Voice Cloning

Not specified

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