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What is Zyphra Zonos?

Zyphra is excited to announce the beta launch of Zonos-v0.1, featuring two advanced and real-time text-to-speech models that incorporate high-fidelity voice cloning technology. This release includes a 1.6B transformer model and a 1.6B hybrid model, both distributed under the Apache 2.0 license. Considering the difficulties in measuring audio quality quantitatively, we assert that the quality of output generated by Zonos matches or exceeds that of leading proprietary TTS systems currently on the market. Moreover, we believe that providing access to such high-quality models will significantly enhance progress in TTS research. The model weights for Zonos are readily available on Huggingface, along with sample inference code hosted in our GitHub repository. In addition, Zonos can be accessed through our model playground and API, which offers simple and competitive flat-rate pricing options for users. To showcase Zonos's performance, we have compiled a series of sample comparisons against existing proprietary models that illustrate its exceptional capabilities. This project underscores our dedication to promoting innovation within the text-to-speech technology sector, and we anticipate that it will inspire further advancements in the field.

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.

Media

Media

No images available

Integrations Supported

Hugging Face
GitHub

Integrations Supported

Hugging Face

API Availability

Has API

API Availability

Has API

Pricing Information

$0.02 per minute
Free Trial Offered?

Pricing Information

Pricing not provided
Free Version

Supported Platforms

SaaS

Supported Platforms

Android
iPhone
iPad
Windows
Mac
On-Prem
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Zyphra

Company Location

United States

Company Website

www.zyphra.com/post/beta-release-of-zonos-v0-1

Company Facts

Organization Name

Gradium

Date Founded

2025

Company Location

France, United States

Company Website

gradium.ai/phonon

Categories and Features

AI Models

Not specified

AI Voice Models

Not specified

Text to Speech

Not specified

Voice Cloning

Not specified

Categories and Features

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