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ease
features
design
support

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Description

Phonon serves as an open-weight text-to-speech (TTS) model and inference runtime designed for developers seeking to incorporate speech generation into applications that require local and offline audio capabilities. This innovative system transforms text into spoken audio and has the ability to stream speech in real-time as it is produced. The runtime offers interfaces for Rust and Python, a Swift package for iOS and macOS, JavaScript support for web browsers, and libraries for Android; it can also function as a self-hosted server compatible with OpenAI's API. Depending on the variant of the model used, it accommodates languages such as English, French, German, Spanish, and Portuguese. Phonon is tailored for developers aiming to integrate speech functionalities into mobile, desktop, web, embedded, and server applications, particularly in scenarios requiring offline access or enhanced privacy. The English model, which consists of 31 million parameters, is licensed under Apache 2.0, while the language-specific and multilingual models, featuring 40 million parameters, operate under CC BY-NC 4.0. Additionally, the runtime’s code is available under either the Apache 2.0 or MIT licenses, making it accessible for various development needs. This flexibility and wide-ranging support make Phonon a versatile choice for speech synthesis across different platforms.

Description

The QVAC SDK serves as a toolkit designed for developers looking to integrate on-device AI inference into their applications crafted with JavaScript/TypeScript or Python. It supplies a unified API to facilitate the execution of various supported language, vision, and speech models across both mobile and desktop platforms, encompassing features like model discovery and downloads, inference APIs, and optional connections to remote providers. With this toolkit, developers can create AI features that function offline, ensuring that prompts and processing occur directly on the device for local inference. Additionally, QVAC provides an OpenAI-compatible server alongside plugins that seamlessly link local models with developer tools. Aimed primarily at those developing AI-enhanced applications, the SDK's documentation outlines processes for setup, choosing models, handling tasks related to text generation, image, and audio, as well as invoking tools; the available functionalities can vary based on the chosen model and platform. Furthermore, the QVAC SDK is accessible as free, open-source software under the Apache 2.0 license, and using local inference does not necessitate a hosted QVAC account, making it even more appealing for developers. This flexibility and ease of use make the QVAC SDK a robust choice for integrating AI capabilities into modern applications.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

No images available

Screenshots View All

No images available

Integrations

Hugging Face Yes 
OpenClaw No 
OpenCode No 

Integrations

Hugging Face Yes 
OpenClaw Yes 
OpenCode Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Pricing Details

$0
Free and open source under Apache 2.0. Local inference has no subscription, API-key, or per-token charge.
Free Trial No 
Free Version Yes 

Deployment

Web-Based No 
On-Premises Yes 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based No 
On-Premises Yes 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Gradium

Founded

2025

Country

France, United States

Website

gradium.ai/phonon

Vendor Details

Company Name

Tether Data

Country

El Salvador

Website

qvac.tether.io/products/sdk

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