Phonon

Phonon

Gradium
+
+

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About

Phonon is an open-weight text-to-speech (TTS) model and inference runtime for developers adding speech generation to applications that need local, offline audio. It converts text into spoken audio and can stream speech as it is generated. The runtime provides Rust and Python interfaces, a Swift package for iOS and macOS, JavaScript for browsers, and Android libraries; it can also run as a self-hosted server with an OpenAI-compatible API. Depending on the model variant, it supports English, French, German, Spanish, and Portuguese. Phonon is intended for developers integrating speech into mobile, desktop, web, embedded, and server applications, including offline or privacy-sensitive use cases. The 31-million-parameter English model weights use the Apache 2.0 license; 40-million-parameter language-specific and multilingual weights use CC BY-NC 4.0. The runtime code is separately available under Apache 2.0 or MIT.

About

WhollyAPI is a hosted AI inference platform that gives developers a unified API for using AI models in applications and workflows. Its model catalog includes text generation, embeddings, image generation, video generation, speech synthesis and recognition, and other multimodal tasks. Model pages provide model information, usage demonstrations, API compatibility details, and usage-based pricing; text-generation pages document OpenAI-compatible chat-completion requests through WhollyAPI's serverless API. The service is aimed at developers and teams building AI-enabled software who want to access multiple model types through one hosted service instead of operating inference infrastructure themselves. Potential uses include generating or transforming text and images, creating video, processing audio, and adding model-powered features to applications. Available models, capabilities, and charges vary by model and usage.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and product teams building mobile, desktop, web, embedded, or server applications that need text-to-speech, including offline or privacy-sensitive use cases.

Audience

Developers and software teams building AI-enabled applications and workflows.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

No images available

Pricing

No information available.
Free Version Supported
Free Trial Not Supported

Pricing

$1
Charges are usage-based and vary by model and modality. Rates may be calculated per token, image, or another model-specific unit.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Gradium
Founded: 2025
France, United States
gradium.ai/phonon

Company Information

WhollyAPI
Founded: 2026
India
whollyapi.com

Alternatives

Alternatives

Qwen3-TTS

Qwen3-TTS

Alibaba
Piper TTS

Piper TTS

Rhasspy
Simba 3.2

Simba 3.2

Speechify
Scalattice

Scalattice

Robottik

Categories

Categories

Integrations

Hugging Face Supported

Integrations

Hugging Face Not Supported
Claim Phonon and update features and information
Claim Phonon and update features and information
Claim WhollyAPI and update features and information
Claim WhollyAPI and update features and information