Phonon

Phonon

Gradium
Voxtral

Voxtral

Mistral AI
+
+

Related Products

  • LTX
    182 Ratings
    Visit Website
  • Google Cloud Speech-to-Text
    443 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • Aikido Security
    364 Ratings
    Visit Website
  • QEval
    30 Ratings
    Visit Website
  • Qloo
    23 Ratings
    Visit Website
  • AnalyticsCreator
    46 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    1,161 Ratings
    Visit Website
  • BAND
    3 Ratings
    Visit Website
  • Okyline
    2 Ratings
    Visit Website

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

Voxtral models are frontier open source speech‑understanding systems available in two sizes—a 24 B variant for production‑scale applications and a 3 B variant for local and edge deployments, both released under the Apache 2.0 license. They combine high‑accuracy transcription with native semantic understanding, supporting long‑form context (up to 32 K tokens), built‑in Q&A and structured summarization, automatic language detection across major languages, and direct function‑calling to trigger backend workflows from voice. Retaining the text capabilities of their Mistral Small 3.1 backbone, Voxtral handles audio up to 30 minutes for transcription or 40 minutes for understanding and outperforms leading open source and proprietary models on benchmarks such as LibriSpeech, Mozilla Common Voice, and FLEURS. Accessible via download on Hugging Face, API endpoint, or private on‑premises deployment, Voxtral also offers domain‑specific fine‑tuning and advanced enterprise features.

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 product teams requiring a solution to build multilingual voice interfaces and real‑time speech‑to‑action applications

Support

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

Support

Phone Support 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

Pricing

No information available.
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not 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 Supported
In Person Supported

Company Information

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

Company Information

Mistral AI
Founded: 2023
France
mistral.ai/news/voxtral

Alternatives

Qwen3-TTS

Qwen3-TTS

Alibaba

Alternatives

Piper TTS

Piper TTS

Rhasspy
Simba 3.2

Simba 3.2

Speechify
Chirp 3

Chirp 3

Google

Categories

Categories

AI Models Supported
Speech to Text Supported
Transcription Supported

Integrations

Hugging Face Supported
ExecuTorch Not Supported
LM Studio Bionic Not Supported
LazyTyper Not Supported
Mistral AI Not Supported
Vision Agents Not Supported

Integrations

Hugging Face Supported
ExecuTorch Supported
LM Studio Bionic Supported
LazyTyper Supported
Mistral AI Supported
Vision Agents Supported
Claim Phonon and update features and information
Claim Phonon and update features and information
Claim Voxtral and update features and information
Claim Voxtral and update features and information