Phonon

Phonon

Gradium
+
+

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About

Dograh is an open source, self-hostable voice agent platform with a no-code workflow builder for creating production voice agents. Teams can choose their own inbound channels, speech-to-text, LLM, text-to-speech, and telephony providers, or replace the traditional cascade with speech-to-speech models for direct audio-in, audio-out conversations with natural turn-taking, interruption handling, and low latency. The platform supports inbound and outbound calling, widgets, telephony integrations, observability, traces, real-time analytics, hybrid pre-recorded voice plus TTS, and more than 70 languages. Its MCP server lets Claude Code, Cursor, OpenClaw, Codex, and other agent runtimes create, modify, and deploy voice agents directly from development environments. Dograh can run on your own servers, inside a private cloud or VPC, or in a managed environment, with support for models hosted entirely within your perimeter.

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.

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

Platforms Supported

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

Audience

Developers, businesses, and regulated organizations seeking to build, customize, deploy, and self-host production voice AI agents with control over models, integrations, telephony, and data

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.

Support

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

Support

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

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

1¢ per minute
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version 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 Supported
In Person Not Supported

Training

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

Company Information

Dograh
United States
www.dograh.com

Company Information

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

Alternatives

Alternatives

Qwen3-TTS

Qwen3-TTS

Alibaba
Piper TTS

Piper TTS

Rhasspy
Simba 3.2

Simba 3.2

Speechify
Chirp 3

Chirp 3

Google

Categories

AI Voice Agents Supported

Categories

Integrations

Hugging Face Supported
Amazon Web Services (AWS) Supported
Calendly Supported
Cartesia Sonic Supported
Cloudonix Supported
Codex CLI Supported
Cursor Supported
Deepgram Supported
Gemini Supported
Google Supported
Groq Supported
Inworld Supported
Microsoft Azure Supported
MiniMax Supported
Model Context Protocol (MCP) Supported
Slack Supported
Speechmatics Supported
Telnyx Supported
Twilio Supported
Vonage AI Studio Supported

Integrations

Hugging Face Supported
Amazon Web Services (AWS) Not Supported
Calendly Not Supported
Cartesia Sonic Not Supported
Cloudonix Not Supported
Codex CLI Not Supported
Cursor Not Supported
Deepgram Not Supported
Gemini Not Supported
Google Not Supported
Groq Not Supported
Inworld Not Supported
Microsoft Azure Not Supported
MiniMax Not Supported
Model Context Protocol (MCP) Not Supported
Slack Not Supported
Speechmatics Not Supported
Telnyx Not Supported
Twilio Not Supported
Vonage AI Studio Not Supported
Claim Dograh and update features and information
Claim Dograh and update features and information
Claim Phonon and update features and information
Claim Phonon and update features and information