+
+

Related Products

  • Google Cloud Speech-to-Text
    443 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • QEval
    30 Ratings
    Visit Website
  • Google AI Studio
    41 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    1,161 Ratings
    Visit Website
  • Qloo
    23 Ratings
    Visit Website
  • CTM
    939 Ratings
    Visit Website
  • Zoom Phone
    2,944 Ratings
    Visit Website
  • Community Phone
    1,597 Ratings
    Visit Website
  • Squaretalk
    314 Ratings
    Visit Website

About

Gradium is a voice AI platform for developers and organizations building speech-enabled applications and conversational agents. Its hosted APIs provide streaming text-to-speech, speech-to-text, speech translation, and speech-to-speech, with WebSocket and REST interfaces, real-time turn detection, pronunciation controls, and voice design or cloning features. A browser-based studio lets users try the models and manage voices, while documentation and SDK guides support application development. Use cases include voice agents, customer-service automation, live transcription, multilingual voice experiences, and spoken content generation. Gradium also publishes Phonon, an open-weight text-to-speech model designed for local, offline use in applications and on-device systems. Plans use credits for speech generation, transcription, and translation.

About

Leon is an open source personal assistant you can self-host on your own server, designed to act like a virtual brain that does things when you ask it to by leveraging AI concepts such as natural language processing, speech-to-text, and text-to-speech. It lets you interact via text or voice and can even operate offline to keep your data private and under your control, since Leon runs where you choose rather than in the cloud. Built with a modular, skills-based architecture on Node.js and Python, Leon gives users the flexibility to create, install, and share custom modules to extend its functionality for a wide range of tasks and workflows. There’s no hard limit on what you can automate beyond your own imagination. Its modular structure lets contributors and developers build and integrate new capabilities easily, encouraging community growth and customization.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not 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 organizations building voice-enabled applications, conversational agents, and speech workflows, including enterprise teams.

Audience

Developers, privacy advocates, and tech enthusiasts who want an AI personal assistant that runs on their own server to automate tasks and interact with them using natural language

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 Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$0/month
The free tier includes 45,000 credits. The XS plan is $13/month and includes 225,000 credits. Credits are shared across speech services; monthly plan credits do not roll over. Annual billing saves one month.
Free Version Supported
Free Trial Not Supported

Pricing

Free
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 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
gradium.ai/

Company Information

Leon
United States
getleon.ai/

Alternatives

Alternatives

OpenClaw

OpenClaw

Molty
Cofounder

Cofounder

The General Intelligence Company Of New York
Fish Audio

Fish Audio

Hanabi AI
AstrBot

AstrBot

AstrBot AI

Categories

Categories

Agentic AI Supported
AI Agents Supported
AI Assistants Supported

Integrations

Amazon Web Services (AWS) Not Supported
Eden AI Supported
Google Cloud Platform Not Supported
IBM Watson Not Supported
LiveKit Supported
Node.js Not Supported
Pipecat Supported
Python Not Supported
Vercel Not Supported

Integrations

Amazon Web Services (AWS) Supported
Eden AI Not Supported
Google Cloud Platform Supported
IBM Watson Supported
LiveKit Not Supported
Node.js Supported
Pipecat Not Supported
Python Supported
Vercel Supported
Claim Gradium and update features and information
Claim Gradium and update features and information
Claim Leon and update features and information
Claim Leon and update features and information