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What is Gradium?

Gradium provides a specialized voice AI platform designed for developers and businesses aiming to integrate speech functionalities and conversational interfaces into their applications. This platform features hosted APIs that offer a wide range of capabilities, such as streaming text-to-speech, converting speech to text, translating speech, and facilitating speech-to-speech interactions, with access available through both WebSocket and REST interfaces. In addition, it includes advanced features like real-time turn detection, adjustments for pronunciation, and options for voice design or cloning. Users can easily explore various models and manage voice settings through an intuitive web-based studio, while detailed documentation and SDK resources support the application development process. The potential use cases for this technology cover areas such as virtual voice agents, customer service automation, live transcription, multilingual voice interactions, and the generation of audible content. Furthermore, Gradium has launched Phonon, an open-weight text-to-speech model aimed at offline implementation within applications and on-device environments. The platform employs a credit-based payment model for services that include speech generation, transcription, and translation, providing users with both flexibility and scalability. By combining these diverse features and options, Gradium stands out as a highly adaptable solution for anyone seeking to enrich their applications with cutting-edge voice technology. The extensive capabilities offered by Gradium make it a vital tool in the rapidly evolving landscape of voice AI.

What is AstrBot?

AstrBot serves as a flexible, open-source AI assistant and chatbot framework that caters to a wide range of uses in messaging, automation, and teamwork. It operates effortlessly within numerous messaging platforms and boasts an agent runtime that supports Sub-Agents, complex workflows, tool integrations, context management, scheduled tasks, runtime controls, and secure environments for performing real-world operations. The platform enhances its AI capabilities through the integration of native MCP and Skills, while its plugin-driven architecture provides users with access to over 1,000 extensions created by the community, all designed to increase productivity, promote collaboration, manage content workflows, and connect with external systems. Supporting multiple AI providers like OpenAI, Google, and Anthropic, AstrBot facilitates easy model switching and offers features such as text generation, visual analysis, speech recognition, speech synthesis, and embedding functions. Furthermore, it includes an extensive knowledge base that can parse PDF, DOCX, and Markdown files, utilizes a combination of dense and BM25 retrieval techniques, and permits reference to several knowledge bases within a single conversation, enhancing user experience. Ultimately, AstrBot emerges as an advanced solution that significantly improves communication and productivity in various settings, making it an invaluable tool for individuals and organizations alike.

Media

No images available

Media

Integrations Supported

Eden AI
LiveKit
Pipecat

Integrations Supported

Anthropic
DingTalk
Discord
Docker
Google AI Overviews
Lark
Markdown
Model Context Protocol (MCP)
Modelflare
OpenAI
QQ
Slack
Telegram
WeChat

API Availability

Has API

API Availability

Pricing Information

$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

Pricing Information

Pricing not provided

Supported Platforms

SaaS
On-Prem

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Gradium

Date Founded

2025

Company Location

France

Company Website

gradium.ai/

Company Facts

Organization Name

AstrBot AI

Company Location

China

Company Website

astrbot.app/

Categories and Features

Speech to Text

Not specified

Text to Speech

Not specified

Voice Cloning

Not specified

Categories and Features

Agentic AI

Not specified

AI Assistants

Not specified

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