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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

Best-in-Market Speech-to-Text & Voice AI for Enterprises. Speechmatics delivers industry-leading Speech-to-Text and Voice AI for enterprises needing unrivaled accuracy, security, and flexibility. Our enterprise-grade APIs provide real-time and batch transcription with exceptional precision—across the widest range of languages, dialects, and accents. Powered by Foundational Speech Technology, Speechmatics supports mission-critical voice applications in media, contact centers, finance, healthcare, and more. With on-prem, cloud, and hybrid deployment, businesses maintain full control over data security while unlocking voice insights. Trusted by global leaders, Speechmatics is the top choice for best-in-class transcription and voice intelligence. 🔹 Unmatched Accuracy – Superior transcription across languages & accents 🔹 Flexible Deployment – Cloud, on-prem, and hybrid 🔹 Enterprise-Grade Security – Full data control 🔹 Real-Time & Batch Processing – Scalable transcription

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 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

Conversational AI, contact centers, healthcare, media & entertainment, education technology, software, CRM, consumer electronics, security, government and defence

Support

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

$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

$0 per month
480 minutes of speech-to-text free per month
(240 minutes of batch, 240 minutes of real-time)
(3,000 minutes of Voice Agent - Flow free per month)

Batch Transcription
$0.0050/min for Standard
$0.0083/min for Enhanced

Real-Time Transcription
$0.0067/min for Standard
$0.0117/min for Enhanced

20% discount over 500 hr/month for all transcription.
Plus, larger volume discounts are available for Enterprise.

Voice Agent - Flow
$0.0537 /min

20% volume discount over 100 hr/month for Voice Agents.
Plus, larger volume discounts are available for Enterprise.
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 Supported
Live Online Supported
In Person Supported

Company Information

Gradium
Founded: 2025
France
gradium.ai/

Company Information

Speechmatics
Founded: 2006
United Kingdom
www.speechmatics.com

Alternatives

Alternatives

SoapBox

SoapBox

Soapbox Labs
Fish Audio

Fish Audio

Hanabi AI
MAI-Transcribe-1

MAI-Transcribe-1

Microsoft AI

Categories

Categories

Emotion Recognition Features

Facial Emotions Not Supported
Facial Expression Analysis Not Supported
Machine Learning Not Supported
Photo Emotions Not Supported
Speech Emotions Not Supported
Video Emotions Not Supported
Written Text Emotions Supported

Machine Learning Features

Deep Learning Supported
ML Algorithm Library Supported
Model Training Supported
Natural Language Processing (NLP) Supported
Predictive Modeling Supported
Statistical / Mathematical Tools Not Supported
Templates Not Supported
Visualization Not Supported

Natural Language Processing Features

Co-Reference Resolution Not Supported
In-Database Text Analytics Not Supported
Named Entity Recognition Supported
Natural Language Generation (NLG) Not Supported
Open Source Integrations Not Supported
Parsing Not Supported
Part-of-Speech Tagging Not Supported
Sentence Segmentation Not Supported
Stemming/Lemmatization Not Supported
Tokenization Not Supported

Speech Recognition Features

Audio Capture Not Supported
Automatic Form Fill Not Supported
Automatic Transcription Supported
Call Analysis Supported
Concatenated Speech Not Supported
Continuous Speech Supported
Customizable Macros Not Supported
Multi-Languages Supported
Specialty Vocabularies Supported
Speech-to-Text Analysis Supported
Variable Frequency Not Supported
Voice Recognition Supported

Transcription Features

AI / Machine Learning Supported
Annotations Not Supported
Audio/Video File Upload Not Supported
Automatic Transcription Supported
Collaboration Tools Not Supported
File Sharing Not Supported
For Manual Transcription Not Supported
Full Text Search Supported
Multi-Language Support Supported
Natural Language Processing (NLP) Supported
Playback Controls Not Supported
Speech Recognition Supported
Subtitles Supported
Text Editor Not Supported
Timecoding Supported

Integrations

LiveKit Supported
Docker Not Supported
Dograh Not Supported
Eden AI Supported
ElevenLabs Not Supported
HoduCC Not Supported
MachinesFluent Not Supported
Pipecat Supported
Python Not Supported
Quickwork Not Supported
Recall.ai Not Supported
Sensay Not Supported
VMware Cloud Not Supported
Vapi AI Not Supported

Integrations

LiveKit Supported
Docker Supported
Dograh Supported
Eden AI Not Supported
ElevenLabs Supported
HoduCC Supported
MachinesFluent Supported
Pipecat Not Supported
Python Supported
Quickwork Supported
Recall.ai Supported
Sensay Supported
VMware Cloud Supported
Vapi AI Supported
Claim Gradium and update features and information
Claim Gradium and update features and information
Claim Speechmatics and update features and information
Claim Speechmatics and update features and information