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NVIDIA® Riva is a set of GPU-accelerated multilingual speech and translation microservices for building fully customizable, real-time conversational AI pipelines. Riva includes automatic speech recognition (ASR), text-to-speech (TTS), and neural machine translation (NMT) and is deployable in all clouds, in data centers, at the edge, or on embedded devices. With Riva, organizations can add speech and translation capabilities with large language models (LLMs) and retrieval-augmented generation (RAG) to transform chatbots into powerful multilingual assistants and avatars.

Experience Now Forum Documentation

See Riva in Action

  Read the NVIDIA Riva Solution Brief

Try NVIDIA Riva Automatic Speech Recognition

Select the language and check out how Riva ASR delivers highly accurate transcription in real time by providing an input through your microphone or uploading a .wav file from your device.

Note: The duration of each sample is limited to 30 seconds.

Try saying something

Try NVIDIA Riva Text-to-Speech

Select a voice and type in a test sentence to hear Riva’s out-of-the-box English female or male voice.

Note: Input text is limited to 400 characters.

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Use of Riva skills is subject to NVIDIA Riva terms of use. Your data will be used to improve NVIDIA products and services.

Ways to Get Started With NVIDIA Riva

Find the right tools to build and deploy fully customizable, multilingual speech and translation AI applications.

 Download Containers and Models for Development

Try From Your Browser

Quickly experience NVIDIA Riva from your browser—without any setup—with sample data via API and UI-based demos for free.

Experience the NVIDIA API Catalog
Get Access to Riva AI Workflows

Access Speech AI Workflows for Development

Accelerate development time with packaged speech AI workflows available as a free trial on NVIDIA LaunchPad.

Try the Workflows on LaunchPad
Purchase Riva for Deployment at Scale

Deploy in Production

Move from pilot to production with the assurance of security, API stability, and support with NVIDIA AI Enterprise.

Contact Us About Purchasing Riva Apply for a 90-Day NVIDIA AI
Enterprise Evaluation

Introductory Resources

Quick-Start Guide

Get step-by-step instructions for deploying pretrained models as services on a local workstation and how to interact with them through a client.

Get Started

Introductory Blog

Learn about Riva’s architecture, key features, and components for building speech and translation AI services.

Read Blog

Introductory Webinar

Build and deploy end-to-end speech and translation AI pipelines using Riva.

Watch Webinar

Use-Case Demo

See how Computacenter, Tarteel, Floatbot, Minerva CQ and others use Riva for multilingual transcription, translation, and voice of their agent assists, AI virtual assistants, and digital humans.

Watch Video

Development Starter Kits

Access everything you need to start developing your speech and translation AI application with Riva containers and models, including tutorials, notebooks, forums, release notes, and documentation.

Automatic Speech Recognition

Achieve high transcription accuracy for Arabic, English, French, German, Hindi, Italian, Japanese, Korean, Mandarin, Portuguese, Russian, and Spanish with state-of-the-art models pretrained on thousands of hours of audio on NVIDIA supercomputers.

  Speech Recognition Documentation

  Quick Start Guide

  Speech Recognition Tutorials


Customize across English, German, Italian, Mandarin, and Spanish TTS pipelines for the voice and intonation you want.

  TTS Documentation

  Quick Start Guide

  TTS Tutorials

Neural Machine Translation

Integrate highly accurate text-to-text, speech-to-text, or speech-to-speech translation for up to 32 languages into your conversational application pipelines.

  NMT Documentation

  Quick Start Guide

  NMT Tutorials

Demo Video Tutorials

Learn to set up and start using Riva—from accessing NVIDIA NGC and working with the Riva Skills Quick Start guide, to running inference with ASR, TTS, and NMT models.

The Basics of NVIDIA NGC

The Basics of NVIDIA NGC

Watch Video
Quick Start Guide for Riva

Quick Start Guide for Riva

Watch Video
Exploring Riva’s Capabilities

Exploring Riva’s Capabilities

Watch Video

Self-Paced Training

Learn anytime, anywhere, with just a computer and an internet connection through the NVIDIA Deep Learning Institute (DLI).

Riva Speech API Demo

Riva Speech API Demo

Take This DLI Course
Get Started with Highly Accurate Custom ASR for Speech AI

Get Started With Highly Accurate Custom ASR for Speech AI

Take This DLI Course

Ethical AI

NVIDIA platforms and application frameworks enable developers to build a wide array of AI applications. Consider potential algorithmic bias when choosing or creating the models being deployed. Also, work with the model’s developer to ensure that it meets the requirements for the relevant industry and use case; that the necessary instruction and documentation are provided to understand error rates, confidence intervals, and results; and that the model is being used under the conditions and in the manner intended.

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