NVIDIA Riva

Spec sheet

What it does

NVIDIA Riva is a GPU-accelerated collection of multilingual speech and translation microservices for real-time conversational AI.Read 21 Oct 2026 · nvidia.com

Purpose

NVIDIA Riva is a GPU-accelerated SDK for building customizable Speech AI applications with real-time performance.Read 10 Oct 2026 · docs.nvidia.com

Deployment

Riva supports deployment in the cloud, on premises, and at the edge, with scaling to hundreds of thousands of concurrent users.Read 10 Oct 2026 · docs.nvidia.com

Trial

The Riva developer page offers a free 90-day NVIDIA AI Enterprise license to try on existing infrastructure.Read 10 Oct 2026 · developer.nvidia.com

Headquarters

Santa Clara, California, USARead 28 Sep 2026 · developer.nvidia.com

Founded

1993Read 28 Sep 2026 · developer.nvidia.com

API protocol

Riva services are exposed through gRPC endpoints, with Python client interfaces supplied for application integration.Read 21 Oct 2026 · developer.nvidia.com

Automatic speech recognition

Riva provides customizable real-time and offline automatic speech recognition across languages including Arabic, Mandarin, English, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Russian and Spanish.Read 21 Oct 2026 · nvidia.com

Beta features

Zero Shot TTS and emotion mixing are listed as beta features.Read 10 Oct 2026 · docs.nvidia.com

Company founding

NVIDIA was founded on April 5, 1993 by Jensen Huang, Chris Malachowsky and Curtis Priem.Read 21 Oct 2026 · nvidia.com

Company headquarters and size

LinkedIn lists NVIDIA headquarters in Santa Clara, California and company size above 10,001 employees.Read 21 Oct 2026 · linkedin.com

Company legal name

The product is made by NVIDIA Corporation.Read 21 Oct 2026 · nvidia.com

Container and Kubernetes support

Riva is distributed as containers and includes Quick Start scripts and a Speech AI Skills Helm chart for Kubernetes deployments.Read 21 Oct 2026 · catalog.ngc.nvidia.com

Customization

Pretrained models can be fine-tuned with custom datasets and optimized for domain-specific speech and translation workloads.Read 21 Oct 2026 · developer.nvidia.com

Data handling

NVIDIA says Riva data can be processed on premises or in the customer’s cloud.Read 10 Oct 2026 · docs.nvidia.com

Deployment options

Riva can run on premises, in public clouds, at the edge and on embedded devices.Read 21 Oct 2026 · developer.nvidia.com

Deployment tooling

Riva supports Helm-managed cloud deployment.Read 10 Oct 2026 · docs.nvidia.com

Documentation depth

The documentation hub includes installation, Python and command-line clients, sample apps, model references, gRPC and Protocol Buffers, troubleshooting and upgrade guidance.Read 21 Oct 2026 · docs.nvidia.com

Embedded software stack

The current embedded matrix lists Ubuntu 24.04, CUDA 13.0.48, cuDNN 9.12.0, TensorRT 10.13.2.6, Triton 2.60.0 and Docker 28 or newer.Read 21 Oct 2026 · docs.nvidia.com

GetApp integration listing

GetApp lists Docker as Riva's single top integration and shows no submitted user reviews.Read 21 Oct 2026 · getapp.com

GPU platform requirement

The Riva license terms describe internal test and development use on systems that include NVIDIA GPUs, excluding production use under that grant.Read 10 Oct 2026 · docs.nvidia.com

GPU requirement

Riva development supports NVIDIA Turing or newer GPUs, with 16 GB or more of GPU memory recommended for data-center models.Read 21 Oct 2026 · docs.nvidia.com

HTTP and WebSocket APIs

Riva 2.26 adds WebSocket real-time and HTTP REST APIs for ASR and TTS on Jetson platforms.Read 21 Oct 2026 · docs.nvidia.com

Integration interfaces

Riva documents Python and command-line clients, and provides gRPC and Protocol Buffers API references.Read 10 Oct 2026 · docs.nvidia.com

Latency target

NVIDIA describes optimized Riva inference as running below 150 milliseconds and real-time interaction as below 300 milliseconds.Read 21 Oct 2026 · developer.nvidia.com

License status

Riva server software is distributed under NVIDIA license terms rather than an open-source license; the public client repositories use MIT licenses.Read 21 Oct 2026 · catalog.ngc.nvidia.com

Limit: cost model

A G2 reviewer says GPU-based pricing is unsuitable for many users.Read 21 Oct 2026 · g2.com

Limit: documentation learning curve

A G2 reviewer reports that NVIDIA documentation can be difficult for beginners and that initial component setup takes time to understand.Read 21 Oct 2026 · g2.com

Limit: setup complexity

G2 reviewers say installation and configuration can be daunting and require deep knowledge of GPU infrastructure and machine learning systems.Read 21 Oct 2026 · g2.com

LLM and RAG integration

NVIDIA positions Riva as a voice layer for applications using large language models and retrieval-augmented generation.Read 21 Oct 2026 · nvidia.com

Model customization

Riva supports pretrained models from NGC and custom-trained models with NVIDIA NeMo.Read 10 Oct 2026 · docs.nvidia.com

Neural machine translation

Riva supports offline and streaming text-to-text, speech-to-text and speech-to-speech translation for up to 32 listed languages.Read 21 Oct 2026 · nvidia.com

Praise: control and customization

G2 reviewers value keeping data under their control and customizing high-volume speech processing for transcription, captioning and agent-assist workflows.Read 21 Oct 2026 · g2.com

Praise: real-time performance

G2 reviewers repeatedly praise very low-latency transcription, including reports of millisecond-level response and strong GPU optimization.Read 21 Oct 2026 · g2.com

Rating on Capterra

0.0 out of 5 from 0 reviewsRead 21 Oct 2026 · capterra.com

Rating on G2

4.5 out of 5 from 18 reviewsRead 21 Oct 2026 · g2.com

Rating on GetApp

0.0 out of 5 from 0 reviewsRead 21 Oct 2026 · getapp.com

Rating on TrustRadius

8.7 out of 10 from 2 reviewsRead 21 Oct 2026 · trustradius.com

Recognition features

ASR features include automatic punctuation, word-level timestamps and confidences, speaker diarization, speech hints, and automatic speech translation.Read 10 Oct 2026 · docs.nvidia.com

Recognition modes

Automatic speech recognition supports offline or batch processing and streaming transcription with intermediate results at low latency.Read 10 Oct 2026 · docs.nvidia.com

Release news

Riva 2.26.0 added Nemotron-ASR English streaming recognition with bundled Sortformer speaker diarization on Jetson Thor.Read 21 Oct 2026 · docs.nvidia.com

SDK languages

NVIDIA publishes Python clients and C++ sample clients, while its GitHub organization also provides protocol buffers, tutorials and sample applications.Read 21 Oct 2026 · github.com

Security update

NVIDIA disclosed high- and medium-severity improper-access-control vulnerabilities in Riva and fixed affected versions through 2.19.0.Read 21 Oct 2026 · nvidia.custhelp.com

Self-hosting

The Quick Start workflow lets operators download models, initialize containers and run Riva locally with Docker.Read 21 Oct 2026 · catalog.ngc.nvidia.com

Speech and language services

Riva provides speech recognition, speech synthesis, and natural language processing through its Speech server API.Read 10 Oct 2026 · docs.nvidia.com

Speech synthesis

Text-to-speech supports streaming and offline inference, SSML input, output audio encoding, and custom pronunciation dictionaries.Read 10 Oct 2026 · docs.nvidia.com

Support channels

NVIDIA directs users to a developer forum for how-to questions, best practices and bug reports.Read 21 Oct 2026 · nvidia.com

Support resources

The Riva developer page links to documentation, tutorials, release notes, and NVIDIA developer forums.Read 10 Oct 2026 · developer.nvidia.com

System architecture

The Riva server supports Linux x86_64 or Linux aarch64 in the documented data-center release and L4T aarch64 for embedded deployments.Read 21 Oct 2026 · docs.nvidia.com

Text to speech

Riva supplies expressive male and female text-to-speech voices in several languages and supports voice customization.Read 21 Oct 2026 · nvidia.com

TrustRadius product scope

TrustRadius describes Riva as a GPU-accelerated speech and translation SDK covering speech-to-text, text-to-speech, multilingual ASR and translation.Read 21 Oct 2026 · trustradius.com

Plans and prices

Every NVIDIA Riva plan and price →

Where Specifiction places it

• AI voice generators#13 of 338.4
• Speech-to-Text Software#14 of 358.6
• Speech Recognition Software#16 of 328.5