NVIDIA today announced Nemotron-4 340B, a family of open models that developers can use to generate synthetic data for training large language models (LLMs) for commercial applications across healthcare, finance, manufacturing, retail and every other industry.
High-quality training data plays a critical role in the performance, accuracy and quality of responses from a custom LLM - but robust datasets can be prohibitively expensive and difficult to access.
Through a uniquely permissive open model license, Nemotron-4 340B gives developers a free, scalable way to generate synthetic data that can help build powerful LLMs.
The Nemotron-4 340B family includes base, instruct and reward models that form a pipeline to generate synthetic data used for training and refining LLMs. The models are optimized to work with NVIDIA NeMo, an open-source framework for end-to-end model training, including data curation, customization and evaluation. They're also optimized for inference with the open-source NVIDIA TensorRT-LLM library.
Nemotron-4 340B can be downloaded now from the NVIDIA NGC catalog and from Hugging Face, where developers can also use the Train on DGX Cloud service to easily fine-tune open AI models. Developers will soon be able to access the models at ai.nvidia.com, where they'll be packaged as an NVIDIA NIM microservice with a standard application programming interface that can be deployed anywhere.
Navigating Nemotron to Generate Synthetic Data LLMs can help developers generate synthetic training data in scenarios where access to large, diverse labeled datasets is limited.
The Nemotron-4 340B Instruct model creates diverse synthetic data that mimics the characteristics of real-world data, helping improve data quality to increase the performance and robustness of custom LLMs across various domains.
Then, to boost the quality of the AI-generated data, developers can use the Nemotron-4 340B Reward model to filter for high-quality responses. Nemotron-4 340B Reward grades responses on five attributes: helpfulness, correctness, coherence, complexity and verbosity. It's currently first place on the Hugging Face RewardBench leaderboard, created by AI2, for evaluating the capabilities, safety and pitfalls of reward models.
In this synthetic data generation pipeline, (1) the Nemotron-4 340B Instruct model is first used to produce synthetic text-based output. An evaluator model, (2) Nemotron-4 340B Reward, then assesses this generated text - providing feedback that guides iterative improvements and ensures the synthetic data is accurate, relevant and aligned with specific requirements. Researchers can also create their own instruct or reward models by customizing the Nemotron-4 340B Base model using their proprietary data, combined with the included HelpSteer2 dataset.
Fine-Tuning With NeMo, Optimizing for Inference With TensorRT-LLM Using open-source NVIDIA NeMo and NVIDIA TensorRT-LLM, developers can optimize the efficiency of their instruct and reward models to generate synthetic data and to score responses.
All Nemotron-4 340B models are optimized with TensorRT-LLM to take advantage of tensor parallelism, a type of model parallelism in which individual weight matrices are split across multiple GPUs and servers, enabling efficient inference at scale.
Nemotron-4 340B Base, trained on 9 trillion tokens, can be customized using the NeMo framework to adapt to specific use cases or domains. This fine-tuning process benefits from extensive pretraining data and yields more accurate outputs for specific downstream tasks.
A variety of customization methods are available through the NeMo framework, including supervised fine-tuning and parameter-efficient fine-tuning methods such as low-rank adaptation, or LoRA.
To boost model quality, developers can align their models with NeMo Aligner and datasets annotated by Nemotron-4 340B Reward. Alignment is a key step in training LLMs, where a model's behavior is fine-tuned using algorithms like reinforcement learning from human feedback (RLHF) to ensure its outputs are safe, accurate, contextually appropriate and consistent with its intended goals.
Businesses seeking enterprise-grade support and security for production environments can also access NeMo and TensorRT-LLM through the cloud-native NVIDIA AI Enterprise software platform, which provides accelerated and efficient runtimes for generative AI foundation models.
Evaluating Model Security and Getting Started The Nemotron-4 340B Instruct model underwent extensive safety evaluation, including adversarial tests, and performed well across a wide range of risk indicators. Users should still perform careful evaluation of the model's outputs to ensure the synthetically generated data is suitable, safe and accurate for their use case.
For more information on model security and safety evaluation, read the model card.
Download Nemotron-4 340B models via NVIDIA NGC and Hugging Face. For more details, read the research papers on the model and dataset.
See notice regarding software product information.
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
09/10/2026
September 10 2026, 06:00 (PDT) Dolby Expands Dolby OptiView Platform with New Capabilities at IBC 2026
New Sports Intelligence helps providers better unders...
07/10/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...
30/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/09/2026
The An Evening with Emerson, Lake and Palmer tour brings one of rock's most iconic bands back to the stage. These performances seamlessly blend live foota...
30/09/2026
Schibsted Media, one of Norways largest and most influential digital media publishers and content producers, has invested in mixers and digital signal processor...
30/09/2026
Big Blue Marble announces the addition of live multiview channels to Cloud Video Kit, its broadcast-grade video processing platform. The feature is powered by A...
30/09/2026
Leading video software provider Synamedia today announced that Telekom Slovenije, Slovenia's largest provider of telecommunications and TV services, is open...
30/09/2026
PODCAST EXPO 2026 Recorded Using Blackmagic Design Workflow
Brie Clayton September 29, 2026
0 Comments
Conference featuring 24 sessions over two days ...
30/09/2026
IBC2026 Show Report
David Kirk September 29, 2026
0 Comments
The International Broadcasting Convention has long been Europe's equivalent of the US...
30/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/09/2026
Mavis has launched Mavis Camera 8.2, the latest release of its professional camera app for the iPhone and iPad. This update brings support for iPhone 18 Pro and...
30/09/2026
How to Shop Well Now starts Monday at 9.35pm
on RT One and RT Player
On the...
30/09/2026
Building on nearly a decade of co-engineering, CoreWeave has built NVIDIA compute, networking and software into a cloud purpose-built for AI that's still re...
29/09/2026
Oak View Group (OVG) has announced Cisco as an Official Technology Partner, with plans to standardize infrastructure across its venue network on Cisco solutions...
29/09/2026
SportsNet Pittsburgh (SNP) won three honors at the 2026 Mid-Atlantic Emmy Awards.
Program awards went to Bucs BP in the Sports Program Live category (produced ...
29/09/2026
The Professional Women's Hockey League has announced home openers for all 12 teams for the 2026-27 season, along with a broadcast partnership with CBC under...
29/09/2026
Manifold technologies has been recognized as a contributor to the Media eXchange...
29/09/2026
FuboTV has announced My Local Sports, allowing subscribers in select markets to add their local regional sports network (RSN) as an add-on to a Fubo Sports subs...
29/09/2026
Asian News International (ANI), a wire agency and video news provider based in India, has deployed Grass Valley's AMPP Media Operating System and Framelight...
29/09/2026
South African Broadcasting Corporation (SABC) has deployed Ikegami UHK-X600 cameras as part of an upgrade to IP-based production infrastructure. The deployment ...
29/09/2026
REMI, REMCO models will drive the bulk of the broadcaster's NHL productions ...
29/09/2026
Three years in, the facility is supporting more centralized race production, com...
29/09/2026
NBC, Peacock, and NBSN are carrying all four Wild Card series with a production ...
29/09/2026
19 Nonfiction Projects Across All Stages of Production to Receive More Than $1 million in Support as Documentary Film Program Approaches 25th Anniversary
LOS ...
29/09/2026
Two new plug-ins launch alongside updated bundles
Zynaptiq have just announced the launch of two new plug-ins, alongside new and improved versions of two of...
29/09/2026
All-in-one bus processor revealed
Wes Audio's ng product range has come a long way since it was first introduced, and now includes a tasty selection of ...
29/09/2026
eds3_5_jq(document).ready(function($) { $(#eds_sliderM519).chameleonSlider_2_1({ content_source:......
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Ikegami announces that the South African Broadcasting Corporation, SABC, has chosen Ikegami UHK-X600 camera systems as part of an advance to IP-based operation ...
29/09/2026
Blendkit Offers 20% Discount to Celebrate Crossing 150K Asset Milestone
Brie Clayton September 29, 2026
0 Comments
Blendkit, the largest 3D asset libr...
29/09/2026
Interactive streaming specialist Ease Live supported more than 76.5 million fan sessions across three major European media operators during this summers FIFA Wo...
29/09/2026
Ease Live has added support for VAST (Video Ad Serving Template) to its graphical overlay technology, opening up new ways for broadcasters, streamers and rights...
29/09/2026
Rise AV has announced the launch of the inaugural Rise AV Awards, a new global awards programme celebrating the women, advocates and organisations across the AV...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/09/2026
Clear-Com announced that First Baptist Nashville has upgraded its production communications with a Clear-Com intercom solution as part of a comprehensive sanct...
29/09/2026
Blackmagic Cinema Camera 6K Captured Action Shots for Sketch
Brie Clayton September 28, 2026
0 Comments
Camera's portable design and dynamic range...
29/09/2026
Kean Production Services Deploys AJA ColorBox to Deliver Consistent, Accurate Co...
NVIDIA today announced Nemotron-4 340B, a family of open models that developers can use to generate synthetic data for training large language models (LLMs) for commercial applications across healthcare, finance, manufacturing, retail and every other industry.
