Model Overview

Description:

The Riva-Translate-4B-Instruct-v1.1 Neural Machine Translation model translates text in 12 languages. The supported languages are: English(en), German(de), European Spanish(es-ES), LATAM Spanish(es-US), France(fr), Brazillian Portugese(pt-BR), Russian(ru), Simplified Chinese(zh-CN), Traditional Chinese(zh-TW), Japanese(ja),Korean(ko), Arabic(ar). It supports both sentence and document level translation. The model delivers a significant performance uplift compared to all previous in-house NMT models. This model is ready for commercial/non-commercial use.

License/Terms of Use

GOVERNING TERMS: This trial service is governed by the NVIDIA API Trial Terms of Service. Use of this model is governed by the NVIDIA Community Model License ADDITIONAL INFORMATION: Apache 2.0.

Deployment Geography:

Global

Use Case:

Translators, marketers, and web developers who deliver content in multiple languages.

Release Date:

Build.nvidia.com 12/11/2025 via Link

References(s):

[1] Vaswani, Ashish, et al. "Attention is all you need." arXiv preprint arXiv:1706.03762 (2017).
[2] https://github.com/openai/tiktoken
[3] https://en.wikipedia.org/wiki/BLEU
[4] https://github.com/mjpost/sacreBLEU
[5] https://github.com/Unbabel/COMET
[6] NVIDIA NeMo Toolkit

Model Architecture:

Architecture Type: Transformer

Network Architecture: Decoder-only

This model was developed based on Transformer architecture originally presented in "Attention Is All You Need" paper [1]. It is a fine-tuned version of a 4B Base model that was pruned and distilled from nvidia/Mistral-NeMo-Minitron-8B-Base using our LLM compression technique. The model was trained using a multi-stage CPT and SFT. It uses tiktoken [2] as the tokenizer. The model supports a context length of 8K tokens.

Input:

Input Type(s): Text

Input Format: String

Input Parameters: One-Dimensional (1D)

Other Properties Related to Input: This model supports a context length of 8K.

Output:

Output Type(s): Text

Output Format: String

Output Parameters: One-Dimensional (1D)

Other Properties Related to Output: This model supports a context length of 8K.

Our AI models are designed and/or optimized to run on NVIDIA GPU-accelerated systems. By leveraging NVIDIA’s hardware (e.g. GPU cores) and software frameworks (e.g., CUDA libraries), the model achieves faster training and inference times compared to CPU-only solutions.

Prompt Format:

We recommend using the following prompt template, which was used to fine-tune the model. The model may not perform optimally without it.

<s>System
You are an expert at translating text from {Source_language} to {Target_language}.</s>
<s>User
What is the {Target_language} translation of the sentence: {Input_Sentence}?</s>
<s>Assistant\n
<br>

Performance:

COMET score of any2en and en2any direction for Flores-101 dataset (Higher score is better)

Software Integration:

Runtime Engine(s): NeMo Framework 24.09

Supported Hardware Microarchitecture Compatibility:

• NVIDIA Ampere
  
• NVIDIA Blackwell
  
• NVIDIA Hopper
  
• NVIDIA Lovelace
  

Supported Operating System(s):

• Linux
  

Model Version(s):

Riva-Translate-4B-Instruct-v1.1

Training & Evaluation:

Training Dataset:

Data Collection Method by dataset:

• Hybrid: Human, Synthetic
  

Labeling Method by dataset:

• Automated
  

Properties: This model is trained on open-sourced datasets and synthetic datasets of text parallel corpora generated via back-translation and monolingual datasets. Each entry in the parallel corpus consists of a text in the source language and its translation in the target language. The monolingual datasets contain texts from each of the 12 target language domains. See bias subcard for language distribution.

Evaluation Dataset:

Link: We used Flores101 [1], NTREX-128 [2], FRMT [3https://www.statmt.org/wmt19/translation-task.html], WMT 19 [4], WMT20 [5] to evaluate the model.

Data Collection Method by dataset:

• Automated
  

Labeling Method by dataset:

• Automated
  

References:

For more information about these datasets, please see the links below.
[1] https://aclanthology.org/2022.tacl-1.30.pdf
[2] https://aclanthology.org/2022.sumeval-1.4.pdf
[3] https://aclanthology.org/2023.tacl-1.39.pdf
[4] https://www.statmt.org/wmt19/translation-task.html
[5] https://www.statmt.org/wmt20/translation-task.html

Inference:

Acceleration Engine: TensorRT-LLM

Test Hardware:

• A100
  
• A10G
  
• H100
  
• L40S
  

Ethical Considerations:

NVIDIA believes Trustworthy AI is a shared responsibility and we have established policies and practices to enable development for a wide array of AI applications. When downloaded or used in accordance with our terms of service, developers should work with their internal model team to ensure this model meets requirements for the relevant industry and use case and addresses unforeseen product misuse.

For more detailed information on ethical considerations for this model, please see the Model Card++ Explainability, Bias, Safety & Security, and Privacy Subcards.

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