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OpusMT-En-Es

Text Generation
PyTorch
foundation
android
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xet
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OpusMT-En-Es: Optimized for Qualcomm Devices

OpusMT English to Spanish translation model is a state-of-the-art neural machine translation system designed for translating English text into Spanish. This model is based on the Marian transformer architecture and has been optimized for edge inference by splitting into encoder and decoder components with modified attention mechanisms. It exhibits robust performance for real-world translation tasks, making it highly reliable for practical applications. The model supports input sequences up to 256 tokens and can generate Spanish translations with high accuracy.

This is based on the implementation of OpusMT-En-Es found here. This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the Qualcomm® AI Hub Models library to export with custom configurations. More details on model performance across various devices, can be found here.

Qualcomm AI Hub Models uses Qualcomm AI Hub Workbench to compile, profile, and evaluate this model. Sign up to run these models on a hosted Qualcomm® device.

Deploying OpusMT-En-Es on-device

This model is compatible with the Qualcomm Voice AI SDK. Download the SDK from the Qualcomm Package Manager to deploy this model on-device.

Getting Started

There are two ways to deploy this model on your device:

Option 1: Download Pre-Exported Models

Below are pre-exported model assets ready for deployment.

Runtime Precision Chipset SDK Versions Download
VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® X2 Elite QAIRT 2.50 Download
VOICE_AI float Snapdragon® X Elite QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Gen 3 Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Gen 1 Mobile QAIRT 2.50 Download
VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 QAIRT 2.50 Download
VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) QAIRT 2.50 Download
VOICE_AI float Qualcomm® SA8775P QAIRT 2.50 Download
VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.50 Download
VOICE_AI float Qualcomm® SA7255P QAIRT 2.50 Download
VOICE_AI float Qualcomm® SA8295P QAIRT 2.50 Download

For more device-specific assets and performance metrics, visit OpusMT-En-Es on Qualcomm® AI Hub.

Option 2: Export with Custom Configurations

Use the Qualcomm® AI Hub Models Python library to compile and export the model with your own:

  • Custom weights (e.g., fine-tuned checkpoints)
  • Custom input shapes
  • Target device and runtime configurations

This option is ideal if you need to customize the model beyond the default configuration provided here.

See our repository for OpusMT-En-Es on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.text_generation

Model Stats:

  • Attention heads: 8
  • Hidden dimension: 512
  • Input resolution: 256 tokens (English text)
  • Max input sequence length: 256 tokens
  • Max output sequence length: 256 tokens
  • Model checkpoint: Helsinki-NLP/opus-mt-en-es
  • Model size (decoder) (float): 340 MB
  • Model size (encoder) (float): 212 MB
  • Model size (decoder) (w8a16): 90.8 MB
  • Model size (encoder) (w8a16): 55.2 MB
  • Number of decoder layers: 6
  • Number of encoder layers: 6
  • Number of parameters (decoder): 55.7M
  • Number of parameters (encoder): 55.5M

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.379 ms 1 - 8 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 2.432 ms 0 - 12 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 2.494 ms 12 - 12 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.103 ms 12 - 12 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.866 ms 0 - 8 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.029 ms 3 - 12 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 4.49 ms 12 - 27 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.473 ms 12 - 13 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 4.225 ms 12 - 22 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 4.225 ms 12 - 22 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 4.029 ms 3 - 12 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 4.043 ms 12 - 26 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 3.103 ms 12 - 12 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 2.432 ms 0 - 12 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 4.297 ms 10 - 15 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 1.727 ms 0 - 9 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 2.23 ms 0 - 12 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 2.048 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 3.969 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.593 ms 0 - 7 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.906 ms 0 - 15 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 4.738 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.609 ms 0 - 2 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 4.781 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 4.781 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 4.906 ms 0 - 15 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 4.521 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 3.969 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 2.23 ms 0 - 12 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 5.131 ms 0 - 5 MB NPU

License

  • The license for the original implementation of OpusMT-En-Es can be found here.

References

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