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OpusMT-It-En

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

OpusMT Italian to English translation model is a state-of-the-art neural machine translation system designed for translating Italian text into English. 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 English translations with high accuracy.

This is based on the implementation of OpusMT-It-En 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-It-En 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 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
VOICE_AI float Snapdragon® 8 Elite Extreme Gen 6 Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Elite Gen 6 Mobile QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® 8 Elite Gen 5 For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® 8 Elite For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® X2 Elite QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® X Elite QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® 8 Gen 1 Mobile QAIRT 2.50 Download
VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-8275 QAIRT 2.50 Download
VOICE_AI w8a16 Qualcomm® Dragonwing™ QCS8550 (Proxy) QAIRT 2.50 Download
VOICE_AI w8a16 Qualcomm® SA8775P QAIRT 2.50 Download
VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.50 Download
VOICE_AI w8a16 Qualcomm® SA7255P QAIRT 2.50 Download
VOICE_AI w8a16 Qualcomm® SA8295P QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® 8 Elite Extreme Gen 6 Mobile QAIRT 2.50 Download
VOICE_AI w8a16 Snapdragon® 8 Elite Gen 6 Mobile QAIRT 2.50 Download

For more device-specific assets and performance metrics, visit OpusMT-It-En 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-It-En 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 (Italian text)
  • Max input sequence length: 256 tokens
  • Max output sequence length: 256 tokens
  • Model checkpoint: Helsinki-NLP/opus-mt-it-en
  • Model size (decoder) (float): 340 MB
  • Model size (decoder) (w8a16): 90.8 MB
  • Model size (encoder) (float): 212 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 1.466 ms 1 - 9 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 1.608 ms 0 - 12 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.426 ms 12 - 12 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 2.418 ms 12 - 12 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 3.074 ms 2 - 11 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 3.224 ms 12 - 27 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 2.516 ms 1 - 3 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.194 ms 12 - 21 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.194 ms 12 - 21 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.194 ms 12 - 21 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 3.074 ms 2 - 11 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 3.01 ms 14 - 29 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 2.418 ms 12 - 12 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 1.608 ms 0 - 12 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 4.225 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.309 ms 10 - 15 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Extreme Gen 6 Mobile 1.44 ms 1 - 11 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 6 Mobile 1.472 ms 1 - 10 MB NPU
decoder VOICE_AI w8a16 Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 1.072 ms 0 - 8 MB NPU
decoder VOICE_AI w8a16 Snapdragon® 8 Elite For Galaxy Mobile 1.121 ms 0 - 12 MB NPU
decoder VOICE_AI w8a16 Snapdragon® X2 Elite 0.985 ms 3 - 3 MB NPU
decoder VOICE_AI w8a16 Snapdragon® X Elite 1.602 ms 3 - 3 MB NPU
decoder VOICE_AI w8a16 Snapdragon® 8 Gen 1 Mobile 1.917 ms 3 - 12 MB NPU
decoder VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-8275 2.096 ms 2 - 6 MB NPU
decoder VOICE_AI w8a16 Qualcomm® Dragonwing™ QCS8550 (Proxy) 1.689 ms 0 - 2 MB NPU
decoder VOICE_AI w8a16 Qualcomm® SA8775P 2.122 ms 0 - 9 MB NPU
decoder VOICE_AI w8a16 Qualcomm® SA8650P 2.122 ms 0 - 9 MB NPU
decoder VOICE_AI w8a16 Qualcomm® SA8255P 2.122 ms 0 - 9 MB NPU
decoder VOICE_AI w8a16 Qualcomm® QCS8450 1.917 ms 3 - 12 MB NPU
decoder VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-9075 2.022 ms 2 - 5 MB NPU
decoder VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-X7181 1.602 ms 3 - 3 MB NPU
decoder VOICE_AI w8a16 Qualcomm® Dragonwing™ Q-8750 1.121 ms 0 - 12 MB NPU
decoder VOICE_AI w8a16 Qualcomm® SA7255P 3.033 ms 3 - 12 MB NPU
decoder VOICE_AI w8a16 Qualcomm® SA8295P 2.372 ms 3 - 8 MB NPU
decoder VOICE_AI w8a16 Snapdragon® 8 Elite Extreme Gen 6 Mobile 1.052 ms 0 - 10 MB NPU
decoder VOICE_AI w8a16 Snapdragon® 8 Elite Gen 6 Mobile 1.051 ms 0 - 10 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.606 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 2.974 ms 0 - 12 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 2.57 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 4.985 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 6.136 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 5.108 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 4.949 ms 0 - 2 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 5.253 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 5.253 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 5.253 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 6.136 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 5.065 ms 2 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 4.985 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 2.974 ms 0 - 12 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 8.376 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 6.366 ms 0 - 5 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Extreme Gen 6 Mobile 1.121 ms 0 - 9 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 6 Mobile 2.455 ms 0 - 10 MB NPU
encoder VOICE_AI w8a16 Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.376 ms 0 - 7 MB NPU
encoder VOICE_AI w8a16 Snapdragon® 8 Elite For Galaxy Mobile 2.806 ms 0 - 12 MB NPU
encoder VOICE_AI w8a16 Snapdragon® X2 Elite 2.343 ms 0 - 0 MB NPU
encoder VOICE_AI w8a16 Snapdragon® X Elite 4.596 ms 0 - 0 MB NPU
encoder VOICE_AI w8a16 Snapdragon® 8 Gen 1 Mobile 5.553 ms 0 - 10 MB NPU
encoder VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-8275 4.594 ms 0 - 4 MB NPU
encoder VOICE_AI w8a16 Qualcomm® Dragonwing™ QCS8550 (Proxy) 4.637 ms 0 - 2 MB NPU
encoder VOICE_AI w8a16 Qualcomm® SA8775P 4.762 ms 0 - 9 MB NPU
encoder VOICE_AI w8a16 Qualcomm® SA8650P 4.762 ms 0 - 9 MB NPU
encoder VOICE_AI w8a16 Qualcomm® SA8255P 4.762 ms 0 - 9 MB NPU
encoder VOICE_AI w8a16 Qualcomm® QCS8450 5.553 ms 0 - 10 MB NPU
encoder VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-9075 4.54 ms 0 - 4 MB NPU
encoder VOICE_AI w8a16 Qualcomm® Dragonwing™ IQ-X7181 4.596 ms 0 - 0 MB NPU
encoder VOICE_AI w8a16 Qualcomm® Dragonwing™ Q-8750 2.806 ms 0 - 12 MB NPU
encoder VOICE_AI w8a16 Qualcomm® SA7255P 7.822 ms 0 - 9 MB NPU
encoder VOICE_AI w8a16 Qualcomm® SA8295P 6.018 ms 0 - 5 MB NPU
encoder VOICE_AI w8a16 Snapdragon® 8 Elite Extreme Gen 6 Mobile 0.923 ms 0 - 9 MB NPU
encoder VOICE_AI w8a16 Snapdragon® 8 Elite Gen 6 Mobile 2.258 ms 0 - 10 MB NPU

License

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

References

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