---
library_name: pytorch
license: other
tags:
- backbone
- bu_auto
- android
pipeline_tag: image-classification

---

![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/web-assets/model_demo.png)

# ResNet101: Optimized for Qualcomm Devices

ResNet101 is a machine learning model that can classify images from the Imagenet dataset. It can also be used as a backbone in building more complex models for specific use cases.

This is based on the implementation of ResNet101 found [here](https://github.com/pytorch/vision/blob/main/torchvision/models/resnet.py).
This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/resnet101) library to export with custom configurations. More details on model performance across various devices, can be found [here](#performance-summary).

Qualcomm AI Hub Models uses [Qualcomm AI Hub Workbench](https://workbench.aihub.qualcomm.com) to compile, profile, and evaluate this model. [Sign up](https://myaccount.qualcomm.com/signup) to run these models on a hosted Qualcomm® 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 |
|---|---|---|---|---|
| ONNX | float | Universal | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/releases/v0.51.0/resnet101-onnx-float.zip)
| ONNX | w8a8 | Universal | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/releases/v0.51.0/resnet101-onnx-w8a8.zip)
| QNN_DLC | float | Universal | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/releases/v0.51.0/resnet101-qnn_dlc-float.zip)
| QNN_DLC | w8a8 | Universal | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/releases/v0.51.0/resnet101-qnn_dlc-w8a8.zip)
| TFLITE | float | Universal | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/releases/v0.51.0/resnet101-tflite-float.zip)
| TFLITE | w8a8 | Universal | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet101/releases/v0.51.0/resnet101-tflite-w8a8.zip)

For more device-specific assets and performance metrics, visit **[ResNet101 on Qualcomm® AI Hub](https://aihub.qualcomm.com/models/resnet101)**.


### Option 2: Export with Custom Configurations

Use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/resnet101) 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 [ResNet101 on GitHub](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/resnet101) for usage instructions.

## Model Details

**Model Type:** Model_use_case.image_classification

**Model Stats:**
- Model checkpoint: Imagenet
- Input resolution: 224x224
- Number of parameters: 44.5M
- Model size (float): 170 MB
- Model size (w8a8): 43.9 MB

## Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit
|---|---|---|---|---|---|---
| ResNet101 | ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.604 ms | 1 - 77 MB | NPU
| ResNet101 | ONNX | float | Snapdragon® X2 Elite | 1.627 ms | 86 - 86 MB | NPU
| ResNet101 | ONNX | float | Snapdragon® X Elite | 3.299 ms | 85 - 85 MB | NPU
| ResNet101 | ONNX | float | Snapdragon® 8 Gen 3 Mobile | 2.24 ms | 0 - 132 MB | NPU
| ResNet101 | ONNX | float | Qualcomm® QCS8550 (Proxy) | 3.079 ms | 0 - 103 MB | NPU
| ResNet101 | ONNX | float | Qualcomm® QCS9075 | 5.143 ms | 0 - 4 MB | NPU
| ResNet101 | ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.872 ms | 0 - 77 MB | NPU
| ResNet101 | ONNX | w8a8 | Snapdragon® 8 Elite Gen 5 Mobile | 0.801 ms | 0 - 76 MB | NPU
| ResNet101 | ONNX | w8a8 | Snapdragon® X2 Elite | 0.556 ms | 43 - 43 MB | NPU
| ResNet101 | ONNX | w8a8 | Snapdragon® X Elite | 1.295 ms | 43 - 43 MB | NPU
| ResNet101 | ONNX | w8a8 | Snapdragon® 8 Gen 3 Mobile | 0.977 ms | 0 - 138 MB | NPU
| ResNet101 | ONNX | w8a8 | Qualcomm® QCS6490 | 57.87 ms | 10 - 57 MB | CPU
| ResNet101 | ONNX | w8a8 | Qualcomm® QCS8550 (Proxy) | 1.281 ms | 0 - 54 MB | NPU
| ResNet101 | ONNX | w8a8 | Qualcomm® QCS9075 | 1.336 ms | 0 - 3 MB | NPU
| ResNet101 | ONNX | w8a8 | Qualcomm® QCM6690 | 41.95 ms | 1 - 12 MB | CPU
| ResNet101 | ONNX | w8a8 | Snapdragon® 8 Elite For Galaxy Mobile | 0.84 ms | 0 - 80 MB | NPU
| ResNet101 | ONNX | w8a8 | Snapdragon® 7 Gen 4 Mobile | 39.439 ms | 13 - 24 MB | CPU
| ResNet101 | QNN_DLC | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.633 ms | 0 - 67 MB | NPU
| ResNet101 | QNN_DLC | float | Snapdragon® X2 Elite | 1.958 ms | 1 - 1 MB | NPU
| ResNet101 | QNN_DLC | float | Snapdragon® X Elite | 3.539 ms | 1 - 1 MB | NPU
| ResNet101 | QNN_DLC | float | Snapdragon® 8 Gen 3 Mobile | 2.426 ms | 0 - 121 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® QCS8275 (Proxy) | 18.342 ms | 1 - 65 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® QCS8550 (Proxy) | 3.399 ms | 1 - 239 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® SA8775P | 5.454 ms | 1 - 67 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® QCS9075 | 5.278 ms | 3 - 5 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® QCS8450 (Proxy) | 5.948 ms | 0 - 90 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® SA7255P | 18.342 ms | 1 - 65 MB | NPU
| ResNet101 | QNN_DLC | float | Qualcomm® SA8295P | 5.61 ms | 1 - 39 MB | NPU
| ResNet101 | QNN_DLC | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.952 ms | 0 - 65 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Snapdragon® 8 Elite Gen 5 Mobile | 0.729 ms | 0 - 76 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Snapdragon® X2 Elite | 0.647 ms | 0 - 0 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Snapdragon® X Elite | 1.278 ms | 0 - 0 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Snapdragon® 8 Gen 3 Mobile | 0.974 ms | 0 - 122 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® QCS6490 | 4.471 ms | 0 - 2 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® QCS8275 (Proxy) | 3.02 ms | 0 - 72 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® QCS8550 (Proxy) | 1.286 ms | 0 - 2 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® SA8775P | 1.525 ms | 0 - 75 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® QCS9075 | 1.322 ms | 0 - 2 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® QCM6690 | 11.71 ms | 0 - 195 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® QCS8450 (Proxy) | 1.781 ms | 0 - 124 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® SA7255P | 3.02 ms | 0 - 72 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Qualcomm® SA8295P | 1.945 ms | 0 - 71 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Snapdragon® 8 Elite For Galaxy Mobile | 0.81 ms | 0 - 74 MB | NPU
| ResNet101 | QNN_DLC | w8a8 | Snapdragon® 7 Gen 4 Mobile | 1.795 ms | 0 - 83 MB | NPU
| ResNet101 | TFLITE | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.62 ms | 0 - 112 MB | NPU
| ResNet101 | TFLITE | float | Snapdragon® 8 Gen 3 Mobile | 2.389 ms | 0 - 178 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® QCS8275 (Proxy) | 18.248 ms | 0 - 108 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® QCS8550 (Proxy) | 3.305 ms | 0 - 3 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® SA8775P | 5.428 ms | 0 - 112 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® QCS9075 | 5.278 ms | 0 - 88 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® QCS8450 (Proxy) | 5.926 ms | 0 - 145 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® SA7255P | 18.248 ms | 0 - 108 MB | NPU
| ResNet101 | TFLITE | float | Qualcomm® SA8295P | 5.57 ms | 0 - 82 MB | NPU
| ResNet101 | TFLITE | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.926 ms | 0 - 112 MB | NPU
| ResNet101 | TFLITE | w8a8 | Snapdragon® 8 Elite Gen 5 Mobile | 0.701 ms | 0 - 74 MB | NPU
| ResNet101 | TFLITE | w8a8 | Snapdragon® 8 Gen 3 Mobile | 0.865 ms | 0 - 134 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® QCS6490 | 4.316 ms | 0 - 45 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® QCS8275 (Proxy) | 2.746 ms | 0 - 71 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® QCS8550 (Proxy) | 1.14 ms | 0 - 2 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® SA8775P | 1.41 ms | 0 - 74 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® QCS9075 | 1.17 ms | 0 - 45 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® QCM6690 | 11.227 ms | 0 - 191 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® QCS8450 (Proxy) | 1.64 ms | 0 - 134 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® SA7255P | 2.746 ms | 0 - 71 MB | NPU
| ResNet101 | TFLITE | w8a8 | Qualcomm® SA8295P | 1.801 ms | 0 - 68 MB | NPU
| ResNet101 | TFLITE | w8a8 | Snapdragon® 8 Elite For Galaxy Mobile | 0.742 ms | 0 - 70 MB | NPU
| ResNet101 | TFLITE | w8a8 | Snapdragon® 7 Gen 4 Mobile | 1.668 ms | 0 - 78 MB | NPU

## License
* The license for the original implementation of ResNet101 can be found
  [here](https://github.com/pytorch/vision/blob/main/LICENSE).

## References
* [Deep Residual Learning for Image Recognition](https://arxiv.org/abs/1512.03385)
* [Source Model Implementation](https://github.com/pytorch/vision/blob/main/torchvision/models/resnet.py)

## Community
* Join [our AI Hub Slack community](https://aihub.qualcomm.com/community/slack) to collaborate, post questions and learn more about on-device AI.
* For questions or feedback please [reach out to us](mailto:ai-hub-support@qti.qualcomm.com).