FastSam-S: Optimized for Qualcomm Devices

The Fast Segment Anything Model (FastSAM) is a novel, real-time CNN-based solution for the Segment Anything task. This task is designed to segment any object within an image based on various possible user interaction prompts. The model performs competitively despite significantly reduced computation, making it a practical choice for a variety of vision tasks.

This is based on the implementation of FastSam-S 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.

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 2.45, ONNX Runtime 1.27.1	Download
ONNX	w8a16	Universal	QAIRT 2.45, ONNX Runtime 1.27.1	Download
QNN_DLC	float	Universal	QAIRT 2.45	Download
QNN_DLC	w8a16	Universal	QAIRT 2.45	Download
TFLITE	float	Universal	QAIRT 2.45	Download

For more device-specific assets and performance metrics, visit FastSam-S 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 FastSam-S on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.semantic_segmentation

Model Stats:

• Inference latency: RealTime
• Input resolution: 640x640
• Model checkpoint: fastsam-s.pt
• Model size (float): 45.1 MB
• Number of parameters: 11.8M

Performance Summary

Model	Runtime	Precision	Chipset	Inference Time (ms)	Peak Memory Range (MB)	Primary Compute Unit
FastSam-S	ONNX	float	Snapdragon® X2 Elite	4.61 ms	17 - 17 MB	NPU
FastSam-S	ONNX	float	Snapdragon® X Elite	8.388 ms	21 - 21 MB	NPU
FastSam-S	ONNX	float	Snapdragon® 8 Gen 3 Mobile	5.99 ms	18 - 249 MB	NPU
FastSam-S	ONNX	float	Snapdragon® 8 Gen 1 Mobile	16.658 ms	17 - 241 MB	NPU
FastSam-S	ONNX	float	Qualcomm® Dragonwing™ IQ-8275	13.198 ms	15 - 19 MB	NPU
FastSam-S	ONNX	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	8.228 ms	0 - 25 MB	NPU
FastSam-S	ONNX	float	Qualcomm® QCS8450	16.658 ms	17 - 241 MB	NPU
FastSam-S	ONNX	float	Qualcomm® Dragonwing™ IQ-9075	11.974 ms	15 - 18 MB	NPU
FastSam-S	ONNX	float	Qualcomm® Dragonwing™ IQ-X7181	8.388 ms	21 - 21 MB	NPU
FastSam-S	ONNX	float	Qualcomm® Dragonwing™ Q-8750	4.71 ms	12 - 215 MB	NPU
FastSam-S	ONNX	float	Snapdragon® 8 Elite Mobile	4.71 ms	12 - 215 MB	NPU
FastSam-S	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	3.643 ms	3 - 213 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® X2 Elite	3.131 ms	9 - 9 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® X Elite	7.011 ms	10 - 10 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® 8 Gen 3 Mobile	4.373 ms	8 - 264 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® 8 Gen 1 Mobile	11.698 ms	9 - 267 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ QCS6490	27.98 ms	8 - 10 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ IQ-8275	6.455 ms	8 - 11 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ QCS8550 (Proxy)	6.657 ms	0 - 14 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® QCS8450	11.698 ms	9 - 267 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ IQ-9075	7.039 ms	8 - 11 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ IQ-X7181	7.011 ms	10 - 10 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ Q-6690	70.828 ms	0 - 257 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ Q-7790	9.12 ms	8 - 229 MB	NPU
FastSam-S	ONNX	w8a16	Qualcomm® Dragonwing™ Q-8750	3.28 ms	1 - 217 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® 8 Elite Mobile	3.28 ms	1 - 217 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® 8 Elite Gen 5 Mobile	2.687 ms	1 - 223 MB	NPU
FastSam-S	ONNX	w8a16	Snapdragon® 7 Gen 4 Mobile	9.12 ms	8 - 229 MB	NPU
FastSam-S	QNN_DLC	float	Snapdragon® X2 Elite	4.588 ms	5 - 5 MB	NPU
FastSam-S	QNN_DLC	float	Snapdragon® X Elite	8.386 ms	5 - 5 MB	NPU
FastSam-S	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	5.861 ms	5 - 218 MB	NPU
FastSam-S	QNN_DLC	float	Snapdragon® 8 Gen 1 Mobile	15.955 ms	5 - 212 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-8275	12.88 ms	5 - 16 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-8275	39.191 ms	0 - 186 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	7.794 ms	5 - 14 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® SA8775P	11.597 ms	1 - 183 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® SA8650P	11.597 ms	1 - 183 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® SA8255P	11.597 ms	1 - 183 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® QCS8450	15.955 ms	5 - 212 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-9075	11.816 ms	5 - 15 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-X7181	8.386 ms	5 - 5 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® Dragonwing™ Q-8750	4.477 ms	5 - 195 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® SA7255P	39.191 ms	0 - 186 MB	NPU
FastSam-S	QNN_DLC	float	Qualcomm® SA8295P	13.769 ms	0 - 178 MB	NPU
FastSam-S	QNN_DLC	float	Snapdragon® 8 Elite Mobile	4.477 ms	5 - 195 MB	NPU
FastSam-S	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	3.253 ms	5 - 197 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® X2 Elite	2.859 ms	2 - 2 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® X Elite	5.97 ms	2 - 2 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® 8 Gen 3 Mobile	3.787 ms	2 - 236 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® 8 Gen 1 Mobile	8.28 ms	2 - 233 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ QCS6490	24.029 ms	1 - 7 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-8275	5.564 ms	2 - 9 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-8275	13.386 ms	0 - 193 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ QCS8550 (Proxy)	5.474 ms	2 - 4 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® SA8775P	5.996 ms	1 - 196 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® SA8650P	5.996 ms	1 - 196 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® SA8255P	5.996 ms	1 - 196 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® QCS8450	8.28 ms	2 - 233 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-9075	6.989 ms	2 - 8 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-X7181	5.97 ms	2 - 2 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ Q-6690	65.108 ms	2 - 203 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ Q-7790	7.608 ms	2 - 196 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® Dragonwing™ Q-8750	2.66 ms	0 - 198 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® SA7255P	13.386 ms	0 - 193 MB	NPU
FastSam-S	QNN_DLC	w8a16	Qualcomm® SA8295P	7.895 ms	0 - 191 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® 8 Elite Mobile	2.66 ms	0 - 198 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® 8 Elite Gen 5 Mobile	2.107 ms	2 - 204 MB	NPU
FastSam-S	QNN_DLC	w8a16	Snapdragon® 7 Gen 4 Mobile	7.608 ms	2 - 196 MB	NPU
FastSam-S	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	5.164 ms	4 - 118 MB	NPU
FastSam-S	TFLITE	float	Snapdragon® 8 Gen 1 Mobile	14.071 ms	6 - 235 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® Dragonwing™ IQ-8275	11.963 ms	4 - 40 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® Dragonwing™ IQ-8275	37.787 ms	4 - 86 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	6.973 ms	4 - 7 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® SA8775P	10.736 ms	4 - 90 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® SA8650P	10.736 ms	4 - 90 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® SA8255P	10.736 ms	4 - 90 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® QCS8450	14.071 ms	6 - 235 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® Dragonwing™ IQ-9075	10.46 ms	4 - 39 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® Dragonwing™ Q-8750	3.941 ms	3 - 101 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® SA7255P	37.787 ms	4 - 86 MB	NPU
FastSam-S	TFLITE	float	Qualcomm® SA8295P	13.077 ms	4 - 195 MB	NPU
FastSam-S	TFLITE	float	Snapdragon® 8 Elite Mobile	3.941 ms	3 - 101 MB	NPU
FastSam-S	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	3.12 ms	0 - 89 MB	NPU

License

• The license for the original implementation of FastSam-S can be found here.

References

• Fast Segment Anything
• Source Model Implementation

Community

• Join our AI Hub Slack community to collaborate, post questions and learn more about on-device AI.
• For questions or feedback please reach out to us.