---
title: Zipformer
canonical_url: "https://www.modelscope.cn/models/Qualcomm-AI-Hub/Zipformer"
md_url: "https://www.modelscope.cn/models/Qualcomm-AI-Hub/Zipformer.md"
repository: Qualcomm-AI-Hub/Zipformer
last_updated: 2026-10-16
license: apache-2.0
downloads: 0
stars: 0
tags:
  - foundation
  - android
---

# Zipformer

> Zipformer - Qualcomm-AI-Hub 在 ModelScope 开源的模型。Zipformer: Optimized for Qualcomm Devices

Qualcomm-AI-Hub/Zipformer 是 ModelScope 魔搭社区上的机器学习模型，采用 apache-2.0 许可。

- **Repository**: Qualcomm-AI-Hub/Zipformer
- **License**: apache-2.0
- **Tags**: foundation, android
- **Downloads**: 0
- **Stars**: 0
- **Last updated**: 2026-10-16

Source: https://www.modelscope.cn/models/Qualcomm-AI-Hub/Zipformer

---

![](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/web-assets/model_demo.png)

# Zipformer: Optimized for Qualcomm Devices

Zipformer streaming ASR (Automatic Speech Recognition) model is a state-of-the-art system designed for transcribing spoken language into written text streamingly. This model is based on the transformer architecture and has been optimized for edge inference by replacing linear layers with convolutional (conv) layers. It exhibits robust performance in realistic, noisy environments, making it highly reliable for real-world applications. Specifically, it excels in long-form transcription, capable of accurately transcribing audios. Time to the first token is the encoder's latency, while time to each additional token is joiner's latency, where we assume a max decoded length specified below.

This is based on the implementation of Zipformer found [here](https://github.com/k2-fsa/icefall).
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-cn/blob/main/src/qai_hub_models/models/zipformer) 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.cn) 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 |
|---|---|---|---|---|
| PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_x2_elite.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_x_elite.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8gen3.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 1 Mobile | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8gen1.zip)
| PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-8275 | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_qcs8275.zip)
| PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_qcs8550_proxy.zip)
| PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-9075 | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_qcs9075.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Mobile | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8_elite_for_galaxy.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.45, ONNX Runtime 1.27.1 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8_elite_gen5_for_galaxy.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_snapdragon_x2_elite.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_snapdragon_x_elite.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8gen3.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 1 Mobile | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8gen1.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-8275 | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_qcs8275.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_qcs8550_proxy.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_sa8775p.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-9075 | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_qcs9075.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_sa7255p.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_sa8295p.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Mobile | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8_elite_for_galaxy.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.45 | [Download](https://china-qaihub-public-assets.s3.cn-northwest-1.amazonaws.com.cn/qai-hub-models/models/zipformer/releases/v0.62.1/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8_elite_gen5_for_galaxy.zip)

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


### Option 2: Export with Custom Configurations

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

## Model Details

**Model Type:** Model_use_case.speech_recognition

**Model Stats:**
- Input resolution: 80x71 (0.71 seconds audio)
- Max decoded sequence length: 200 tokens
- Model checkpoint: pfluo/k2fsa-zipformer-chinese-english-mixed
- Model size (decoder) (float): 13.2 MB
- Model size (encoder) (float): 242 MB
- Model size (joiner) (float): 12.2 MB
- Number of parameters (decoder): 3.47M
- Number of parameters (encoder): 63.2M
- Number of parameters (joiner): 3.21M

## Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit
|---|---|---|---|---|---|---
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | 0.092 ms | 1 - 1 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | 0.142 ms | 7 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | 0.158 ms | 0 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 1 Mobile | 0.25 ms | 0 - 14 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-8275 | 0.357 ms | 0 - 4 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 0.191 ms | 0 - 8 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8450 | 0.25 ms | 0 - 14 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-9075 | 0.274 ms | 0 - 3 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-X7181 | 0.142 ms | 7 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ Q-8750 | 0.139 ms | 0 - 10 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Mobile | 0.139 ms | 0 - 10 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.137 ms | 0 - 7 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | 0.176 ms | 0 - 0 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | 0.241 ms | 0 - 0 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | 0.15 ms | 15 - 22 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 1 Mobile | 0.24 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-8275 | 0.334 ms | 0 - 2 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 0.197 ms | 0 - 1 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | 0.324 ms | 0 - 10 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8650P | 0.324 ms | 0 - 10 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8255P | 0.324 ms | 0 - 10 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 | 0.24 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-9075 | 0.24 ms | 0 - 2 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-X7181 | 0.241 ms | 0 - 0 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ Q-8750 | 0.133 ms | 0 - 12 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | 0.432 ms | 0 - 8 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | 0.456 ms | 0 - 5 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Mobile | 0.133 ms | 0 - 12 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.131 ms | 0 - 8 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | 7.921 ms | 10 - 10 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | 13.362 ms | 142 - 142 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | 8.885 ms | 9 - 21 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 1 Mobile | 16.148 ms | 9 - 23 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-8275 | 13.723 ms | 8 - 13 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 12.508 ms | 0 - 159 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8450 | 16.148 ms | 9 - 23 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-9075 | 14.85 ms | 8 - 12 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-X7181 | 13.362 ms | 142 - 142 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ Q-8750 | 7.533 ms | 9 - 22 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Mobile | 7.533 ms | 9 - 22 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 6.975 ms | 10 - 16 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | 8.417 ms | 3 - 3 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | 13.06 ms | 3 - 3 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | 8.737 ms | 2 - 12 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 1 Mobile | 16.003 ms | 2 - 13 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-8275 | 13.446 ms | 3 - 8 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 12.442 ms | 3 - 4 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | 14.123 ms | 3 - 12 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8650P | 14.123 ms | 3 - 12 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8255P | 14.123 ms | 3 - 12 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 | 16.003 ms | 2 - 13 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-9075 | 14.075 ms | 3 - 7 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-X7181 | 13.06 ms | 3 - 3 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ Q-8750 | 7.486 ms | 3 - 15 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | 28.792 ms | 3 - 11 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | 17.343 ms | 0 - 5 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Mobile | 7.486 ms | 3 - 15 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | 6.928 ms | 3 - 11 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | 0.08 ms | 1 - 1 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | 0.144 ms | 6 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | 0.155 ms | 0 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 1 Mobile | 0.238 ms | 0 - 14 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-8275 | 0.269 ms | 0 - 3 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 0.188 ms | 0 - 8 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8450 | 0.238 ms | 0 - 14 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-9075 | 0.27 ms | 0 - 3 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ IQ-X7181 | 0.144 ms | 6 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® Dragonwing™ Q-8750 | 0.134 ms | 0 - 7 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Mobile | 0.134 ms | 0 - 7 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.135 ms | 0 - 7 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | 0.204 ms | 0 - 0 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | 0.238 ms | 1 - 1 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | 0.149 ms | 0 - 7 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 1 Mobile | 0.229 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-8275 | 0.242 ms | 0 - 2 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 0.187 ms | 0 - 1 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | 0.327 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA8650P | 0.327 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA8255P | 0.327 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 | 0.229 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-9075 | 0.234 ms | 2 - 4 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ IQ-X7181 | 0.238 ms | 1 - 1 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® Dragonwing™ Q-8750 | 0.134 ms | 0 - 13 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | 0.475 ms | 0 - 8 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | 0.461 ms | 0 - 5 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Mobile | 0.134 ms | 0 - 13 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.134 ms | 0 - 8 MB | NPU

## License
* The license for the original implementation of Zipformer can be found
  [here](https://github.com/huggingface/transformers/blob/v4.42.3/LICENSE).

## References
* [Zipformer A faster and better encoder for automatic speech recognition](https://arxiv.org/abs/2310.11230)
* [Source Model Implementation](https://github.com/k2-fsa/icefall)

## Community
* For questions or feedback, chat with our engineers in [Qualcomm® AI Hub Workbench](https://workbench.aihub.qualcomm.cn).