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Qwen3-4B

Text Generation
PyTorch
llm
generative_ai
android
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Qwen3-4B: Optimized for Qualcomm Devices

The Qwen3-4B is a state-of-the-art multilingual base language model with 4 billion parameters, excelling in language understanding, generation, coding, and mathematics.

This is based on the implementation of Qwen3-4B 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 Qwen3-4B on-device

Follow the GenieX quickstart to install GenieX and deploy the model on a target device.

See the LLM-on-Genie tutorial to run with the Genie runtime. Note: Genie support will be deprecated soon.

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
GENIEX_QAIRT w4a16 Snapdragon® 8 Elite Gen 5 Mobile QAIRT 2.45 Download
GENIEX_QAIRT w4a16 Snapdragon® 8 Elite Mobile QAIRT 2.45 Download
GENIEX_QAIRT w4a16 Snapdragon® X2 Elite QAIRT 2.45 Download
GENIEX_QAIRT w4a16 Snapdragon® X Elite QAIRT 2.45 Download
GENIEX_QAIRT w4a16 Qualcomm® SA8775P QAIRT 2.45 Download
GENIEX_QAIRT w4a16 Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.45 Download

For more device-specific assets and performance metrics, visit Qwen3-4B 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 Qwen3-4B on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.text_generation

Model Stats:

  • Supported languages: 100+ languages and dialects.
  • TTFT: Time To First Token is the time it takes to generate the first response token. This is expressed as a range because it varies based on the length of the prompt. The lower bound is for a short prompt (up to 128 tokens, i.e., one iteration of the prompt processor) and the upper bound is for a prompt using the full context length (4096 tokens).
  • Response Rate: Rate of response generation after the first response token. Measured on a short prompt with a long response (with thinking); may slow down when using longer context lengths.

Performance Summary

Model Runtime Precision Chipset Context Length Response Rate (tokens per second) Time To First Token (range, seconds)
Qwen3-4B GENIE w4a16 Snapdragon® 8 Elite Gen 5 Mobile 4096 29.241936683654785 0.051795499999999994 - 1.6574559999999998
Qwen3-4B GENIE w4a16 Snapdragon® 8 Elite Mobile 4096 24.391611099243164 0.06899839999999999 - 2.2079487999999996
Qwen3-4B GENIE w4a16 Snapdragon® X2 Elite 4096 30.268534088134764 0.06770319999999999 - 2.1665023999999997
Qwen3-4B GENIE w4a16 Snapdragon® X Elite 4096 17.502406787872314 0.1127745 - 3.608784
Qwen3-4B GENIE w4a16 Qualcomm® Dragonwing™ IQ-9075 4096 17.71731367111206 0.10616810000000002 - 3.3973792000000005
Qwen3-4B GENIE w4a16 Qualcomm® Dragonwing™ IQ-X7181 4096 17.502406787872314 0.1127745 - 3.608784
Qwen3-4B GENIE w4a16 Qualcomm® Dragonwing™ Q-8750 4096 24.391611099243164 0.06899839999999999 - 2.2079487999999996
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 512 22.345148 1.163462 - 4.653848
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 512 21.837581 1.20320125 - 4.812805
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 512 18.065555 0.24040424999999999 - 0.957415
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 1024 19.048557 12.245683999999999 - 12.245683999999999
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 1024 19.016666 12.59975 - 12.59975
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 1024 16.243636 2.318602 - 2.318602
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 4096 7.579774 3.2244959375 - 103.18387
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 4096 8.135403 3.39820121875 - 108.742439
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® 8 Elite Mobile 4096 12.112907 0.48037071875 - 0.760079
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X2 Elite 512 33.741473 0.27790575 - 1.111623
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X2 Elite 512 33.490468 0.27597075 - 1.103883
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X2 Elite 512 20.973144 0.16287725 - 0.651509
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X2 Elite 4096 20.323515 0.5701374375 - 18.244398
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X2 Elite 4096 20.262276 0.57165421875 - 18.292935
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X2 Elite 4096 14.386503 0.2386385625 - 7.636434
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X Elite 512 22.888754 0.74547975 - 2.981919
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X Elite 512 22.661212 0.62115075 - 2.484603
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X Elite 512 12.489915 0.37069175 - 1.482767
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X Elite 4096 10.628056 1.4426614687500001 - 46.165167000000004
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X Elite 4096 5.741986 1.5289054375 - 48.924974
Qwen3-4B GENIEX_LLAMACPP q4_0 Snapdragon® X Elite 4096 7.732127 0.57647490625 - 18.447197
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ IQ-X7181 512 22.888754 0.74547975 - 2.981919
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ IQ-X7181 512 22.661212 0.62115075 - 2.484603
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ IQ-X7181 512 12.489915 0.37069175 - 1.482767
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 512 22.345148 1.163462 - 4.653848
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 512 21.837581 1.20320125 - 4.812805
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 512 18.065555 0.24040424999999999 - 0.957415
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 1024 19.048557 12.245683999999999 - 12.245683999999999
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 1024 19.016666 12.59975 - 12.59975
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 1024 16.243636 2.318602 - 2.318602
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ IQ-X7181 4096 10.628056 1.4426614687500001 - 46.165167000000004
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ IQ-X7181 4096 5.741986 1.5289054375 - 48.924974
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ IQ-X7181 4096 7.732127 0.57647490625 - 18.447197
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 4096 7.579774 3.2244959375 - 103.18387
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 4096 8.135403 3.39820121875 - 108.742439
Qwen3-4B GENIEX_LLAMACPP q4_0 Qualcomm® Dragonwing™ Q-8750 4096 12.112907 0.48037071875 - 0.760079
Qwen3-4B GENIEX_QAIRT w4a16 Snapdragon® 8 Elite Gen 5 Mobile 4096 28.817581 0.0485 - 1.552
Qwen3-4B GENIEX_QAIRT w4a16 Snapdragon® 8 Elite Mobile 4096 24.895134 0.06559999999999999 - 2.0991999999999997
Qwen3-4B GENIEX_QAIRT w4a16 Snapdragon® X2 Elite 4096 39.129635 0.046299999999999994 - 1.4815999999999998
Qwen3-4B GENIEX_QAIRT w4a16 Snapdragon® X Elite 4096 21.768533 0.09770000000000001 - 3.1264000000000003
Qwen3-4B GENIEX_QAIRT w4a16 Qualcomm® Dragonwing™ IQ-9075 4096 12.891172 0.15080000000000002 - 4.8256000000000006
Qwen3-4B GENIEX_QAIRT w4a16 Qualcomm® Dragonwing™ IQ-X7181 4096 21.768533 0.09770000000000001 - 3.1264000000000003
Qwen3-4B GENIEX_QAIRT w4a16 Qualcomm® Dragonwing™ Q-8750 4096 24.895134 0.06559999999999999 - 2.0991999999999997

License

  • The license for the original implementation of Qwen3-4B can be found here.

References

Community

Usage and Limitations

This model may not be used for or in connection with any of the following applications:

  • Accessing essential private and public services and benefits;
  • Administration of justice and democratic processes;
  • Assessing or recognizing the emotional state of a person;
  • Biometric and biometrics-based systems, including categorization of persons based on sensitive characteristics;
  • Education and vocational training;
  • Employment and workers management;
  • Exploitation of the vulnerabilities of persons resulting in harmful behavior;
  • General purpose social scoring;
  • Law enforcement;
  • Management and operation of critical infrastructure;
  • Migration, asylum and border control management;
  • Predictive policing;
  • Real-time remote biometric identification in public spaces;
  • Recommender systems of social media platforms;
  • Scraping of facial images (from the internet or otherwise); and/or
  • Subliminal manipulation
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Paper for qualcomm/Qwen3-4B