# Qualcomm AI Engine Direct SDK Source: [https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn.html](https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn.html) Qualcomm AI Engine Direct SDK (also known as QNN SDK) offers low-level APIs to achieve the best performance for AI workloads on Qualcomm platforms. QNN SDK supports models from frameworks, such as PyTorch, TensorFlow, and Onnx. QNN SDK provides offline tools to convert, quantize, optimize, and deploy models on Qualcomm hardware with acceleration. Page-1 Sheet.1 Qualcomm AI Engine Direct backend libraries Qualcomm AI Engine Direct backend libraries Sheet.3 Sheet.4 Sheet.5 Qualcomm® AI Engine Direct API Qualcomm® AI Engine Direct API Sheet.6 Kernels Kernels Sheet.7 OpenCL OpenCL Sheet.8 Sheet.9 Sheet.10 Qualcomm® AI Engine Direct API Qualcomm® AI Engine Direct API Sheet.11 QML QML Sheet.12 Neon Neon Sheet.13 Sheet.14 Sheet.15 Qualcomm® AI Engine Direct API Qualcomm® AI Engine Direct API Sheet.16 HTP core HTP core Sheet.17 HMX/HVX HMX/HVX Sheet.18 Hardware IP cores Hardware IP cores Sheet.19 NPU (DSP/HMX/HTP) NPU (DSP/HMX/HTP) Sheet.20 GPU GPU Sheet.21 CPU CPU Sheet.27 TensorFlow TensorFlow Sheet.28 TFLite TFLite Sheet.29 ONNX ONNX Sheet.30 PyTorch PyTorch Sheet.31 .pb .pb Sheet.32 .tflite .tflite Sheet.33 .onnx .onnx Sheet.34 .ts .ts Sheet.35 Sheet.36 Sheet.37 Sheet.38 Sheet.39 Sheet.40 Sheet.46 Sheet.47 Sheet.55 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Sheet.53 Sheet.54 Sheet.2 Sheet.57 Sheet.115 Sheet.103 Sheet.104 Sheet.105 Sheet.106 Sheet.107 Sheet.108 Sheet.109 Sheet.110 Sheet.111 Sheet.112 Sheet.113 Sheet.114 Sheet.116 Sheet.117 Training Training Sheet.41 QTI QTI Sheet.43 Hardware Hardware Sheet.45 OSS OSS Setup [Download QNN](https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn-download.html) [Setup QNN](https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn-setup.html) Customize [Convert/Quantize Model](https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn-port-model.html#concept_vjp_prt_pbc__section_l3t_prt_pbc_spyrz_06-03-24-1311-7-406) [Generate QNN Model](https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn-port-model.html#concept_vjp_prt_pbc__section_g5f_1tt_pbc_spyrz_06-03-24-1321-48-562) Run Inference [Execute Model](https://docs.qualcomm.com/doc/80-70015-15B/topic/qnn-run-model.html) API Reference [C/C++](https://docs.qualcomm.com/bundle/publicresource/topics/80-63442-50/api.html) Last Published: Jan 21, 2026 [Previous Topic Model deployment](https://docs.qualcomm.com/bundle/publicresource/80-70015-15B/topics/snpe-run-model.md) [Next Topic Install AI Engine Direct](https://docs.qualcomm.com/bundle/publicresource/80-70015-15B/topics/qnn-download.md)