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rknn-toolkit2

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Description RKNN software stack can help users to quickly deploy AI models to Rockchip chips. The overall framework is as follows: <center …

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Description RKNN software stack can help users to quickly deploy AI models to Rockchip chips. The overall framework is as follows: <center …

Description

RKNN software stack can help users to quickly deploy AI models to Rockchip chips. The overall framework is as follows:

</center>

In order to use RKNPU, users need to first run the RKNN-Toolkit2 tool on the computer, convert the trained model into an RKNN format model, and then inference on the development board using the RKNN C API or Python API.

  • RKNN-Toolkit2 is a software development kit for users to perform model conversion, inference and performance evaluation on PC and Rockchip NPU platforms.

  • RKNN-Toolkit-Lite2 provides Python programming interfaces for Rockchip NPU platform to help users deploy RKNN models and accelerate the implementation of AI applications.

  • RKNN Runtime provides C/C++ programming interfaces for Rockchip NPU platform to help users deploy RKNN models and accelerate the implementation of AI applications.

  • RKNPU kernel driver is responsible for interacting with NPU hardware. It has been open source and can be found in the Rockchip kernel code.

Support Platform

  • RK3588 Series
  • RK3576 Series
  • RK3566/RK3568 Series
  • RK3562 Series
  • RV1103/RV1106
  • RV1103B/RV1106B
  • RV1126B
  • RK2118

Note:

​ For RK1808/RV1109/RV1126/RK3399Pro, please refer to :

​ https://github.com/airockchip/rknn-toolkit

​ https://github.com/airockchip/rknpu

​ https://github.com/airockchip/RK3399Pro_npu

Download

  • You can also download all packages, docker image, examples, docs and platform-tools from RKNPU2_SDK, fetch code: rknn
  • You can get more examples from rknn mode zoo

Notes

  • RKNN-Toolkit2 is not compatible with RKNN-Toolkit
  • The supported Python versions are:
    • Python 3.6
    • Python 3.7
    • Python 3.8
    • Python 3.9
    • Python 3.10
    • Python 3.11
    • Python 3.12
  • Latest version:v2.3.2

RKNN LLM

If you want to deploy LLM (Large Language Model), we have introduced a new SDK called RKNN-LLM. For details, please refer to:

https://github.com/airockchip/rknn-llm

CHANGELOG

v2.3.2

  • Support for RV1126B platform
  • Improved einsum and Norm operations support
  • Added automatic mixed precision functionality
  • Enhanced graph optimization capabilities

for older version, please refer CHANGELOG

Feedback and Community Support

  • Redmine (Feedback recommended, Please consult our sales or FAE for the redmine account)
  • QQ Group Chat: 1025468710 (full, please join group 4)
  • QQ Group Chat2: 547021958 (full, please join group 4)
  • QQ Group Chat3: 469385426 (full, please join group 4)
  • QQ Group Chat4: 958083853

GitHub Issues· 467 open

View all on GitHub
  • #577

    C API async mode (rknn_wait) does not seem to work

    Updated Sep 16, 2026
  • #136

    Convert ASR encoder from onnx to rknn got 3 different errors The shape of '/Unsqueeze_output_0' is (1, 0), it is abnormal! The input 1 of Range('/Range') need to be constant! The input tensor cannot be reshaped

    Updated Sep 14, 2026
  • #576

    fold_constant crashes on SkipLayerNormalization/BiasGelu with empty optional-output names

    Updated Sep 14, 2026
  • #575

    load_onnx crashes on Clip op with mismatched int32/int64 types (2.3.2)

    Updated Sep 14, 2026
  • #573

    rknn model accuracy severe drop

    Updated Sep 10, 2026
  • #572

    librknnrt.so depends on libfmt.so.9.1.0 - on ubuntu 26.04 libfmt 10 is used

    Updated Sep 7, 2026
  • #374

    rv1103 onnx转rknn报cvt_int8_to_float16错误

    Updated Sep 3, 2026
  • #525

    Yolo11-obb多batch后处理问题

    Updated Aug 31, 2026
  • #222

    导出dynamic batch size rknn模型报错

    Updated Aug 26, 2026
  • #487

    是否可以提供适配openhamony的librknnrt.so

    Updated Aug 26, 2026

Highlights

  • •RKNN-Toolkit2 is a software development kit for users to perform model conversion, inference and performance evaluation on PC and Rockchip NPU platforms.
  • •RKNN-Toolkit-Lite2 provides Python programming interfaces for Rockchip NPU platform to help users deploy RKNN models and accelerate the implementation of AI applications.
  • •RKNN Runtime provides C/C++ programming interfaces for Rockchip NPU platform to help users deploy RKNN models and accelerate the implementation of AI applications.
  • •RKNPU kernel driver is responsible for interacting with NPU hardware. It has been open source and can be found in the Rockchip kernel code.
  • •RK3588 Series
  • •RK3576 Series
  • •RK3566/RK3568 Series
  • •RK3562 Series
  • •RV1103/RV1106
  • •RV1103B/RV1106B

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> Details

PublishedAug 1, 2026
UpdatedSep 17, 2026
Category编程语言
PricingOpen source

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