PNNX

PNNX (PyTorch to NCNN eXporter) is a Python command-line tool designed for PyTorch model interoperability, primarily converting PyTorch models into the NCNN deep learning inference framework format, or ONNX. It is maintained by Tencent and is part of the larger NCNN project. The current PyPI version is 20260409, with frequent updates often tied to the NCNN project's release cycle.