Issue using PyBind11 to integrate LibTorch C++ models with Stable-Baselines3

[PandaSpirit69]

❓ Question

Hello,

I am trying to use C++ LibTorch models with PyBind11 in Stable-Baselines3.

The problem is that C++ models cannot fully replace Python PyTorch models.The Python code in Stable-Baselines3 cannot recognize C++ models as drop-in replacements.

Is this limitation from PyTorch itself or from Stable-Baselines3, and is there a recommended way to handle it?

Checklist

• I have checked that there is no similar issue in the repo
• I have read the SB3 documentation
• I have read the RL Zoo documentation
• If code there is, it is minimal and working
• If code there is, it is formatted using the markdown code blocks for both code and stack traces.