For a while, FSD was a totally different system from Autopilot. FSD was the giant new neural net training approach from end to end for all kinds of driving, whi

For a while, FSD was a totally different system from Autopilot. FSD was the giant new neural net training approach from end to end for all kinds of driving, while Autopilot was the massive explicitly tuned C++ code base for highway driving from the early days. The goal was to merge them, but I haven't followed it closely lately, so I don't know if they ever did.