it depends what level of abstraction you are taking from the raw actions within the program.

A lot of 3D stuff that can be automated already is, you can write scripts.

Having an AI 'script writer' helper that takes in natural language and produces a python script can already be done. It's my go to thing to test chat bots, to ask them to generate simple scrips for Maya. (the you.com one got a bit better at that recently)

If however you are asking for something like 'create me a full sci-fi environment' or 'rig this model' or 'animate this armature like this' and it just does, well we are not there yet. There are scripts, asset libraries, etc... that streamline these processes but nothing end to end driven by natural language with zero manual input from a human.