It is hard to recommend Python in production

Now that Rust exists and llm can easily lift a more junior person over the initially difficult parts, there are not many things you should use python for.

Now that AI based verification exists, I can just write C again and call it a day.

That's false even as a joke. C is less safe than either of python or Rust and has no benefits against Rust.

> C is less safe than either of python or Rust and has no benefits against Rust.

Indeed.

I wonder if Rust or C would decrease need for power use while training those models.

It definitely will. Whether it will make a noticable difference depends on how much non-cuda work happens in model training.