>They all use the same model and the same transformer algorithm. The model has an EULA, you need to apply for downloading it, the training data set and the training software are closed.

Everything in that sentence is false except the training data part.

>So the "competitive" system means that everyone uses LLama and PyTorch.

This sentence shows you don't understand the LLM landscape and it's also false.

>Sounds really open

Correct. They partner with practically every vendor available for inference, which, isn't even needed if you run their models locally.

Meta has done a lot of wrong things over the years. How they are approaching LLMs is not one of them.