Swedish has informal as the default register instead.

I think the idea is they just feed each to the RLHF reward model used to train the model and return the most rewarded answer.

> if you could do this automatically, it would be game changer as you could run top 5 best models in parallel and select best answer every time

remember they have access to the RLHF reward model, against which they can evaluate all N outputs and have the most "rewarded" answer picked and sent

-pro models appear to be a best-of-10 sampling of the original full size model