That’s if you have disparate prompts and don’t want to actively select a model. If you’re developing a pipeline, it’s a terrible idea. You want to choose a model, validate it, then stick to it.
I have, but honestly that was exactly what I am not looking for. Sometimes it picked a model for a Dutch email that totally does not support Dutch. Other times it would work fine. It's just a layer of indeterminism I wasn't looking for.