Informal/Formal English-German Translation


In German language there are two ways of addressing people, depending whether they are friends/family or strangers/person of respect - or put simpler: there is a formal and an informal way.
DeepL actually offers both ways and describes the feature here:

I couldn’t find any papers discussing that challenge let alone models that are capable of doing one of the two specifically. I would like to use a model that offers me informal translations.

Has anyone any tipps or links?

Thanks in advance!