[algoth1]

Wouldnt it be easier to fine tune a model to convert the Brazilian Portuguese corpus into European Portuguese and then use that corpus?

[kinow]

That idea is different than what most are talking here in other comments.

The grammar and vocabularies don't match, but I think the worst are the expressions. Both sides have *a lot* of expressions that vary per context and location.

[algoth1]

I’m a native Portuguese speaker, whom grow up watching morning Brazilian Portuguese cartoons. I would say it’s doable