Hi @Buckeyes2019, looking at the docs 4 for MBart, it seems that you need to prepare the data in a special format and define decoder_start_token_id
I’m not sure whether that will solve your truncation issue (I wonder if you can set max_length in model.generate to a larger value?) and looking at your example it seems like the model is “summarising” the input text instead of translating it which seems odd to me …