Google's Assistant has become the first service of its kind to gain bilingual abilities. At the moment, you can talk to it in any combination of English, German, French, Spanish, Italian, and Japanese, while more languages are going to be supported for this new feature "in the coming months". The company's demos show full sentences spoken in each language, to which the Assistant responds appropriately. So it seems like you can't mix and match languages within the same request you make to it, but this is still quite the technical accomplishment, part of Google's multi-year effort to make...
Source: https://www.gsmarena.com/google_assistant_is_now_bilingual-news-33027.php
