Google Translate is by no means a counter-example. Certainly, it's flawed and imperfect. But Google Translate is the state of the art. You will not find any

Google Translate is by no means a counter-example. Certainly, it's flawed and imperfect. But Google Translate is the state of the art. You will not find any existing purely automated system that does the task better. Sure, some hypothetical, possibly AI-complete system with rich language understanding would do better. Good luck building that, especially without processing a huge corpus.