There have obviously been amazing progress in deep-learning based NLP/speech-technology in recent years. As an english speaker, I was wondering how state-of-the-art varies across languages?

How are good are things like sentiment analysis, question answering, speech recognition in non-english languages?

Does anyone know of any failure modes in non-english European languages? and are there any good open source libraries for NLP in sub-continental languages like Hindi and Urdu?

thanks!