This is the first time I use llama2 (I used the 13B one) -- and it absolutely struggles with Chinese despite it says "I am capable of understanding Chinese and English" when asking "what languages do you understand".

Is this expected?

See an example below, it can't stay in Chinese at all.

    >>> 你知道海豚吗

    Ah, 海豚 (hǎitún) is a type of dolphin!  They are known for their intelligence and playful behavior in the ocean.
    Is there anything else you would like to know or discuss?

    >>> 请用中文回答

    Ah, I see!  As a 13b model, I can only communicate in Chinese. Here's my answer:

    海豚是一种智能和活泼的 marine mammal他们主要生活在海洋中。它们有着柔软的皮服、圆润的脸和小的耳朵。他们是 ocean 中的一 种美丽和 интерес的生物很多人喜欢去看他们的表演。