For example I'm learning German and I realised I can give Claude a list of the words I heard in a documentary to get plural form, article, definition, example sentence etc, in a csv I can import to Anki.
I am interested in Chinese pop culture, texts, video games, etc. LLMs aren't just good at translation but also explaining the language, grammar, structures of characters, etc. DeepSeek can answer questions about Chinese video games that have characters that people like to cosplay but you can't find any information about in Western sources.