What you’re citing aren’t LLMs, however, except for translation. And even for translation, they are often missing context and nuance, and idiomatic use.
Which models are you referring to when you say "they"? I regularly use chatGPT 5.2 for translating to multiple languages, and have checked the translations regularly with native speakers and most stuff is very spot-on and take into account context and nuance, especially if you feed them enough background information.
Yeah, but the parent comment didn't mention LLMs. I think people get over hung up on the limitations of LLMs when there's a lot of other stuff going on. Most of the leading AI models do things other than language as well.