[christophilus]

I’ve found that they vary a huge amount based on the subject matter. In my case, I have noticed the opposite of what you observed. They know a lot about the web space (which I’ve been in for around 25 years), but are pretty bad (though not useless) at esoteric languages such as Hare.

[drcxd]

Obviously, since the training material for such esoteric languages is scarce. (That's why they are esoteric!) So by definition, LLM will never be good at esoteric languages.