Some LLM spell check experiences

A few days back, I hacked up a little minor mode for Emacs to use an LLM for spell checking. (Before you get a heart attack — I did not say “editing”, “getting ideas” or “research”: Just spell checking. Using an LLM for actual writing isn’t just a bad idea — it leads to abhorrent results.) I’ve been running a random selection of blog posts I wrote for the Comico read through blog to see whether the thing works well — and… yes! But also no. OK, positives first: 1) For simple typos, it’s very good indeed — it finds them all. c) For word substitution errors, like “to” instead of “too”, it’s also very good. II) For grammar errors, it’s more mixed. It’s good at, for instance, basic noun/verb agreement, so if I’ve written “they writes”, it fixes that. But if the noun clause is long and complex, it doesn’t always react. I’ve experimented with adding/removing an “s” from the verb in sentences like that, and it sometimes lets both versions through without comment. ⁵) Since I’m usually giving…