Yes
I use Github copilot (I believe it uses GPT-3?) to write my latex documents and it works really well at predicting the equations I am writing and saves a lot of time!
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In the thread “ChatGPT is really good at roleplaying”, replying to this comment
Helped: Predicting equations in LaTeX documents.
… I'd say GPT4 does pretty good sometimes (this is mostly me testing to see how well it works, I don't have a particular use case). I use Github copilot (I believe it uses GPT-3?) to write my latex documents and it works really well at predicting the equations I am writing and saves a lot of time!