I'm a software developer by trade. LLM-based coding buddies (at least as of July 2024) are better than copy-paste for boilerplate, but I've never yet gotten one

I'm a software developer by trade. LLM-based coding buddies (at least as of July 2024) are better than copy-paste for boilerplate, but I've never yet gotten one to complete a novel class method in a way that saved time. And asking questions about Java or JavaScript? 100% wrong answers on the kinds of questions I ask it in practice; it always "rounds off" to the answer to a more common question.