Every so often, it saves me a few hours on a task that's not very difficult, but that I just don't know how to do already. Generally something generic a lot of people have already done.

An example from today was using XAudio2 on windows to output sound, where that sound was already being fetched as interleaved data from a network source. I could have read the docs, found some example code, and bashed it together in a few hours; but I asked one of the LLMs and it gave me some example code tuned to my request, giving me a head start on that.

I had to already know a lot of context to be able to ask it the right questions, I suspect, and to thence tune it with a few follow up questions.