I didn't know you were into this! We'll have something to talk about next time we meet.

I agree that the LLM has no intent (fingers crossed it doesn't). However, the training data probably contains plenty of "unsupported excuses" to draw from. So, to be precise, it's not lying. It's merely reproducing previously existing lies.

2/2 This was clearly a deliberate lie. Other queries on the same API worked, and when I ran the code, the connection was fine, but there were other, quite obvious, errors. It was a reasoning model that can run the code it works on, so it likely saw the same output as me but tried to find an excuse.

If you want to give it a try, there's an interface making PM6-ML available in MOPAC: github.com/Honza-R/mopa...