> non-deterministic answers
It doesn't make sense to get hung up on this aspect of LLMs. We prefer non deterministic so far because it tends to work slightly better even if it is completely possible to ask for a temperature=0 deterministic answer.
With more scale and research, at some point you'll get results that are both useful and deterministic, if it's not already the case.
It absolute makes sense to get "hung" up on something when it comes to planning society around it JFC. I'm with the other commentator, your understanding of these tools should be taken into question since you seem to be reading the tea leaves of statistical noise.