When you use a hammer or a drill, do you expect it to sometimes not hit/screw the nail?
If ChatGPT is a tool for knowledge transfer/extraction, it can't hallucinate/lie to you/be wrong/make stuff up.
If it's a tool for potentially discovering some knowledge that may be true and needs to almost always be verified by either a compiler or a followup "find me a reference/discussion" Google search to make sure it's accurate, then sure. But I don't think that's what it's primarily being advertised as.