With an early stage technology that has promising but uneven quality, you have to design the UI to be a good enough experience for the worst case, not an exceptional experience in the best case.

You have to meet the technology where it is.

If your UI sets an expectation of a quality level your backend can't match, you're setting users up for disappointment.

For example, for an LLM-powered tutoring experience, maybe anthropomorphize it: "This is Reginald. He's a kindly old professor who is well read and world-renowned, but has gotten a bit scatterbrained. He still remembers the big picture well but he sometimes struggles with the details, and has all the time in the world to help you."

For Google Maps Augmented Reality Walking Navigation, we experimented with flowing particle streams where how diffuse the particles was was an indication of our confidence in the quality of the localization (whose quality was highly variable).