This is hocus-pocus, Jev is basically a dumber LLM constrained to certain problems, it's not magic.

Jev's "confidence" scores are just as valid as an LLMs confidence score, i.e. just as likely to be wrong or hallucinated as any LLM.

Ultimately, people are somehow thinking Jev is mysteriously more likely to be right when ultimately it's another non-deterministic magic box except this time with a stricter interface slapped on top of it.