Oracle7 answers from records and checks, with no neural network. When it cannot verify an answer, it says so instead of guessing. Under each reply you can see which part of the system answered: the core, a specialist, or a check that declined. The diagram lights the path each answer took.
Nothing you type is stored: not your questions, not the answers. The conversation lives in memory and is lost when the service restarts. Limit: 12 questions a minute.