Learn in the textbookHow AI Works: Transparency and Human Involvement
DefinitionRandomness (ランダム性) is the property that generative AI builds its output from probabilities, so the same prompt can give a different output each time.
ExplanationFor example, a text-generating AI assigns a probability to each candidate next word and picks words according to those probabilities, so when the chosen words change, the finished text changes too. This variation makes expression more varied, but it also makes the same result hard to reproduce. How much the output varies can be turned down or up, for instance through settings at generation time.
AnalogyIt is like ordering the same chef's choice at the same restaurant: the plating and side dishes differ a little from day to day.
Memory hook"Random" usually means haphazard or arbitrary, but here it means variation that follows probabilities.