Why do AI platforms like ChatGPT & Google AI Overviews give different answers to the same local business question?

AI systems are designed to generate unique responses each time, even for identical queries. This variability is why our multi-sample approach (AI Visibility Grid) is crucial—by collecting 9 (3x3) to 441 (21x21) different responses, we can determine how consistently AI mentions your business and identify patterns in when you're included versus excluded.