Glossary · Measurement
Cross-Engine Benchmark
A side-by-side comparison of a brand's visibility metrics across multiple AI engines — ChatGPT, Claude, Gemini, Perplexity — run on the same prompt set.
What it surfaces
Running an identical prompt set across every major engine and lining up the results — share of voice, sentiment, inclusion rate, per engine — shows exactly where a brand's visibility is strong on some platforms and absent on others, rather than relying on a single blended average that hides the difference.
How it relates to engine parity
A cross-engine benchmark is the comparison itself — the table or report laying results side by side. Engine parity is the derived score summarizing how close those results are to each other; a benchmark is what you run to calculate a parity score in the first place.
See more terms in the full glossary, or read the AI Visibility 101 guide for the full picture.