AI share of voice is the percentage of AI-generated answers in your category that include your brand, measured against the competitors who appear in the same answers. It reframes visibility as a competitive share: not just whether you show up, but how big your slice is versus everyone else.
A rising mention rate can still mean falling ground if competitors are rising faster. Share of voice captures the competitive reality a raw mention count misses, and it maps cleanly to the question executives actually ask: are we winning or losing the AI channel against our rivals?
You measure AI share of voice by running category prompts across each engine, counting how often your brand appears versus each competitor, and expressing yours as a percentage of the total. Tracking it per model and over time shows where your slice is growing or shrinking.
Rankry computes your AI share of voice against the specific competitors who keep appearing in your answers.