In early 2025, the Prompt-Space Occupancy Score (PSOS™) introduced a reproducible way to measure how brands appear within AI assistant responses. It established visibility as a quantifiable, auditable dimension of brand equity.

PSOS-C, the conversion-weighted evolution of that metric, extends PSOS beyond exposure. It connects assistant-level visibility to measurable user actions and verified financial outcomes through a transparent, auditable attribution chain. PSOS-C closes the loop between being seen and creating value—transforming AI visibility into a governance-grade financial indicator.