Google Meridian

Overview

Meridian is Google’s next-generation open-source Marketing Mix Model. It provides a robust Bayesian framework for measuring marketing impact across channels.

Key Features

• Bayesian causal framework — uses prior knowledge and uncertainty quantification
• Reach and frequency support — native handling of GRP and reach data
• Adstock transformations — geometric and Weibull decay functions
• Budget optimization — built-in optimizer for channel allocation
• GPU acceleration — leverages JAX for fast inference