Google Chrome may automatically download a 4GB weights.bin file to its system folders when certain AI features are enabled, leading to unexpected drops in available storage for users. This on-device AI model file is installed in the browser directory, contributing to increased storage usage.

Google Chrome installs a 4 GB AI model on user devices without consent, impacting privacy and potentially increasing climate costs at a billion-device scale. The installation occurs silently and can re-install itself if removed by the user, bypassing traditional opt-out options.