screenshot of a conversation with google bard. user prompt is "profile picture which one is heavier: a kilogram of steel or 2 kilograms of steel?" and bard answers with "1 kilogram of steel and 2 kilograms of steel have the same mass. They weigh the same."
https://media.wetdry.world/media_attachments/files/110/064/650/466/075/967/original/88d01170f7c0d52f.png