A collection of a brand's core visual assets and rules, such as logos, colors, and style.
A brand kit is a collection of a brand's core visual assets and rules: logos, colors, fonts, and guidelines for how they are used, so everything a brand makes looks consistent.
Traditionally a brand kit is a static reference. Modern AI tools extend the idea into a generative brand world, where the kit is not just documented but used to actively produce new, on-brand images.
Typically logos, color palette, fonts, and usage rules, and increasingly the reusable people, products, and styles a brand generates from.
A brand kit documents the look. A brand world lets you generate new images from it while staying consistent.