Type a URL into BannerKit AI and seconds later you have a banner with the right headline, the right colors, and a background image that actually fits the brand. No design files. No brand guide upload. No color picker. Here's how the pipe works under the hood — and why we ended up using Google's Gemini models instead of the more obvious choices. The problem "Make a banner that matches my brand" is a deceptively hard ask. You need to know: * What the brand actually looks like. Logo, colors,
