It was discovered in WhatsApp beta version 188.8.131.52, and WABetaInfo was able to get it working. We can see an open chat in the screenshot. When you’re in the Stickers section of the keyboard, a banner will stretch across the top of the keyboard. It prompts you to create your own sticker with the green “Try it” text. According to that, there’s a Create button with the classic sparkle icon, which has become the standard generative AI icon.