Klaviyo offers Forms AI (also called Forms Display Optimization), an AI feature that automatically tests multiple display-timing configurations for website signup forms — such as when a pop-up appears on a page — to find the version that generates the highest conversion rate. It was announced as part of the February 2024 Klaviyo AI launch.

Forms AI uses machine learning to test AI-generated alternative display-time configurations for email signup forms against each other, optimizing for form completions. The system identifies the best-performing display timing without manual A/B testing setup by the marketer. According to Klaviyo's documentation, the feature is embedded in the forms editor and runs continuously, requiring no manual intervention once enabled.