# SegmentSage > AI customer segmentation for e-commerce. SegmentSage is an AI segmentation tool for e-commerce brands. It clusters your customers by what they actually do, including products browsed, price sensitivity, purchase cadence, and discount usage, and keeps those segments updated every day. Marketers use the segments to target email, SMS, and ads at the people most likely to respond. SegmentSage is a standalone product. This site describes what the product does, how it works, how it compares to standard approaches, and answers common questions. ## Pages - [Home](https://segmentsage.com/): product overview, comparison, and FAQ - [How does SegmentSage build customer segments?](https://segmentsage.com/#s0) - [Where do SegmentSage segments go to work?](https://segmentsage.com/#s1) - [Why do behavioral segments beat rules based lists?](https://segmentsage.com/#s2) - [FAQ](https://segmentsage.com/#faq): common questions about SegmentSage and its category ## Contact - Free personalization audit: hello@segmentsage.com