Lucent is a Y Combinator W26 company building an AI product manager that automatically improves products based on how users behave. The platform watches session replays around the clock to detect bugs and UX issues in real time, sending findings to tools like Slack or Linear. It is used by dozens of YC companies. Founded in 2025 by Alisa Wu (also known as Alisa Rae), Lucent raised a $2 million pre-seed round in October 2025 that reportedly closed within 36 hours, with backing from Long Journey Ventures, Browder Capital, and Weekend Fund.