A few hot startup rounds (may 27) 🤖 Exa raised a $250M Series C at a $2.2B valuation: a search engine built for AI agents that uses semantic embeddings to return meaning-matched results, not just keyword hits 🛡️ RADAR raised a $170M Series B: overhead RFID sensors that give physical retailers a live, 99%-accurate inventory snapshot updated every 8 seconds 🧠 Dust raised a $40M Series B: a multiplayer AI platform where human employees and AI agents share the same documents, tasks, and context i