Building AI Agents That Actually Work: Lessons from Jason Lemkin, Jeanne DeWitt Grosser (Vercel), Amelia Lerutte & Amjad Masad (Replit)

The half-day that kicked off SaaStr AI Annual 2026 was the most concrete look we’ve put on a stage at what running a company on AI agents actually looks like. Not the hype version. The real v……