karumi

Karumi is a demo agent for SaaS companies that replaces static, text-only chat with a live, multimedia experience. Instead of typing answers, the agent shows videos, screenshots, and actual product flows to prospects visiting a landing page or exploring inside an app. The agent learns from any software product, joins video calls with prospects, and navigates the product in a real browser while talking, listening, and taking actions , which is what the launch tweet points to when it calls text-only agents outdated. The launch matters because inbound demand rarely lines up with sales rep availability. Karumi lets SaaS companies deliver personalized product demos around the clock, and the multimedia layer announced in this launch is aimed at a specific pain: keeping visual walkthroughs current without a team re-recording videos every time the product ships changes. The pitch to founders and revenue leaders is faster time to the "aha moment" for high-intent leads and coverage for smaller segments that human reps usually skip. Karumi is built by Toni Lopez and Pablo Omeñaca, who previously worked together at StackAI (YC W23) , with Toni as founding engineer and Pablo as COO and founding engineer, before starting Karumi as part of Y Combinator's Fall 2025 batch. They have said they hit this problem firsthand watching their prior GTM team get pulled into repetitive demos, which is the wedge this launch is targeting.