24:29GigaML co-founder Varun describes how he and his co-founder left lucrative quant jobs to start a company, joined YC, and pivoted from EdTech and model fine-tuning to AI customer support after following customer demand. He explains how GigaML won enterprise customers including DoorDash by proving value through its product, and argues that early payment is a strong test of whether a problem matters. He also discusses building AI agents around business outcomes, using coding agents to help a small team ship faster, and developing an AI forward-deployed engineer to ease enterprise adoption. His advice to aspiring founders is to start building, sell early, and focus on delivering measurable value to customers.