BaseFrame

BaseFrame is a San Francisco AI startup from Y Combinator's Winter 2026 batch, founded by UC Berkeley classmates Anshul Paul and Vaibhav Agrawal. The company has iterated quickly across the AI stack - launching first as an AI copilot that catches hardware design flaws before boards are built, then as a desktop app that scans a team's own work history to find what AI can automate, and most recently pivoting to Clam, a 'Semantic Firewall' that adds enterprise-grade security around broad-access AI agents. Across all three, the thread is the same: make powerful AI safe, useful, and grounded in real work.