​OpenRouter, PostHog and Foundations present Building for Model Volatility — three demo-based talks and a panel with engineers who are actually solving this problem in production. Who this event is for: AI Engineers, product engineers, data engineers, and researchers building businesses that pressure-test models. What you'll leave with * ​Frameworks for building systems that survive model churn * ​Practical instrumentation approaches for LLM-powered products * A workflow to test your agents and change models confidently * ​A clearer mental model for when and how to abstract away your AI stack