Ask HN: How has AI changed your project estimates and team composition?

An Ask HN post asks engineering leads, CTOs, and PMs how AI-native development has changed planning and estimation for production software projects that traditionally needed teams of 6 to 10 people. It asks whether teams are now smaller or the same size with different skill sets, how cost and timeline estimates compare to two years ago, and what has changed about delivery bottlenecks, requesting concrete real-project examples and related media.