Generative B-Roll Service Build Blueprint

One-page reference for assembling a generative b-roll service for OTT post-production: the router-first reference architecture, the build-vs-buy verdict per component, the 2026 model field with per-second prices, the per-clip cost arithmetic against stock and a shoot, the five-milestone build order, and the four rights-and-provenance gates including the EU AI Act Article 50 disclosure dates.