AI video stopped being one thing in 2026. This field report maps how it split into three distinct camps — Avatar Agents that synthesize a presenter, Generator Agents that sample footage from a prompt, and Motion Agents that call branded templates and render deterministic video — and documents the state of each with sourced market and company data. It covers the market's ~20% CAGR, Synthesia's $4B raise and HeyGen's enterprise base, Sora 2's launch-and-shutdown arc against Kling's revenue and Runway's world-model pivot, and the deterministic-vs-generative divide that decides which camp fits branded, repeatable video.