Building an Agentic Video Editor for Mass Consumer — Ekaterina Deyneka, Reelful
Aug 18, 2026 · 12:45
Ekaterina Deyneka, founder and CEO of Reelful, presents her agentic video editor as structurally identical to an agentic app builder, with editing real footage harder than generation. At Reelful, users drop in media plus a prompt, and the agent understands the media, proposes a creative plan for approval, then spins up a remote sandbox where agent skills encode cut rules, font pairings, and b-roll generation. Video is composed as React code via Remotion, a verification layer catches composition errors and sends the agent back to reiterate, and the result renders to a polished clip. To hide this complexity from consumers, Reelful is mobile-first with directional templates and a building editor for tweaks. Deyneka demonstrated clips made purely by the agent and announced Reelful's funding from a16z Speedrun.
