Building an Agentic Video Editor for Mass Consumer — Ekaterina Deyneka, Reelful

Agentic video editing automates the tedious, manual process of content creation by leveraging AI agents to handle media understanding, planning, and assembly. By inputting raw footage and a prompt, users receive polished, ready-to-share clips without needing traditional editing skills. The infrastructure relies on a sandbox environment where agents execute tasks like trimming, B-roll generation, voiceover creation, and image animation using the Remotion framework. To ensure accessibility, the platform prioritizes a mobile-first design, offering directional templates for specific use cases and a built-in editor for final refinements. This approach shifts the focus from manual manipulation to high-level creative direction, allowing agents to manage complex workflows while maintaining professional quality. Backed by a16z Speedrun, this technology aims to democratize video production for mass consumers by removing technical barriers and streamlining the entire post-production pipeline.