Remotion Alternatives for AI Video Editor

Building an AI video editor — a product where users describe what they want and an AI assembles, edits, and refines the video — has a specific engine requirement that most “Remotion alternatives” lists never address. The insight that shapes everything: an AI video editor is two systems, not one. The AI layer (LLM planning, tool use, generation) is the part everyone talks about. But underneath it lives a composition engine that…