Video: AI-generated footage and editing

Text-to-video went from novelty to genuinely usable in under two years — here is who is building it.

Overview AI Robotics Infrastructure Power & Energy Human Integration AI Toolkit Video Audio Business Apps Coding Industrial AI General Chat
The big picture: AI video generation split into two real categories: cinematic text-to-video tools (Runway, Luma AI, Kling, Pika) competing on visual fidelity and physics realism, and avatar/presenter tools (Synthesia, HeyGen) built for corporate training and marketing video at scale. None of these produce true photorealistic long-form footage reliably yet — most output is still short clips (a few seconds to a couple minutes) requiring human editing to assemble into a finished piece.
Video Tool Directory
Runway
Cinematic text-to-video, video editing
Luma AI
Text-to-video, 3D capture
Kling AI
Text-to-video (Kuaishou/China)
Pika
Fast text-to-video generation
Synthesia
AI avatar presenters, corporate video
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