Runway Gen-3 Alpha: AI Videos That Look Real (for 4 Seconds)

Runway, the startup that made video generation accessible to mortals, just launched Gen-3 Alpha. It promises photorealistic videos with smooth motion and believable physics.

And it works: early examples show people walking without falling apart, objects dropping with gravity, textures that don't pixelate. It's impressive.

Until you realize each clip lasts 4-10 seconds, costs a lot in credits, and control is still limited to simple text prompts. No timeline, no frame-by-frame editing, no serious customization.

In short: great for demos and proof-of-concept, still far from replacing a real videographer. But in a year? Maybe.