xAI Grok Imagine

Grok Imagine is xAI's generative media model, covering text-to-image, image-to-image and video from a single family. Its distinguishing feature in this catalog is duration: it supports longer clips than most video models, which typically cap out around 10 seconds.

That makes it worth considering when a shot genuinely needs to run long, and stitching several shorter generations together would show at the seams. It has a dedicated extend endpoint as well.

Standard-tier, though note that duration scales the credit cost — so a long clip is not cheap even at the base rate, and the saving against a premium model narrows as the shot runs on.