Grok Imagine Video 1.5 API

xAI Grok Imagine Video 1.5: very low cost per second with strong motion quality. Image-to-video only: animate a start frame at 480p, 720p or 1080p for 1-15 seconds. Can be busy at peak times.

Kind: video
Brand: Grok
Price: 3 credits per second at 480p, 4 at 720p, 7 at 1080p (1 credit = $0.01 on monthly plans)
Released: 2026-06-01
Inputs: mode, image, prompt, duration, resolution, aspect_ratio

Call it with POST https://api.unicornapi.net/v1/jobs and model grok-imagine-video-1-5-preview.