Grok Imagine Video 1.5

Grok Imagine Video 1.5 is xAI's AI video model and the successor to Grok Imagine 1.0. It turns a text prompt, a start image or reference images into clips of up to 15 seconds, with sound effects, ambience and dialogue generated in the same pass. Its API name is grok-imagine-video-1.5.

A preview appeared at the end of May 2026, and xAI made Grok Imagine Video 1.5 generally available on its Imagine API on 16 June 2026, retiring the preview. At the same time xAI rolled out a faster Video 1.5 Fast build in the Grok web, iOS and Android apps.

Not on Kenerate's free plan — video needs a paid plan, which means any one-time credit pack (from $15 for 1,300 credits, no subscription). New accounts get 25 credits for images. In xAI's own Grok apps, free and paid limits are set by xAI; check grok.com for its current terms.

Open Kenerate's video studio at /app/video, pick Grok Imagine 1.5, add a prompt (and a start image or references if you want), choose length and resolution, and generate. You pay per clip in credits — no Grok subscription and no xAI API key.

On Kenerate it's 24 credits a second at 480p, 42 at 720p and 75 at 1080p, plus 3 credits for each input image. A 5-second 480p text-to-video clip costs 120 credits, a 5-second 720p image-to-video clip 213, and a full 15-second 1080p clip 1,125.

1.5 makes any length from 1 to 15 seconds and goes up to 1080p; 1.0 offers 6 or 10 seconds at 480p or 720p. xAI says 1.5 has steadier motion and physics and clearer, better-synced sound. 1.0 is cheaper (15 credits a second on Kenerate) and is the one that can edit and extend an existing clip.

1 to 15 seconds per clip, in whole seconds. For longer pieces, generate several clips — using a frame from the end of one as the start image of the next keeps the look consistent — and join them in an editor.

Yes. xAI generates sound effects, ambience and dialogue in the same pass as the video, so the audio follows the action. Describe the sounds in your prompt and put any spoken line in quotes.

Yes, for text to video and image to video. Reference to video, where you give it up to 7 images, is limited to 480p or 720p. 1080p costs 75 credits a second on Kenerate, so draft at 480p first.

Kenerate prices Grok Imagine 1.5 from the provider's per-second rate of $0.08 at 480p, $0.14 at 720p and $0.25 at 1080p, plus $0.01 per input image, at 300 credits per dollar. xAI's own API console shows its current list price; you don't need an API key to use it on Kenerate.