xAI’s image-to-video model is out of preview and now takes text, image, and voice references — up to seven images per clip — with native 1080p and text-to-video.
xAI has launched Grok Imagine Video 1.5 as its best image-to-video stack yet: sharper motion and physics, native synced audio, faster generation, then a July update that adds multi-reference control, voice consistency, text-to-video, and native 1080p.
The path was quick. On June 3, 2026, xAI put grok-imagine-video-1.5-preview on the API for image-to-video up to 720p from a still frame plus a motion prompt. On June 16 it went generally available as grok-imagine-video-1.5 on the Imagine API, with Video 1.5 Fast on grok.com/imagine and the Grok iOS and Android apps. xAI says sound effects, ambience, and dialogue land in the same pass as the picture; motion holds weight and momentum better over a clip; and Fast almost doubles speed — about 25 seconds for a 6-second 720p video, down from 40+ seconds before.
The bigger product story is references. On July 31, 2026, Imagine Video 1.5 gained text, image, and voice references. You no longer need a single starting frame only: describe the shot for text-to-video, or feed references to lock identity. Image and voice references started in the US for SuperGrok Heavy and SuperGrok Plus on web and iOS, then roll out to all tiers. Multi-reference lets each image pin one thing — face, product, or location. Keep the character and change the set, keep the set and swap the character, or hold both and only change the action. Up to seven reference images per generation. Pass a character image plus a voice reference and both stay consistent across scenes — same face, same voice.
Native 1080p is supported for text-to-video and image-to-video on grok.com/imagine, iOS, and Android. In the xAI API, image references, text-to-video, and native 1080p are live on grok-imagine-video-1.5; voice reference support is available on request. Workflow extras on Grok Imagine include Projects, multiple agents running prompts in parallel, and library search for past clips.
Read more: Imagine Video 1.5 with References, Grok Imagine Video 1.5 GA, 1.5 Preview, and the video generation docs.
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