Grok Imagine Video Guide: Image to Video With Sound

Grok Imagine is xAI’s generation space for images and short videos, separate from asking Grok for a picture in chat. Its distinctive feature is that video comes with generated audio, so a clip of a kettle boiling has a kettle sound, and a character can speak a short line. The reliable workflow is image first, then animate. This guide walks through that, explains how to write a prompt that covers both motion and sound, and sets expectations about length, quality and limits, which depend on your plan and region.

Where to find it and what it makes

Grok Imagine is available on grok.com and in the Grok and X apps for eligible plans and regions, usually as its own tab or entry point rather than a chat message. Inside, you can generate images from text, generate video from text, or animate an image you have just made or uploaded. Clips are short, in the range you would expect for social media, and include a generated soundtrack of ambient audio, effects and sometimes speech.

Feature availability has rolled out unevenly, with the mobile apps often ahead of the web. If a control described here is missing, it may not have reached your plan or region yet. Check xAI’s current help pages for what is included.

Step by step: image to video

1. Make the still first. Generate it in Imagine or upload one. Use the orientation you want for the final clip, typically portrait for social. Keep the subject clear of the edges so motion has room. The Grok image generation guide covers prompting for the still.
2. Open the animate option. Select the image and choose the control that turns it into video. The label varies between apps.
3. Write a motion and sound prompt. One sentence for movement, one for the camera, one for sound if you want to steer it. "The kettle begins to steam and rattle. Camera holds still. Soft kitchen ambience, kettle whistle building."
4. Pick a mode if offered. The interface may present mood or intensity presets. Start with the most neutral option so you can judge the base motion.
5. Generate and review with sound on. Watch at full size, then check the first and last second where artefacts tend to appear. Listen for audio that fights the picture.
6. Iterate with one change. Adjust either the motion, the camera or the sound, not all three, so you learn what moved the result.

Prompting for motion and audio

Image-to-video prompts should not describe the scene again; the still already does that. Focus on:

• One action. "The woman lifts the cup and takes a sip." Several actions in a short clip produce warping.
• Camera behaviour. "Static", "slow push-in", "gentle handheld". Without instruction the model often adds motion you did not ask for.
• Pace words. "Slowly", "gently", "subtle" keep the clip within what the model can render cleanly.
• Sound cues. Name the ambience and any effect: "rain on a window, distant traffic". For speech, keep it to a short line in quotation marks and expect lip-sync to be approximate.
• What stays fixed. "Lighting and colours remain constant" reduces drift.

For text-to-video with no still, put the scene description first in two sentences, then the motion and sound sentences. Expect less control over composition than the image-first route.

Settings at a glance

Imagine exposes a modest set of controls, and their names differ between the web and the apps. Treat this table as a map of what you can influence, not a list of exact labels.

Clip lengths, resolutions and daily allowances change as the product develops, so do not rely on figures from older articles.

Common problems

• The subject warps. Too much motion requested. Simplify to one action and add "subtle".
• Unwanted camera movement. Say "camera holds still" explicitly.
• Audio does not match. Name the sound you want; left open, the model guesses. If speech is wrong, shorten the line or drop it and add a voice in your editor.
• Text in the still smears. Remove lettering before animating and add titles afterwards.
• The feature is missing. It may not be available on your plan or in your region yet. Check the apps as well as the web.

Try it

Still: A ceramic teapot on a windowsill, rain streaking the glass behind it, soft grey daylight. Portrait orientation.
Animate: Steam rises slowly from the spout and drifts right. Camera holds still. Sound: gentle rain on glass, a faint kettle hiss, no music.

Rerun with "slow push-in" in place of "camera holds still", then with "soft piano, no rain" as the sound cue. Two clean comparisons tell you more than five random retries.