Turn a photo into an Imagine video on grok.com or the app

Grok Imagine Video 1.5 Fast on grok.com/imagine, iOS, and Android animates a still into a short clip with sound in the same pass. The still is the opening frame. Your prompt steers motion, camera, and audio.

For the developer endpoint (grok-imagine-video-1.5 with an image input), use the separate API how-to on image-to-video.

On the web

1. Open grok.com/imagine and sign in.
2. Upload a photo, or open a still already in your Imagine library.
3. Switch the session to video if the Image / Video control is showing Image.
4. Write a motion prompt only: what moves, how the camera travels, weather or cloth, and any sound you want. Skip re-describing the whole scene the photo already shows.
5. Set duration and resolution from the controls you see after login. xAI’s Video 1.5 Fast speed quote is about 25 seconds to produce a 6-second 720p clip.
6. Generate. Play once. Change one variable (push-in vs pan, shorter action, quieter audio) and generate again.

On iOS or Android

1. Open the Grok app and go to Imagine.
2. Add a photo from the camera roll, or start from a still you already generated.
3. Choose video / animate when the picker offers it.
4. Same motion-only prompt discipline as the web.
5. Generate, review, then extend or edit only after the first take reads clean.

Prompt that holds

Name the verb and the camera. Examples that stay short:

• Slow push-in, subject turns toward camera, soft wind in the jacket, quiet room tone.
• Handheld pan left, leaves move, distant traffic, no dialogue.

If the face or product melts, shorten the action and keep the source still sharp.

Pitfalls

• Video spends the shared SuperGrok weekly pool faster than a still. Check Settings → Usage before a long session.
• Native audio (ambience, effects, speech) arrives with the clip. Ask for silence in the prompt when you need a quiet plate.
• App Store copy, marketing pages, and the live controls can disagree on max length and resolution. Teach from the control you see after login; Video 1.5 docs cover up to 15 seconds and higher resolutions on supported paths.
• Do not paste API fields (image_url, reference_image_urls) into the consumer box. Those belong in Console / SDK calls.