Grok image to video is a first-frame continuation
Unlike text-only generation, Grok starts from the pixels you provide. That opening frame establishes what should remain recognizable; the motion brief defines how the scene evolves after it.
Lock the subject before motion
Use a frame where the face, product silhouette, typography, or main prop is easy to read. A stable visual anchor gives Grok less ambiguity to resolve.
Describe the next beat
Write what changes over time: a glance, reveal, walk, light shift, or camera move. Do not spend the prompt repeating details the source frame already proves.
Tune movement in deliberate passes
When a result drifts, simplify the action or camera direction. When it feels too still, add one purposeful movement before adding more atmosphere.

