Grok Imagine Video 1.5 AI Video Generator

What Grok Imagine Video 1.5 does well

Video with audio that lands on the action

Grok Imagine Video 1.5 makes sound in the same pass as the picture. xAI says effects, ambience and dialogue land on the action, with clearer, better-synced speech than before.

Give the sound a visible moment to hit: a drop striking still water, a kettle starting to whistle, a firework at the peak of its burst.

The macro splash in the sample is that kind of frame, one sharp impact with a crown of droplets.

Describe what is heard and when, in the same sentence as the action. Listen to your first result to confirm the sound track comes through.

Cinematic 16:9 video keyframe, a macro slow-motion shot of a single water drop striking a still dark water surface, forming a clean crown splash with tiny droplets suspended in the air, cyan and magenta light reflected in the ripples. The exact moment of impact, crisp and resonant.

Several shots, one story

A story across several shots works well with Video 1.5 when you build it one shot at a time.

Plan the beats first, as in the sample grid: the pick-up at a noodle bar, the ride through traffic, the stairwell and the hand-over at a door. Then generate each beat as its own clip.

Start every shot from a still of the same courier, and repeat the same words for the yellow jacket, the black helmet and the bicycle in each prompt. Keep the colour grade identical, then join the clips in an editor.

A still made with Grok Imagine Image 2.0 can serve as that shared starting frame.

A two-by-two grid of four cinematic video frames following the same bicycle courier in a bright yellow jacket and black helmet at night: picking up a package at a noodle bar, weaving through traffic under neon light, climbing a stairwell, and handing the package over at a doorway. Same person, outfit and bicycle in every frame, consistent cyan and magenta grade, thin black borders.

Mood and continuity

Video 1.5 is good at keeping one mood for a whole clip. xAI says movement holds together over the length of a clip and ambience comes out with the picture, so a scene keeps its rhythm from start to finish.

A night drive is a good test: rain on the windscreen, wipers sweeping on a steady beat, neon ahead blurring into cyan and magenta bokeh, the driver's hands lit by the dashboard.

Name the repeating elements, such as the wipers, the rain and the passing lights, and keep the light sources the same from start to end.

Cinematic 16:9 video keyframe, the view from inside a car at night looking through a rain-covered windscreen, wipers mid-sweep, blurred cyan and magenta neon bokeh from the street ahead, the driver's hands on the wheel softly lit by the dashboard. Moody, rhythmic, immersive.

How to write prompts for Grok Imagine Video 1.5

1. Write the prompt as one line: subject, action, camera move, light. "A courier weaves through traffic, handheld tracking shot, neon at night" is enough to start.

2. Give the sound a cue: name what is heard and the moment it starts, such as "the kettle whistles as the steam bursts out".

3. For a sequence, keep the same description of the character and the same grade in every prompt, and change only the action and the place.

4. Start from an image when the look matters. The image becomes the first frame, so the prompt only has to describe the movement.

5. Draft at a short length and a low resolution, then render the take you like at up to 1080p.

Sample prompts to try with Grok Imagine Video 1.5

• 

  Lightning over the city

  Cinematic 16:9 video keyframe, a wide shot of forked lightning striking behind a city skyline at night, the flash illuminating low clouds in violet, rain falling in sheets over the rooftops, windows glowing cyan. The moment of the strike, dramatic and loud-looking.

• 

  Whistling kettle

  Cinematic 16:9 video keyframe, a close-up of a copper kettle on a blue gas flame at the moment it starts to whistle, a sharp jet of steam shooting from the spout, droplets on the lid, a kitchen window with a rainy night outside. Cyan flame and warm copper, tactile and sonic.

• 

  Fireworks over the harbor

  Cinematic 16:9 video keyframe, fireworks bursting in large chrysanthemum shapes over a harbor at night, sparks in magenta, cyan and gold reflected in the dark water, silhouettes of sailboats and people on the pier. The frame caught at the peak of a burst.

• 

  Cocktail shake

  Cinematic 16:9 video keyframe, a bartender in a black shirt shaking a steel cocktail shaker behind a dim neon-lit bar, then pouring it with ice and a splash of magenta liquid frozen in slow motion above a coupe glass. Cyan backlight, sharp droplets, rhythmic and precise.

Sample images are illustrative; results vary by model.

Grok Imagine Video 1.5 specs and pricing

Every price below comes from the live price list, so it changes here as soon as rates change. Credits are charged per image, or per second of video.

Grok Imagine Video 1.5 limitations

• Each generation is its own clip, so continuity across a sequence is up to you.

  Even with the same starting image and wording, details such as a logo on a jacket or the shape of a bag can shift between shots. Generate a few takes of each beat and keep the ones that match.

• Speech is clearer than in earlier Grok Imagine video, but lip sync on long lines, or with several people talking at once, still needs checking. Keep dialogue short and give each shot a single speaker.

• Lettering inside the frame is not reliable, and busy action where many people touch can still warp. Leave on-screen text for the edit and keep fast group action simple.