NovaMotions AI

Grok AI video generator

Fast 6-second videos with native audio

  • Fast renders
  • Native audio
Create fromAnimate a first frame, optionally end on a last frame
First frame
First frame
Upload
Resolution

Follows your first frame

Generate audio
Dialogue, effects and ambience. Adds 20 credits.
Cost … credits
  • Use a sharp first frame with the subject well lit.
  • Add a last frame to control where the clip ends.
  • Describe motion and camera, not what is already in the picture.

The camera slowly pans upwards as the city awakens, capturing the gradual shift from artificial to natural light, evoking tranquility and wonder.

The camera tilts down to the steaming coffee as rays of sunlight dance around, creating an inviting and warm atmosphere.

The camera slowly zooms in on the figure, who turns and walks deeper into the shadows, heightening the suspense.

The camera circles the DJ as the lights pulse to the beat, capturing the electrifying, energetic ambiance of the dance floor.

The gadget rotates slowly, highlighting its cutting-edge design and technology while the camera gently zooms in to focus on its features.

The camera shakes slightly as hands organize the desk, placing items neatly and opening the notebook, creating an inspiring and relatable scene.

Text overlays appear with tips as the camera smoothly pans across the plants, enhancing the educational and calm tone.

The colors pulse and shift rhythmically as the text pops in and out, creating an exciting and inviting introduction.

The camera glides through the forest, revealing hidden creatures and ancient ruins, building excitement and mystery.

The camera does quick cuts between different poses, capturing the energy and flair of urban fashion.

The camera dramatically swoops over the armies, building anticipation with the swell of the storm and distant battle cries.

The camera captures the motion of a squat with fluid movements, emphasizing form and guidance with upbeat energy.

What is Grok?

Grok is the quick-fire video model on NovaMotions AI. It makes 6 second clips with native sound on by default, from a text prompt or one start image, in 480p or 720p and in 16:9, 9:16 or 1:1. Renders usually come back in about a minute and a half, which makes it ideal for reactions, memes and fast social ideas.

longest clip
6 s
highest resolution
720p
aspect ratios to choose from
3

What Grok does well

The strengths worth knowing before you write your first prompt.

  • Fast renders

    Most clips are ready in around a minute and a half, the quickest turnaround of any video model on NovaMotions AI.

  • Sound on by default

    Every clip comes with matching effects, ambience and dialogue unless you switch audio off.

  • A punchy 6 seconds

    One fixed length that fits a gag, a reaction or a product moment. Short clips keep the idea tight.

  • Animate an image

    Upload one start image to animate a photo, a meme template or a product shot with sound.

  • Social-first formats

    Render 9:16 for stories and short-form video, 1:1 for feeds or 16:9 for widescreen, at 480p or 720p.

What you can make with Grok

  • Reaction clips and memes

    A surprised cat, a dramatic zoom, an over-the-top reaction. Six seconds with sound is all a meme needs.

  • Quick product moments

    Show a product doing one thing well, with a sound cue that makes it land, ready to post the same day.

  • Idea sketches

    Test a concept in under two minutes before deciding whether it deserves a longer, higher resolution render.

How to use Grok

Four steps from an idea to a finished clip, all in the workspace above.

  1. 01

    Choose Image or Text

    Start from Text to describe the whole clip, or from Image to bring one picture you already have to life.

  2. 02

    Add a start image

    In Image mode, upload one sharp, well-lit picture. It becomes the opening frame, so leave a little room around the subject if the camera will move.

  3. 03

    Write the prompt

    Describe the action, the camera move and the mood in a sentence or two. One main action per clip reads better than three.

  4. 04

    Set the shot and generate

    Every clip is 6 seconds. Choose 480p or 720p, 16:9, 9:16 or 1:1 and audio, check the credit cost on the button, then generate.

Grok vs Kling 2.6 vs MiniMax H3

All three generate sound with the picture. Grok is the fastest for short clips, Kling 2.6 offers 10 seconds and 1080p, and MiniMax H3 stretches to 15 seconds with references.

Grok vs Kling 2.6 vs MiniMax H3
CompareThis modelGrokKling 2.6MiniMax H3
Best forFast 6 second clips with soundCinematic shots up to 1080pLong talking clips for less
Ways to createImage, TextImage, TextMedia, Image, Text
Longest clip6 s10 s15 s
Highest resolution720p1080p720p
Aspect ratios16:9, 9:16, 1:116:9, 9:16, 1:116:9, 9:16, 1:1, 4:3, 3:4, 21:9
Media referencesNot availableNot availableUp to 9 images, 3 video clips, and 3 audio files
Native audioOn by defaultOn by defaultOn by default
Typical render timeAbout 90 secondsAbout 3 minutesAbout 3 minutes
Starting priceFrom 47 creditsFrom 41 creditsFrom 30 credits

Grok specs

These limits come straight from the workspace settings, so they always match what you can pick above.

Ways to create
Image to video and Text to video
Clip lengths
6 seconds
Resolutions
480p or 720p
Aspect ratios
16:9, 9:16, or 1:1
Image input
One start image
Native audio
Yes, on by default
Prompt length
Up to 10,000 characters
Takes per run
1 to 4
Typical render time
About 90 seconds
Starting price
From 47 credits

Prompt examples for Grok

Press Try this and the prompt lands in the workspace above, ready to generate or tweak.

  • Text to video

    Dramatic cat

    A fluffy orange cat on a sofa slowly turns its head toward the camera in shock as a cucumber rolls into frame. Fast dramatic zoom on its face, comic timing, a record scratch and a single gasp.

  • Text to video

    Soda can crack

    Close-up of an ice-cold soda can on a sunny picnic table, condensation dripping, a hand cracks it open and fizz sprays up in slow motion. Bright summer light, crisp crack and fizz sound.

  • Text to video

    Grandpa's dance move

    At a backyard party, a grandfather in a floral shirt suddenly breaks into a smooth moonwalk as the family cheers. Handheld phone-style vertical shot, warm afternoon light, upbeat music and laughter.

Grok questions

Short answers about modes, limits, credits and rights.

Ready to try Grok?

The workspace is at the top of this page. Generations start from 47 credits, and failed jobs return their credits automatically.

See pricing

Still have a question?

Our team answers within one business day. The prompt guide covers references, camera moves, text and sound.

What is Grok?

Grok is a fast video model on NovaMotions AI. It makes 6 second clips with native audio from text or one start image, in 480p or 720p and in 16:9, 9:16 or 1:1.

Can I make Grok clips longer than 6 seconds?

Each generation is 6 seconds. To go longer, open a finished clip and use Continue from last frame, or switch to Kling 2.6 for 10 seconds or MiniMax H3 for up to 15.

Does Grok generate sound?

Yes. Native audio is on by default with effects, ambience and dialogue. Switch it off for a silent clip if you prefer to add music later.

How fast is Grok?

Most clips are ready in about a minute and a half, the quickest of the video models on NovaMotions AI.

Can I use a first and last frame or references?

Grok animates one start image and does not take a last frame or reference files. For those, try Kling O3 or Seedance 2.0 Pro.

What makes a good 6 second prompt?

One idea, one action and one sound cue. Set up the moment, describe the payoff and name the sound, like a record scratch or a crowd cheering. Leave out anything that needs more time.

Which resolution should I pick?

720p looks sharp on phones and is the better choice to publish. Use 480p for quick tests when you only want to check the idea.

How many credits does a Grok clip use?

It depends on the clip. Longer clips, higher resolutions and native audio use more credits. The exact amount shows on the Generate button before you spend anything, and the same balance works for video, images and music.

What happens if a Grok generation fails?

Every credit goes straight back to your balance automatically. There is nothing to claim or report. Adjust the prompt or the settings and try again.

Can I use Grok videos commercially?

Yes. Every plan includes commercial use and downloads have no watermark. You are still responsible for what you make, so avoid real people, logos or characters you do not have the rights to.

Explore more models

One credit balance works for every model. Switch any time from the sidebar.