Grok Image Video by xAI: Complete Guide to Specs, Pricing & Prompts (2026)

Grok Image Video by xAI: Complete Guide to Specs, Pricing & Prompts (2026)

Grok Image Video is xAI's video model on Kensa. Write a prompt, or add one image and describe how it should move, and you get a 6- or 10-second clip at 480p or 720p for a fixed 5 to 15 credits. Grok Image Video is the cheapest per clip on Kensa, which makes it a good model for trying ideas quickly and for making lots of short clips. This guide covers what the model does on Kensa, what each setting costs, how to write prompts for it, and when another model is the better choice.

Updated September 28, 2026: We rewrote this guide to match how Grok Image Video works on Kensa today. Earlier versions described preset styles that Kensa does not offer, along with some outdated specs for other models. The prices below come from Kensa's current credit pricing.

Grok Image Video at a Glance

Try it: Grok Image Video on Kensa

What Grok Image Video Is

Grok Image Video is the name Kensa uses for xAI's Grok Imagine video model. When you write only a prompt, Kensa sends it to the text-to-video version of the model. When you attach an image, it goes to the image-to-video version, which animates your picture.

On Kensa you control five things: the prompt, an optional image, the length, the resolution and the aspect ratio. There are no preset styles, no negative prompt, no seed and no first-and-last-frame option for this model. That keeps it simple: the words in your prompt, and your image if you use one, decide what the clip looks like.

Pricing is per clip, not per second. The base price is 5 credits for a 6-second 480p clip. Choosing 10 seconds adds 5 credits, and choosing 720p adds another 5.

Specs in Detail

Length: 6 or 10 Seconds

Six seconds fits a hook, a product reveal or one clear action. Ten seconds leaves room for a camera move plus an action, or two or three beats in a row. Grok has no other lengths on Kensa; if you need longer clips, see the comparison further down.

Resolution: 480p or 720p

480p is fine for drafts and for checking whether a prompt works. Use 720p for the version you publish. 1080p is not available for Grok on Kensa.

Aspect Ratios

Pick the ratio before you generate. Cropping a 16:9 clip to 9:16 afterwards throws away most of the frame. In image-to-video, the clip follows the shape of the image you upload.

Text-to-Video and Image-to-Video

Both modes cost the same. Use the Text to Video or Image to Video tool, switch to Advanced, and pick Grok Image Video in the model list.

Pricing on Kensa

Credits per Clip

The dollar figures are the credit cost multiplied by each monthly plan's price per credit.

Clips per Month

New accounts that sign up with Google get 15 free credits, valid for 3 days. That is enough for three 480p 6-second Grok clips, or one 720p 10-second clip. Accounts created with email do not get free credits. If a generation fails, the credits held for it go back to your balance.

How Grok Compares on Price

Grok and Veo 3.1 charge a fixed price per clip. Seedance and Kling charge per second, so a longer clip costs proportionally more.

Current plans and credit packs: Kensa Pricing

How to Make a Grok Video on Kensa

1. Sign in. Sign up with Google to receive the 15 free credits.
2. Open a generator. Use Text to Video for a prompt-only clip or Image to Video to animate a picture. Click Advanced: choose model manually below the presets, then select Grok Image Video in the model list.
3. Write your prompt. For image-to-video, upload the image first, then describe the motion. The tips below help.
4. Choose length, resolution and aspect ratio. The credit cost shown next to the Generate button updates as you change them.
5. Generate. When the clip is ready you can preview and download it. It is also saved to My Creations in your account.

A cheap way to work: find a prompt you like at 480p and 6 seconds (5 credits a try), then generate the final version at 720p.

Prompt Tips for Grok Image Video

The prompt is the only style control Grok has on Kensa, so it has to carry the subject, the action, the camera and the look.

1. Start with the subject and the action. "A golden retriever in sunglasses rides a skateboard down a sunny boardwalk" gives the model far more to work with than "a dog".
2. Keep to one main action. Six seconds is short. One clear motion, such as a turn, a pour or a walk towards the camera, usually works better than a list of events.
3. Say where the camera is and how it moves. "Close-up", "wide shot", "slow push-in", "tracking shot from the side", "static camera".
4. Describe the light and the style in words. With no presets, the look comes from your wording: "golden-hour light", "neon at night", "soft studio light", "claymation", "hand-drawn anime", "35 mm film grain", "clean product photography".
5. For image-to-video, describe the motion, not the picture. The model already sees your image. Say what should move and how: "steam rises from the cup and the camera slowly pushes in". Ask for changes the image can plausibly support.
6. Crop the image to the shape you want. In image-to-video, the clip follows the shape of your image, so crop it to the ratio you want before you upload it.

Example Prompts

• Text-to-video, 9:16, 6 seconds: "A coffee cup fills with swirling galaxy-colored liquid, sparkles drift upward, bright pastel background, close-up, slow push-in"
• Text-to-video, 16:9, 10 seconds: "A lone figure walks through a neon-lit alley in the rain at night, reflections on wet pavement, tracking shot from behind, high contrast, cinematic"
• Image-to-video, product photo: "The bottle turns slowly on the spot, soft studio light glides across the glass, clean white background, static camera"
• Image-to-video, pet photo: "The dog tilts its head and wags its tail, a light breeze moves its fur, shallow depth of field"

These are starting points. Results vary from run to run, so expect to adjust the wording.

Grok Image Video vs Other Models on Kensa

When to Choose Grok Image Video

• You want the lowest price per clip, for example to test many prompt ideas before committing to a longer or sharper clip
• You need short clips in volume: 6-second hooks, teasers and social posts
• You want to animate a photo quickly without paying per second
• You don't need the model to make the sound, because you will add music or a voiceover in your editor anyway

When to Choose Another Model

• You need sound in the clip: Seedance 2.0 generates audio at no extra cost, and every Veo 3.1 clip includes audio in its flat 13 credits. Seedance 1.5 Pro can generate audio too.
• You need more than 10 seconds: Seedance 2.0 goes up to 15 seconds and Seedance 1.5 Pro up to 12.
• You need 1080p: Seedance 1.5 Pro, on a paid plan.
• You need to fix the first and last frame, or keep a subject consistent: Seedance 2.0 or Veo 3.1, both of which also work with reference images on the Reference to Video tool.
• You need an ultrawide 21:9 frame: Seedance 2.0 or Seedance 1.5 Pro.

See every model side by side: Kensa Models

Use Cases

Prompt Testing and Drafts

At 5 credits for a 480p 6-second clip, Grok is a low-cost way to check whether an idea works on screen: framing, action, camera move. Once a prompt works, you can re-run it at 720p, take the idea to Seedance 2.0 or Veo 3.1 when you need generated sound, or to Seedance 2.0 when you need more than 10 seconds.

Short Social Clips

A 6-second 9:16 clip is a natural fit for a TikTok, Reels or Shorts hook. Generate a few variations of the same idea with different wording, keep the best one, and add text, music and a call to action in your editor.

Product Photos to Short Videos

If you already have product photography, image-to-video turns a still into a short clip: a slow turn, light moving across the surface, steam or liquid in motion. Each clip costs 5 to 15 credits. For more on product video, read AI Video for E-Commerce.

Batch Production on a Budget

A Pro plan's 960 monthly credits cover 192 clips at 480p and 6 seconds, or 64 at 720p and 10 seconds. That is enough to produce fresh variations every week without worrying about per-second costs.

Frequently Asked Questions

How much does Grok Image Video cost on Kensa?

A fixed price per clip: 5 credits for 480p and 6 seconds, 10 credits for 480p and 10 seconds or for 720p and 6 seconds, and 15 credits for 720p and 10 seconds.

Does Grok Image Video have style modes on Kensa?

No. Kensa doesn't offer style modes or any other presets for Grok Image Video. The look of the clip comes from your prompt, and from your image in image-to-video.

Does Grok Image Video support image-to-video?

Yes. Upload one image (JPG, PNG or WebP, up to 10 MB) and describe the motion you want. Text-to-video and image-to-video cost the same.

Does Grok Image Video generate audio?

Kensa has no audio option for Grok Image Video and doesn't list sound as one of its features. If your clip needs sound, use Seedance 2.0 or Veo 3.1, or add music and a voiceover in your editor. Our Seedance 2.0 audio guide explains how audio works on Kensa.

What is the longest Grok clip?

10 seconds. For up to 15 seconds, use Seedance 2.0. For anything longer, generate several clips and edit them together.

Can I use Grok Image Video clips commercially?

Commercial use of videos made on Kensa is included with the Pro and Ultimate plans and the Premium credit pack. See Pricing for what each plan includes.

What happens if a generation fails?

The credits held for that generation go back to your balance, so you only pay for clips that complete.

Start Generating with Grok Image Video

Grok Image Video is the quickest and cheapest way on Kensa to turn a prompt or a photo into a short clip. Use it to test ideas and make short social videos, then switch to Seedance 2.0 or Veo 3.1 when you need sound, longer clips or more control. For the full Seedance 2.0 feature set, read the Seedance 2.0 complete guide.

Try Grok Image Video on Kensa | View Pricing | Compare All Models