# Grok Imagine

Grok Imagine is xAI's video model. In Sloosh it turns a prompt, a start image or up to 7 reference images into a clip of up to 10 seconds with sound, at 480p or 720p, in seven aspect ratios. It is built to keep a person, product or outfit from your reference images without fixing the first frame.

Web page: https://sloosh.ai/models/grok-imagine

[Use Grok Imagine](https://sloosh.ai/studio/video?video-model=grok-imagine)

## Key facts in Sloosh

|   |   |
| --- | --- |
| Made by | xAI |
| Makes | video (with sound: always) |
| Inputs | text, start frame (optional), no end frame, up to 7 reference images. A start frame and reference images can't be used together. |
| Length | 4, 6, 8 or 10 seconds |
| Resolution | 480p, 720p |
| Aspect ratios | 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 |
| Prompt limit | 5,000 characters |

## Best for

- Clips that keep one product, outfit or person consistent from reference images. xAI documents reference-to-video with up to 7 images on the classic model, and says it does not lock the first frame the way image-to-video does ([xAI](https://docs.x.ai/developers/model-capabilities/video/reference-to-video)).
- Square, portrait and 3:2 or 2:3 clips for social feeds, from the seven ratios Sloosh offers.
- Short social clips with sound in one pass: xAI calls Grok Imagine "our most powerful video-audio generative model yet" ([xAI](https://x.ai/news/grok-imagine-api)).
- UGC-style product clips.

## How to use Grok Imagine in Sloosh

1. Open [Video in Studio](https://sloosh.ai/studio/video?video-model=grok-imagine) with Grok Imagine picked in the model chip.
2. Add either up to 7 reference images, or one start image. Not both.
3. Pick the length (4, 6, 8 or 10 seconds), the resolution and the aspect ratio.
4. Write the prompt: subject and action, camera move, what to keep from the references, then a "Sound:" line.
5. Press Generate. The exact price shows on the button before you generate.

## Grok Imagine prompting tips

- Give each reference image one role and a fixed place in the scene, and keep the cast small and props static when you use many references ([xAI](https://docs.x.ai/developers/model-capabilities/video/reference-to-video)).
- Refer to references by their position in the list so the model knows which subject is which ([xAI](https://docs.x.ai/developers/model-capabilities/video/reference-to-video)). In Sloosh, "the sneaker from Image 1" works ([Sloosh docs](https://sloosh.ai/docs/grok-imagine.md)).
- Name the camera move. xAI lists zoom, dolly, tilt and pan among the motions it follows ([xAI](https://x.ai/news/grok-imagine-api)).
- Say what to keep from the reference and end with a "Sound:" line that describes sounds by material and place ([Sloosh docs](https://sloosh.ai/docs/grok-imagine.md)).
- One clear action per clip ([Sloosh docs](https://sloosh.ai/docs/grok-imagine.md)).

## Grok Imagine example prompts

**Prompt 1**

```text
The sneaker from Image 1 sits on a sunlit wooden bench in a park, then a runner's hand picks it up and laces it. Keep the sneaker's white mesh, sage-green panels and white sole exactly as in the reference. Slow push-in at low height, warm morning light. Sound: birdsong, laces pulled tight.
```

**Prompt 2**

```text
The woman from Image 1 wears the denim jacket from Image 2 and walks toward the camera down a busy city sidewalk at golden hour. Tracking shot moving backward with her. Keep the jacket's colour and stitching as in the reference. Sound: traffic hum, footsteps, a light breeze.
```

**Prompt 3**

```text
The ceramic mug from Image 1 sits on a kitchen counter as coffee is poured into it, steam rising. Square frame, slow orbit, soft window light. Sound: the pour, a spoon clinking against the mug.
```

## How it compares in Sloosh

|   | Grok Imagine | Grok Imagine 1.5 | Happy Horse 1.1 |
| --- | --- | --- | --- |
| Length | up to 10 s | up to 15 s | 3 to 15 s |
| Reference images | 7 | 14 | 9 |
| Frames | start only, not with references | start and end, usable with references | start only, not with references |
| Resolution | 480p, 720p | 480p, 720p, 1080p | 720p, 1080p |
| Sound | always | always | always |

## Where else it runs

- xAI's Grok Imagine API ([xAI](https://x.ai/news/grok-imagine-api), 28 Jan 2026).

## Frequently asked questions

### What is Grok Imagine?

xAI's video and audio generation model. In Sloosh it makes clips of up to 10 seconds with sound from text, a start image or up to 7 reference images.

### How many reference images does Grok Imagine take?

Up to 7 in Sloosh, the same number xAI documents for the classic model ([xAI](https://docs.x.ai/developers/model-capabilities/video/reference-to-video)).

### Can Grok Imagine use a start and end frame?

It takes an optional start frame but no end frame, and in Sloosh a start frame can't be combined with reference images. xAI says the classic model rejects `last_frame` ([xAI](https://docs.x.ai/developers/model-capabilities/video/generation)). For start and end frames, use Grok Imagine 1.5.

### How long can a Grok Imagine video be?

4, 6, 8 or 10 seconds in Sloosh. xAI caps reference-to-video on the classic model at 10 seconds ([xAI](https://docs.x.ai/developers/model-capabilities/video/generation)).

### Does Grok Imagine make sound?

Yes, every clip has sound in Sloosh.

### Is Grok Imagine free?

Not for free: Sloosh has no free plan, so each Grok Imagine clip is paid from your plan. Any current offer shows on [pricing](https://sloosh.ai/pricing), and Studio shows the exact price before you generate. Your first Sloosh workspace gets 20 starter credits once, so you can try it before you pay.

### How do I use Grok Imagine?

Open Video in Studio, pick Grok Imagine, add references or a start image, write the prompt with a Sound line and press Generate.

### Is Grok Imagine the same as Grok Imagine 1.5?

No. Grok Imagine in Sloosh is xAI's original Grok Imagine video model; 1.5 is a separate entry with 1080p, 15-second clips and up to 14 references.

## Related

- Models: [Grok Imagine 1.5](https://sloosh.ai/models/grok-imagine-1.5), [Happy Horse 1.1](https://sloosh.ai/models/happy-horse-1.1), [Kling O3](https://sloosh.ai/models/kling-o3)
- Spaces: [UGC Selfie Video Ad](https://sloosh.ai/spaces/ugc-selfie-video-ad), [Product in hand ugc](https://sloosh.ai/spaces/product-in-hand-ugc)
- Docs: [Grok Imagine](https://sloosh.ai/docs/grok-imagine.md)
- Answers: [How do I make UGC-style product-in-hand videos with AI?](https://geo.sloosh.ai/posts/how-do-i-make-ugc-style-product-in-hand-videos-with-ai)

## Sources

- [xAI: Reference to video](https://docs.x.ai/developers/model-capabilities/video/reference-to-video)
- [xAI: Video generation](https://docs.x.ai/developers/model-capabilities/video/generation)
- [xAI: Grok Imagine API](https://x.ai/news/grok-imagine-api)
- [Sloosh docs: Grok Imagine](https://sloosh.ai/docs/grok-imagine)