xai/grok-imagine-video/reference-to-video
Grok Imagine Video is xAI's image-to-video AI model. Bring static images to life with fluid animation, consistent character motion, and professional-grade video output.
PNG, JPEG, WebP, or GIF · 20 MiB maximum each
Example output — click Run to generate your own
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OpenAI-compatible endpoint with unified authentication and usage tracking.
https://api.sandbase.ai/v1/runxai/grok-imagine-video/reference-to-videoInput Schema
5 parameters · 1 required · 4 optional
| Parameter | Type | Required | Description |
|---|---|---|---|
prompt | string | Required | Text prompt describing the video to generate. Use @Image1, @Image2, etc. to reference specific images from reference_image_urls in order. · Max length: 4096 |
duration | integer | Optional | Video duration in seconds. · Min: 1 · Max: 10 · Default: 8 |
resolution | string | Optional | Resolution of the output video. · Options: 480p, 720p · Default: "480p" 480p720p |
aspect_ratio | string | Optional | The aspect ratio of the generated image. · Options: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16 21:916:93:24:35:41:14:53:42:39:16 |
reference_image_urls | string[] | Optional | One or more reference image URLs to guide the video generation as style and content references. Reference in prompt as @Image1, @Image2, etc. Maximum 7 images. |
Output Schema
| Field | Type | Description |
|---|---|---|
id | string | Unique identifier for the generation task |
status | string | Task status: pending, running, completed, failed, timeout |
model | string | Model used for the generation |
outputs | array | Array of output items |
outputs[].url | string | URL of the generated artifact |
outputs[].content_type | string | MIME type (e.g. image/png, video/mp4) |
error | object | null | Error details if failed, null on success |
error.type | string | Machine-readable error type code |
error.message | string | Human-readable error description |
Async Workflow
This model uses asynchronous execution. Submit a request and poll for the result.
- Submit — POST to /v1/run, receive an
id - Poll — GET /v1/run/{id} until status is
completed,failed, ortimeout - Retrieve — Read
outputsfrom the completed response
Code Examples
Ready-to-run snippets
# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "xai/grok-imagine-video/reference-to-video",
"prompt": "A @Image1 running through a sunlit meadow, cinematic slow motion",
"duration": 8,
"resolution": "480p",
"reference_image_urls": [
"https://static.sandbase.ai/examples/xai/grok-imagine-video/reference-to-video/input_reference_image_urls_0.png"
]
}'
# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
-H "Authorization: Bearer YOUR_API_KEY"API README
Grok Imagine Video Reference To Video
Grok Imagine Video Reference To Video is a specialized SandBase endpoint built to compose video using multiple images as named visual references. It is most useful when teams need multi-reference continuity for characters, products, wardrobe, and environments, with the route’s inputs defining a repeatable production contract instead of leaving critical delivery choices to an ad-hoc manual workflow.
Use this exact route when its input mode matches the creative asset already in hand: describe the visual or spoken result clearly, set only the controls that support the intended delivery, and keep the subject, action, environment, camera or performance direction internally consistent. The result is returned asynchronously as a downloadable media URL suitable for review, automation, or downstream finishing.
Highlights
- Ordered @Image references. Address supplied visuals as
@Image1,@Image2, and onward so the prompt assigns each person, object, or setting a precise role. - Seven-image context window. Coordinate up to seven visual anchors when one shot must combine several characters, products, wardrobe cues, or environmental references.
- Compact reference-led clips. A 1–10 second range is tuned for focused actions, reveals, and social-ready beats guided by the selected images.
- 480p and 720p paths. Choose the resolution tier alongside ten aspect ratios to balance economical iteration with sharper delivery output.
Pricing
Each request includes a $0.0020 fixed charge plus the duration-based video rate.
| Duration | Resolution | Price |
|---|---|---|
| 1 sec | 480p | $0.0520 |
| 1 sec | 720p | $0.0720 |
| 2 sec | 480p | $0.1020 |
| 2 sec | 720p | $0.1420 |
| 3 sec | 480p | $0.1520 |
| 3 sec | 720p | $0.2120 |
| 4 sec | 480p | $0.2020 |
| 4 sec | 720p | $0.2820 |
| 5 sec | 480p | $0.2520 |
| 5 sec | 720p | $0.3520 |
| 6 sec | 480p | $0.3020 |
| 6 sec | 720p | $0.4220 |
| 7 sec | 480p | $0.3520 |
| 7 sec | 720p | $0.4920 |
| 8 sec | 480p | $0.4020 |
| 8 sec | 720p | $0.5620 |
| 9 sec | 480p | $0.4520 |
| 9 sec | 720p | $0.6320 |
| 10 sec | 480p | $0.5020 |
| 10 sec | 720p | $0.7020 |
When to Use
| Scenario | Why this route fits |
|---|---|
| Concept development | Choose Grok Imagine Video Reference To Video when its reference to video workflow matches the starting material and you need several clearly directed variations. |
| Production iteration | Use explicit duration, resolution, ratio, seed, or quality controls to compare versions without changing the core creative brief. |
| Channel adaptation | Generate directly in the landscape, square, portrait, or vertical format required by the destination whenever that control is available. |
| Automated pipelines | Integrate the asynchronous media URL into review queues, asset libraries, publishing tools, or a later finishing stage. |
| Alternative route | Pick a related text-, image-, reference-, edit-, or turbo route when the available source media or required degree of control is different. |
Prompt Guide
Lead with the main subject or source asset, then describe the intended action or transformation, environment, composition, camera or vocal delivery, lighting and mood. Keep instructions concrete and compatible; use the route’s explicit fields for duration, resolution, ratio, quality, voice, or reproducibility instead of burying those settings in prose.
{
"prompt": "A cinematic product reveal with deliberate subject motion, coherent lighting, and a slow camera push.",
"duration": 8,
"resolution": "480p",
"aspect_ratio": "21:9",
"reference_image_urls": [
"https://example.com/reference-1.jpg"
]
}
Technical Specs
| Property | Details |
|---|---|
| Model ID | xai/grok-imagine-video/reference-to-video |
| Required inputs | prompt |
| Execution | Asynchronous; poll the returned generation ID |
| Output | Downloadable media URL |
prompt | string; required |
duration | integer; optional; range: 1–10; default: 8 |
resolution | string; optional; choices: 480p, 720p; default: 480p |
aspect_ratio | string; optional; choices: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16 |
reference_image_urls | array; optional |
Related Models
| Model | Best for |
|---|---|
xai/grok-tts | Alternative grok tts workflow |
xai/grok-imagine-video/text-to-video | Alternative text to video workflow |
xai/grok-imagine-video/extend | Alternative extend workflow |
xai/grok-imagine-video/image-to-video | Alternative image to video workflow |

