Model reference
Grok Imagine Video 1.5
xAI video model for 1 to 15-second clips from text prompts or up to seven reference images per run.
| Property | Value |
|---|---|
modelSlug | grok-imagine-video-1-5 |
| Kind | Video |
| Maker | xAI |
Copies per request (variations) | 1 to 5 |
| How the cost is counted | per second of output (from duration), at a rate that depends on resolution |
| Over MCP | yes, with the generate tool |
Credit amounts are left out because they change. The lowest price is creditCost on GET /v1/models, and POST /v1/jobs answers with the exact creditCost of a request.
input fields
Send the fields below inside the input object. A field you leave out takes its Default. Unknown field names are dropped without an error, so check the spelling if a setting seems to have no effect.
| Field | Type | Required | Default | Rules |
|---|---|---|---|---|
prompt | string | yes | – | Up to 4,096 characters |
reference_images | string[] (image upload ids) | – | – | Reference images. Up to 7 files |
aspect_ratio | string (one of) | – | auto | auto, 1:1, 16:9, 9:16, 3:2, 2:3 |
resolution | string (one of) | – | 480p | 480p, 720p |
duration | integer | – | 8 | 1 to 15 |
Rules by setting
This model runs a different version depending on what you send. The rules below are checked before any credits move; a request that breaks one is refused with 400 and a message naming the field.
Every request
reference_images: up to 7 files; at most 20 MB per file.
Example request
{
"modelSlug": "grok-imagine-video-1-5",
"input": {
"prompt": "The camera circles slowly around a steaming cup of coffee on a wooden table"
}
}