Grok Imagine Video 1.5 I2V

[Core Function] Grok Imagine Video 1.5 I2V animates a single starting image into a video using the Grok Imagine 1.5 generation backbone. [Strengths] It excels at producing motion from one starting frame with the improved 1.5 model. [Best For] Highly recommended for: animating a photo or illustration when the 1.5 generation backbone is preferred. [Limitations] Do NOT use this model for text-only generation, for resolutions above 1080p, or for clips longer than 15 seconds; it requires a starting image and is limited to 480p/720p/1080p and 15s. [Routing] Use this model when the user provides one starting image and prefers the 1.5 backbone.

POST /xai/grok-imagine-video-1.5-i2v

cURL

basic

curl --request POST \
  --url https://api.modellix.ai/api/v1/xai/grok-imagine-video-1.5-i2v \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data @- <<EOF
{
  "image": "https://example.com/portrait.png",
  "prompt": "Gentle breeze moves the subject's hair"
}
EOF

200

{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-xai-i2v-002",
    "model_id": "xai/grok-imagine-video-1.5-i2v",
    "get_result": {
      "method": "GET",
      "url": "https://api.modellix.ai/api/v1/tasks/task-xai-i2v-002"
    }
  }
}

Authorizations

Authorization · string · header · required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json

xAI Grok Imagine 1.5 image-to-video request (grok-imagine-video-1.5 backbone). Animates a single starting frame; supports up to 1080p.

prompt · string · required

Motion description for the generated video

Minimum string length: 1

Example:

"The subject slowly turns toward the camera and smiles"

image · string · required

Starting frame image URL or base64 data URI

Minimum string length: 1

Example:

"https://example.com/portrait.png"

duration · integer · default: 8

Video duration in seconds

Required range: 1 <= x <= 15

Example:

8

aspect_ratio · enum<string>

Video aspect ratio

Available options: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3

Example:

"16:9"

resolution · enum<string> · default: 480p

Video resolution (1.5 backbone supports up to 1080p)

Available options: 480p, 720p, 1080p

Example:

"1080p"

Response

200

application/json

Task submitted successfully

code · integer · required

Response code, 0 indicates success

Example:

0

message · string · required

Response message

Example:

"success"

data · object · required

Detailed data about the submitted asynchronous task.

Show child attributes