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Market
File Upload API
Market
File Upload API
  1. Grok Imagine
  • Getting Started with Emix API (Important)
  • Market
  • Image Models
    • Seedream
      • Seedream4.5 - Text to Image
      • Seedream4.5 - Edit
      • Seedream5.0 Lite - Text to Image
      • Seedream5.0 Lite - Image to Image
      • Seedream5.0 Pro - Text to Image
      • Seedream5.0 Pro - Image to Image
    • Google
      • Google - Nano Banana
      • Google - Nano Banana Pro
      • Google - Nano Banana 2
      • Google - Nano Banana 2 Lite
    • Grok Imagine
      • Grok Imagine - Text to Image
      • Grok Imagine - image to image
    • GPT Image
      • GPT Image-1.5 - Text to Image
      • GPT Image-1.5 - Image to Image
      • GPT Image-2 - Text to Image
      • GPT Image 2 - Image To Image
    • Wan
      • Wan 2.7 Image
      • Wan 2.7 Image Pro
  • Video Models
    • Grok Imagine
      • Grok Imagine Text to Video
        POST
      • Grok Imagine Image to Video
        POST
      • Grok Imagine - Video Upscale
        POST
      • Grok Imagine - Video Extend
        POST
      • Grok Imagine Video 1.5 Preview
        POST
    • Kling
      • Kling 2.6 Text to Video
      • Kling 2.6 Image to Video
      • Kling AI Avatar Standard
      • Kling AI Avatar Pro
      • Kling V2.1 Master Image to Video
      • Kling V2.1 Master Text to Video
      • Kling V2.1 Pro
      • Kling V2.1 Standard
      • Kling 2.6 motion-control
      • Kling-3.0 motion-control
      • Kling 3.0
    • Bytedance
      • Bytedance Seedance 2.0
      • Bytedance Seedance 2.0 Fast
      • Bytedance Seedance 2.0 Mini
    • Veo3.1 API
      • VEO 3.1 Text to video
      • VEO 3.1 Image to video
      • VEO 3.1 Reference to vidoe
    • Wan
      • Wan 2.6 - Image to Video
      • Wan 2.6 - Text to Video
      • Wan 2.6 - Video to Video
      • Wan 2.7 - Text to Video
      • Wan 2.7 - Image to Video
      • Wan 2.7 - Video Edit
      • Wan 2.7 - Reference to Video
    • HappyHorse
      • HappyHorse-1-1 image-to-video
      • HappyHorse-1-1 text-to-video
      • HappyHorse-1-1 reference-to-video
    • Gemini Omni
      • Gemini Omni Video
      • Gemini Omni Audio
      • Gemini Omni Character
  • Chat Models
    • Claude
      • Claude Code + emix.ai Integration Guide
      • Claude Sonnet 5
    • Gemini
      • Gemini 3.5 Flash (openai)
    • Grok
      • Grok 4.5
      • Grok 4.3
  • Get Task Details
    GET
  1. Grok Imagine

Grok Imagine - Video Extend

POST
/api/v1/client/tasks

Task ID Source#

The task_id parameter should be obtained from the previously generated video task. You can create videos using the following approach:
Generate videos First
Use the text-to-video model to create videos in order to obtain scalable task IDs
How to obtain the task ID:
1.
Use the Text to Video API to generate a video
2.
Extract the taskId from the API response
3.
Use this taskId as the task_id parameter in the enlargement request
Information
Only videos generated by Emix AI models can be extended. External videos are not supported.

Query Task Status#

After submitting the extended task, use the unified query endpoint to check the progress and obtain the results:
Get Task Details
Learn how to query task status and retrieve generation results.
Pro Tip
For production use, we recommend using the callBackUrl parameter to receive automatic notifications when upscaling completes, rather than polling the status endpoint.

Related Resources#

Market Overview
Explore all available models
Common API
Check credits and account usage

Request

Authorization
Bearer Token
Provide your bearer token in the
Authorization
header when making requests to protected resources.
Example:
Authorization: Bearer ********************
or
Body Params application/jsonRequired

Examples

Responses

🟒200
application/json
Request successful
Bodyapplication/json

Request Request Example
Shell
JavaScript
Java
Swift
curl --location 'https://api.emix.ai/api/v1/client/tasks' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
  "model": "grok-imagine/extend",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "task_id": "task_grok_12345678",
    "prompt": "The camera slowly pans forward, showing the protagonist walking deeper into the forest, with the sunlight filtering through the leaves and casting dappled shadows.",
    "extend_at": 2,
    "extend_times": "6"
  }
}'
Response Response Example
{
    "code": 200,
    "msg": "success",
    "data": {
        "taskId": "281e5b0*********************f39b9"
    }
}
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Grok Imagine - Video Upscale
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Grok Imagine Video 1.5 Preview
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