MiniMax H3

Use minimax-h3 to create video output. This page contains the complete request needed for this model.

Model facts

Property	Value
Model ID	`minimax-h3`
Endpoint	`POST /api/v1/generation/create`
Output	Video
Modes	text-to-video, image-to-video, audio reference
Pricing	View current pricing

Minimal request

curl -X POST https://api.apihubs.ru/api/v1/generation/create \
  -H "Authorization: Bearer $API_STOCK_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "minimax-h3",
  "input": {
    "prompt": "A cinematic scene with soft natural light"
  }
}'

The create response contains a task ID:

{
  "code": 200,
  "data": {
    "taskId": "019ca881-9503-7270-a560-f00fc2b15785",
    "status": "not_started",
    "createdAt": "2026-08-22T12:00:00.000Z"
  }
}

Parameters

Parameters belong inside the top-level input object. Unknown fields are rejected.

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	—	Describe the scene, motion and audio. Refer to supplied images and audio in the prompt.
`aspectRatio`	“16:9” \| “9:16”	No	`"16:9"`	Video aspect ratio
`imageUrls`	string[]	No	—	Reference image URLs (up to 9). The first 5 are free; each additional image is billed separately per request.
`audioUrls`	string[]	No	—	Reference audio URLs (up to 3), free of additional charge.
`resolution`	“480p” \| “768p” \| “1080p”	No	`"480p"`	Output resolution; 1080p supports at most 10 seconds.
`duration`	integer	No	`5`	Output duration in seconds (1–15; at most 10 at 1080p). min 1, max 15
`seed`	number	No	—	Random seed

Modes

Minimal generation

{
  "model": "minimax-h3",
  "input": {
    "prompt": "A cinematic scene with soft natural light"
  }
}

With image urls

{
  "model": "minimax-h3",
  "input": {
    "prompt": "A cinematic scene with soft natural light",
    "imageUrls": [
      "https://example.com/input.jpg"
    ]
  }
}

With audio urls

{
  "model": "minimax-h3",
  "input": {
    "prompt": "A cinematic scene with soft natural light",
    "audioUrls": [
      "https://example.com/input.mp3"
    ]
  }
}

Constraints

aspectRatio: allowed: 16:9, 9:16.
resolution: allowed: 480p, 768p, 1080p.
duration: minimum 1; maximum 10 at 1080p; maximum 15 at 480p or 768p.

Invalid types, unsupported enum values, out-of-range numbers, and missing required fields return HTTP 400 with error.code: "invalid_input". Correct the request rather than retrying it unchanged.

Result

Poll the task or provide a top-level webhook URL in the create request:

curl https://api.apihubs.ru/api/v1/task/status/$TASK_ID \
  -H "Authorization: Bearer $API_STOCK_KEY"

A successful media task returns one or more files:

{
  "code": 200,
  "data": {
    "taskId": "019ca881-9503-7270-a560-f00fc2b15785",
    "status": "finished",
    "files": [
      {
        "fileUrl": "https://storage.api-stock.com/result.mp4",
        "fileType": "video"
      }
    ],
    "createdTime": "2026-08-22T12:00:00.000Z"
  }
}

See Tasks and webhooks for terminal statuses, retries and webhook delivery.