MiniMax H3 Text-to-Video

This page is generated from the upstream official OpenAPI documentation. Endpoints, parameters and examples match the official docs; brand and API domain are replaced with ModelFold.

Endpoint

POST /jobs/createTask

Full URL: https://ai.modelfold.online/v1/jobs/createTask

Authentication: every request must include the Authorization: Bearer <API_KEY> header.

Output videos include a stereo audio track generated with the video; dialogue, music and sound effects can be described in the prompt. Audio cannot be turned off.

Query Task Status

After submitting a task, you can check its progress and retrieve the result through the unified query endpoint:

• Get Task Details — Learn how to check task status and retrieve the generated result

TIP

In production, we recommend using the callBackUrl parameter to receive an automatic notification when generation is complete instead of polling the status endpoint.

Related Resources

• Market Overview — Browse all available models
• Common API — View account credits and usage

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
model	string	Yes	The name of the model used for the generation task. Used for MiniMax H3 text-to-video. Default："minimax-h3/text-to-video"。 Allowed values：minimax-h3/text-to-video。 示例：minimax-h3/text-to-video。
callBackUrl	string	No	The callback URL after the task is completed.
input	object	Yes	—
input.prompt	string	Yes	Video generation prompt, length is between 1 and 7000 characters. 示例：A cat walking slowly on the beach at sunset, cinematic shot, waves gently lapping the shore。
input.aspect_ratio	string	Yes	Video aspect ratio. Required for text-to-video, adaptive is not supported. Allowed values：21:9 / 16:9 / 4:3 / 1:1 / 3:4 / 9:16。 示例：21:9。
input.duration	integer	Yes	Generated video duration, supports integer values from 4 to 15 seconds. Default：6。 Allowed values：4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15。 示例：6。
input.resolution	string	No	Video resolution. Default："2K"。 Allowed values：768P / 2K。 示例：2K。

Request Example

curl -X POST "https://ai.modelfold.online/v1/jobs/createTask" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "minimax-h3/text-to-video",
  "callBackUrl": "https://example.com/callback",
  "input": {
    "prompt": "A cat walking slowly on the beach at sunset, cinematic shot",
    "aspect_ratio": "16:9",
    "duration": 6
  }
}'

{
  "model": "minimax-h3/text-to-video",
  "callBackUrl": "https://example.com/callback",
  "input": {
    "prompt": "A cat walking slowly on the beach at sunset, cinematic shot",
    "aspect_ratio": "16:9",
    "duration": 6
  }
}

Response

200 — success

Callback

videoTaskCompleted

Callback URL: {request.body#/callBackUrl} (the callBackUrl in the request body).

The system sends this callback when the minimax-h3/text-to-video task succeeds or fails.

Callback body parameters

参数	类型	必填	说明
code	integer	是	Unified callback code: 200 for success, 501 for failure. Allowed values：200 / 501。 示例：200。
msg	string	是	Unified callback message. Allowed values：Playground task completed successfully. / Playground task failed.。 示例：Playground task completed successfully.。
data	object	是	—
data.taskId	string	是	The unique task identifier.
data.model	string	是	The model used for the task. Allowed values：minimax-h3/text-to-video。 示例：minimax-h3/text-to-video。
data.state	string	是	Terminal task state. Allowed values：success / fail。 示例：success。
data.param	string	是	JSON string containing the submitted task parameters.
data.resultJson	string	否	JSON string containing resultUrls, firstFrameUrl, lastFrameUrl, or resultObject when successful. Present only when state is success.
data.failCode	string	否	Failure code, a numeric string such as "400" or "500". Present only when state is fail.
data.failMsg	string	否	Failure reason. Present only when state is fail.
data.costTime	integer	否	Processing time in seconds. Present on both success and failure callbacks.
data.completeTime	integer	否	Task completion timestamp.
data.createTime	integer	否	Task creation timestamp.
data.updateTime	integer	否	Use completeTime as the completion time; updateTime may equal createTime.
data.creditsConsumed	number	否	Credits consumed by the task; 0 for failed tasks.

Task completed successfully

{
  "code": 200,
  "msg": "Playground task completed successfully.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "minimax-h3/text-to-video",
    "state": "success",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"A cat walking slowly on the beach at sunset, cinematic shot\\\",\\\"aspect_ratio\\\":\\\"16:9\\\",\\\"duration\\\":6}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"minimax-h3/text-to-video\"}",
    "resultJson": "{\"resultUrls\":[\"https://example.com/generated-video.mp4\"]}",
    "costTime": 12,
    "completeTime": 1234567890,
    "createTime": 1234560000,
    "updateTime": 1234567890,
    "creditsConsumed": 1.23
  }
}

Task failed

{
  "code": 501,
  "msg": "Playground task failed.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "minimax-h3/text-to-video",
    "state": "fail",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"A cat walking slowly on the beach at sunset, cinematic shot\\\",\\\"aspect_ratio\\\":\\\"16:9\\\",\\\"duration\\\":6}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"minimax-h3/text-to-video\"}",
    "failCode": "400",
    "failMsg": "<error detail>",
    "costTime": 12,
    "creditsConsumed": 0
  }
}