MiniMax H3 Eco Video Generation

Lower-cost synchronized audio-video generation from text, a starting image, or first and last frames through the PixMind API.

Lower-cost synchronized audio-video generation from text, a starting image, or first and last frames.

Provider

MiniMax

Model ID

minimax-h3-eco

Endpoint

POST /api-platform/v1/generations

Open model playground Create API key

Model notes

Accepts 4-15 second durations in one-second steps and generates synchronized audio.
480p and 720p only; multimodal reference generation is not supported on this route — use minimax-h3 instead.

Request parameters

Parameter	Type	Required	Description
`model`	string	Yes	Stable PixMind model ID. Use `minimax-h3-eco`. Allowed values: `minimax-h3-eco`
`prompt`	string	Yes	Natural-language generation or editing instructions.
`resolution`	string	No	Output video resolution. This field affects per-second pricing. Allowed values: `480p`, `720p` Default: `720p`
`duration`	integer	No	Requested clip duration in seconds. Allowed values: `4`, `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15` Default: `4`
`aspectRatio`	string	No	Requested output aspect ratio. Allowed values: `21:9`, `16:9`, `9:16`, `1:1`, `4:3`, `3:4` Default: `21:9`
`imageUrl`	string (URI)	No	Starting image for image-to-video generation.
`last_frame_url`	string (URI)	No	Optional ending frame paired with imageUrl.
`generateAudio`	boolean	No	Generate synchronized audio when supported by the selected mode. Allowed values: `true`, `false` Default: `true`

Request example

cURL

curl https://aihub-admin.aimix.pro/api-platform/v1/generations \
  -H "Authorization: Bearer $PIXMIND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "minimax-h3-eco",
  "prompt": "A continuous cinematic product reveal with synchronized studio ambience",
  "duration": 10,
  "resolution": "720p",
  "aspectRatio": "16:9",
  "generateAudio": true
}'

JavaScript

const response = await fetch("https://aihub-admin.aimix.pro/api-platform/v1/generations", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.PIXMIND_API_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "model": "minimax-h3-eco",
  "prompt": "A continuous cinematic product reveal with synchronized studio ambience",
  "duration": 10,
  "resolution": "720p",
  "aspectRatio": "16:9",
  "generateAudio": true
})
});

const task = await response.json();

Accepted task response

Generation is asynchronous. Save taskId and poll GET /api-platform/v1/tasks/{taskId} until status is ready or failed.

200 OK

{
  "code": 1000,
  "data": {
    "id": "img_44160",
    "taskId": 44160,
    "type": "video",
    "model": "minimax-h3-eco",
    "status": "processing"
  }
}

API pricing

Configuration	Price
H3 Eco from	$0.040 / second

API pricing uses the apiPlatform role and is separate from PixMind Studio credits. The accepted task response is the final pricing snapshot.