MiniMax H3 Max API

MiniMax H3 Max — the flat-priced H3 sibling. Text-to-video and image-to-video at 768p or 480p (same 2 credits/sec either way), 5-15s, native synced audio. No reference inputs. Integrate this model via REST with endpoint docs, parameters, and code examples.

Prompting guide Compare video models Use cases

Video Generation

Img2Vid

Audio

Credit Cost

2 credits/sec

Type

Video

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See Usage

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API Endpoint

POST

/api/v1/models/minimax-h3-max/run

Test This Model

Run a real request through the API pipeline and inspect the exact input and output your integration will handle. Uses your credits like any API call; failed runs are refunded automatically.

LLM.txt

AI-Ready

For AI assistants

Copy this model's documentation into Claude, GPT, or any AI for instant integration help.

/llm/minimax-h3-max.txt

OpenAPI Spec

Swagger compatible

Import into Postman, Swagger UI, or generate client SDKs in any language.

/api/openapi

Parameters

Input parameters accepted by this model

Parameter	Type	Description	Default
`prompt` required	string	Text description of the video, motion, and sound to generate	-
`image_url`	url	First-frame image. Switches to image-to-video mode.	-
`end_image_url`	url	Last-frame image. Requires image_url.	-
`aspect_ratio`	enum	Output aspect ratio. Ignored in image-to-video mode — the start frame sets the aspect. `16:94:31:19:163:4`+1 more	`16:9`
`resolution`	enum	Output tier: 768p or 480p. Same flat price either way. Honored in every mode, including image-to-video. `768p480p`	`768p`
`duration`	integer	Video duration in seconds (5-15) min: 5 \| max: 15	`5`
`seed`	integer	Random seed for reproducibility	-

Supported Aspect Ratios

16:9

4:3

1:1

9:16

3:4

21:9

Code Examples

Copy and paste to get started

bash

curl -X POST "https://pixeldojo.ai/api/v1/models/minimax-h3-max/run" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A lighthouse keeper climbs the spiral stairs at dawn, waves crashing below",
    "duration": 5,
    "aspect_ratio": "16:9"
  }'

Response Format

Submit Response (202 Accepted)

json

{
  "jobId": "job_abc123...",
  "status": "pending",
  "statusUrl": "https://pixeldojo.ai/api/v1/jobs/job_abc123...",
  "creditCost": 10,
  "creditsRemaining": 95,
  "expiresAt": "2026-09-16T09:34:29Z"
}

Completed Response

json

{
  "jobId": "job_abc123...",
  "status": "completed",
  "output": {
    "video": "https://temp.pixeldojo.ai/pixeldojotemp/1705930123-456789.mp4"
  },
  "creditCost": 10,
  "expiresAt": "2026-09-16T09:34:29Z"
}

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