Minimax MiniMax H3 Open API | Pricing & Docs

minimax/minimax-h3-open/text-to-video

MiniMax H3 Open creates 5–15s videos from text at 480p or 768p with native stereo audio in one pass.

1. Get started

Use RunComfy's API to run minimax/minimax-h3-open/text-to-video. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/minimax/minimax-h3-open/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Warm 1970s film look, soft grain, amber neon spill. [0s-3s] wide shot of a rainy alley ramen stall, steam rising from pots under a striped awning. [3s-6s] slow push-in as the cook slides a steaming bowl onto the counter, chopsticks resting across the rim. Camera: gentle dolly-in, no cuts, no handheld shake. Audio: steady rain on canvas, soft ladle clinks, distant scooter hum, quiet room tone. No text, no subtitles, no watermark."
  }'

2. Authentication

Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/minimax/minimax-h3-open/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Warm 1970s film look, soft grain, amber neon spill. [0s-3s] wide shot of a rainy alley ramen stall, steam rising from pots under a striped awning. [3s-6s] slow push-in as the cook slides a steaming bowl onto the counter, chopsticks resting across the rim. Camera: gentle dolly-in, no cuts, no handheld shake. Audio: steady rain on canvas, soft ladle clinks, distant scooter hum, quiet room tone. No text, no subtitles, no watermark."
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id; in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

Provide a publicly reachable HTTPS URL. Ensure the host allows server-side fetches (no login/cookies required) and isn't rate-limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre-signed URLs for private assets.

5. Schema

Input schema

{
  "type": "object",
  "title": "Input schema",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Scene, motion, camera, and optional Audio: line for the soundtrack.",
      "type": "string",
      "default": "Warm 1970s film look, soft grain, amber neon spill. [0s-3s] wide shot of a rainy alley ramen stall, steam rising from pots under a striped awning. [3s-6s] slow push-in as the cook slides a steaming bowl onto the counter, chopsticks resting across the rim. Camera: gentle dolly-in, no cuts, no handheld shake. Audio: steady rain on canvas, soft ladle clinks, distant scooter hum, quiet room tone. No text, no subtitles, no watermark."
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "Aspect ratio of the generated video.",
      "type": "string",
      "enum": [
        "21:9",
        "16:9",
        "4:3",
        "1:1",
        "3:4",
        "9:16",
        "9:21"
      ],
      "default": "16:9"
    },
    "resolution": {
      "title": "Resolution",
      "description": "Output resolution. 480p is faster/cheaper; 768p is sharper.",
      "type": "string",
      "enum": [
        "480p",
        "768p"
      ],
      "default": "480p"
    },
    "duration": {
      "title": "Duration",
      "description": "Length of the generated video in seconds (5–15).",
      "type": "integer",
      "enum": [
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15
      ],
      "default": 5
    },
    "seed": {
      "title": "Seed",
      "description": "Fixed seed for reproducible results. Use -1 for a random seed.",
      "type": "integer",
      "default": -1
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}

RunComfy

RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.

1. Get started

Use RunComfy's API to run minimax/minimax-h3-open/text-to-video. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/minimax/minimax-h3-open/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Warm 1970s film look, soft grain, amber neon spill. [0s-3s] wide shot of a rainy alley ramen stall, steam rising from pots under a striped awning. [3s-6s] slow push-in as the cook slides a steaming bowl onto the counter, chopsticks resting across the rim. Camera: gentle dolly-in, no cuts, no handheld shake. Audio: steady rain on canvas, soft ladle clinks, distant scooter hum, quiet room tone. No text, no subtitles, no watermark."
  }'

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/minimax/minimax-h3-open/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Warm 1970s film look, soft grain, amber neon spill. [0s-3s] wide shot of a rainy alley ramen stall, steam rising from pots under a striped awning. [3s-6s] slow push-in as the cook slides a steaming bowl onto the counter, chopsticks resting across the rim. Camera: gentle dolly-in, no cuts, no handheld shake. Audio: steady rain on canvas, soft ladle clinks, distant scooter hum, quiet room tone. No text, no subtitles, no watermark."
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id; in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

5. Schema

Input schema

{
  "type": "object",
  "title": "Input schema",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Scene, motion, camera, and optional Audio: line for the soundtrack.",
      "type": "string",
      "default": "Warm 1970s film look, soft grain, amber neon spill. [0s-3s] wide shot of a rainy alley ramen stall, steam rising from pots under a striped awning. [3s-6s] slow push-in as the cook slides a steaming bowl onto the counter, chopsticks resting across the rim. Camera: gentle dolly-in, no cuts, no handheld shake. Audio: steady rain on canvas, soft ladle clinks, distant scooter hum, quiet room tone. No text, no subtitles, no watermark."
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "Aspect ratio of the generated video.",
      "type": "string",
      "enum": [
        "21:9",
        "16:9",
        "4:3",
        "1:1",
        "3:4",
        "9:16",
        "9:21"
      ],
      "default": "16:9"
    },
    "resolution": {
      "title": "Resolution",
      "description": "Output resolution. 480p is faster/cheaper; 768p is sharper.",
      "type": "string",
      "enum": [
        "480p",
        "768p"
      ],
      "default": "480p"
    },
    "duration": {
      "title": "Duration",
      "description": "Length of the generated video in seconds (5–15).",
      "type": "integer",
      "enum": [
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15
      ],
      "default": 5
    },
    "seed": {
      "title": "Seed",
      "description": "Fixed seed for reproducible results. Use -1 for a random seed.",
      "type": "integer",
      "default": -1
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}

MiniMax H3 Open creates 5–15s videos from text at 480p or 768p with native stereo audio in one pass.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

MiniMax H3 Open creates 5–15s videos from text at 480p or 768p with native stereo audio in one pass.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

MiniMax H3 Open: Text-to-Video with Audio on Models and API | RunComfy

MiniMax H3 Open creates 5–15s videos from text at 480p or 768p with native stereo audio in one pass.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema

MiniMax H3 Open: Text-to-Video with Audio on Models and API | RunComfy

MiniMax H3 Open creates 5–15s videos from text at 480p or 768p with native stereo audio in one pass.

Table of contents

1. Get started

2. Authentication

3. API reference

Submit a request

Monitor request status

Retrieve request results

Cancel a request

4. File inputs

Hosted file (URL)

5. Schema

Input schema

Output schema