MiniMax H3 - MixRoute API

MiniMax H3 is MiniMax’s general-purpose multimodal video generation model available through MixRoute. Use the exact model ID MiniMax-H3 with the video generation endpoint.

See MiniMax H3 API for the complete field reference. On MixRoute, put H3 controls in metadata.content, metadata.resolution, metadata.duration, and metadata.ratio.

Keep model and prompt at the root. Put H3 content and output controls in metadata, including content, resolution, duration, and ratio. Keep the prompt consistent with the text content.

Examples

Set MIXROUTE_API_KEY to your MixRoute key. Replace reference URLs or Base64 placeholders with your own accessible media. Each request creates a billable generation task when accepted.

Text to video

curl --location "https://api.mixroute.ai/v1/video/generations" \
  --header "Authorization: Bearer $MIXROUTE_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "MiniMax-H3",
  "prompt": "A professor is teaching a class in a classroom.",
  "metadata": {
    "content": [
      {
        "type": "text",
        "text": "A professor is teaching a class in a classroom."
      }
    ],
    "resolution": "768P",
    "duration": 4,
    "ratio": "9:16"
  }
}'

Python

import json
import os
import requests

payload = json.loads(r'''
{
  "model": "MiniMax-H3",
  "prompt": "A professor is teaching a class in a classroom.",
  "metadata": {
    "content": [
      {
        "type": "text",
        "text": "A professor is teaching a class in a classroom."
      }
    ],
    "resolution": "768P",
    "duration": 4,
    "ratio": "9:16"
  }
}
''')
response = requests.post(
    "https://api.mixroute.ai/v1/video/generations",
    headers={"Authorization": "Bearer " + os.environ["MIXROUTE_API_KEY"]},
    json=payload,
    timeout=60,
)
response.raise_for_status()
print(response.json())

Task Results

Use the returned MixRoute task ID with Query Video Task. The gateway response is not necessarily the vendor’s native response envelope.