MiniMax-H3 API

Use the exact MiniMax-H3 model ID through Modelflare asynchronous video routing.

Use the exact model ID MiniMax-H3. The model field must match this page exactly.

Authentication and endpoint

Use a Modelflare API key with https://modelflare.dev/v1. The gateway entry point is POST /v1/videos.

Authorization: Bearer YOUR_MODELFLARE_API_KEY

Create a task

curl https://modelflare.dev/v1/videos \
  -H "Authorization: Bearer YOUR_MODELFLARE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "MiniMax-H3",
    "content": [{"type": "text", "text": "A white cat runs through a neon-lit street in the rain, cinematic tracking shot"}],
    "resolution": "2K", "duration": 5, "ratio": "16:9"
  }'

Poll and download

Save the task ID. Poll GET /v1/videos/{task_id} and download with GET /v1/videos/{task_id}/content. Result URLs may expire, so transfer the file promptly.

curl https://modelflare.dev/v1/videos/TASK_ID \
  -H "Authorization: Bearer YOUR_MODELFLARE_API_KEY"

Request notes

MiniMax-H3 uses content[] with resolution, duration, and ratio controlling output.

Request parameters

MiniMax-H3 uses a multimodal content[] array. Poll the MiniMax query path after task creation; first/last-frame and reference_* roles are distinct workflows.

Field	Required	Notes
model	Yes	MiniMax-H3
content[]	Yes	At least one text item; may include image_url, video_url, or audio_url
resolution	Yes	768P / 2K
duration	Yes	4–15 seconds
ratio	Conditional	21:9 / 16:9 / 4:3 / 1:1 / 3:4 / 9:16 / adaptive
aigc_watermark	No	Whether to add a watermark
callback_url	No	Task status callback URL

Input and output limits

Output is 768P or 2K for 4–15 seconds. Text-only requests need a concrete ratio; do not mix first_frame/last_frame roles with reference_* roles.

Supported scope

This page covers Modelflare model generation and editing calls. Search or map enrichment, voice management, and element-library management are resource APIs outside this public model-call surface and are not required request fields.

Pricing and billing

This model uses per-second video billing. See the model pricing page for the current customer price, reference list price, and complete specification.

This page documents Modelflare’s public interface; the fields and limits shown here are the current contract.