Use MiniMax H3 through Rivya Public API v1 with model id minimax-h3, supported inputs, parameters, Files API rules, credits, and response examples.

Available via APIText or URL ready; reference modes use Files APIVideo

API model id

minimax-h3

Inputs

text, file

Files API

Required for reference modes

Base credits

per_input_and_output_second · 768P=16 · 2K=26 · additional_image_after_five=8 · ⌈total⌉

Capability

Video

Billing

METERED

Prompt limit

7000 characters

Request contract

Send the model id at the top level. Model-specific controls belong in params.

Key	Type	Required	Default	Description
model	string	Yes	minimax-h3	Use the minimax-h3 API model id.
prompt	string	Yes	-	Maximum 7000 characters for this model.
params	object	No	-	Model-specific parameter object. Use the rows below for allowed keys.
client_request_id	string	No	-	Optional client-side id for tracing requests in your system.

Model parameters

Key	Type	Required	Default	Range	Options	Description
seedance_scene	select	No	text	-	text, frames, reference	Choose the MiniMax input path before uploading; text, frames, and references have separate requirements.
resolution	select	No	2K	-	768P, 2K	The selected tier sets the per-second rate applied to output plus verified input-video time.
aspect_ratio	select	No	16:9	-	adaptive, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16	Adaptive is available in reference mode, not text mode. Frame mode uses its image geometry instead of sending this control.
minimax_single_frame_role	select	No	first	-	first, last	Yes. With one image, choose whether it is the starting or ending frame. With two images, order them as start and then end.
duration	number	No	6	min 4 / max 15 / step 1	-	Choose a whole-number output duration from 4 through 15 seconds.

Upload policy

Upload reference files first, then place the returned URL and duration token inside params.referenceMediaItems.

Reference rule

Guide frames or multimodal references: Frames accepts 1 or 2 JPEG, PNG, or WebP images up to 30 MB each. Reference accepts up to 9 such images, 3 MP4/MOV videos up to 50 MB and 2-15 seconds each, and 3 MP3/WAV audio files up to 15 MB and 2-15 seconds each; video and audio totals are each capped at 15 seconds, all media is capped at 15 files, and audio cannot be used alone.

Max files

Accepted file kinds

image, video, audio

Duration token

Video and audio references should carry durationToken from /api/v1/files when duration verification is required.

kind	Max size	MIME types
image	30 MB	image/jpeg, image/png, image/webp
video	50 MB	video/mp4, video/quicktime
audio	15 MB	audio/mpeg, audio/wav, audio/x-wav

Minimal request

{
  "model": "minimax-h3",
  "prompt": "A cinematic product reveal with smooth camera movement",
  "params": {
    "seedance_scene": "text",
    "resolution": "2K",
    "aspect_ratio": "16:9",
    "minimax_single_frame_role": "first",
    "duration": 6
  }
}

Reference-file request

{
  "model": "minimax-h3",
  "prompt": "A cinematic product reveal with smooth camera movement",
  "params": {
    "seedance_scene": "reference",
    "resolution": "2K",
    "aspect_ratio": "16:9",
    "minimax_single_frame_role": "first",
    "duration": 6,
    "referenceMediaItems": [
      {
        "url": "https://cdn.example.com/reference-video.mp4",
        "kind": "video",
        "name": "reference-video.mp4",
        "mimeType": "video/mp4",
        "durationSeconds": 8,
        "durationToken": "video_duration_token_from_files_api",
        "width": 1280,
        "height": 720,
        "sizeBytes": 8388608,
        "framesPerSecond": 30,
        "videoBitrateMbps": 8,
        "videoMetadataToken": "video_metadata_token_from_original_files_api_upload_response"
      }
    ]
  }
}

Create response

The create endpoint returns a public task id. Poll the status endpoint until the task succeeds or fails.

{
  "id": "task_minimax_h3_example",
  "status": "queued",
  "model": "minimax-h3",
  "reserved_credits": 156,
  "final_credits": 0,
  "settlement_status": "RESERVED",
  "created_at": "2026-05-11T00:00:00.000Z",
  "updated_at": "2026-05-11T00:00:00.000Z",
  "result": null,
  "error": null
}

Common errors

validation_failed, insufficient_credits, idempotency_conflict, rate_limited, not_found

Some modes require Files API reference uploads.

MiniMax H3 API Integration