Check MiniMax H3 availability, inputs, parameters, file requirements, credit pricing, and request examples for Rivya Public API v1. Model ID: minimax-h3.

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

Credit pricing

The credit cost depends on your inputs and settings. Check the estimate before you start. The final cost is rounded up to whole credits.

Capability

Video

Billing

METERED

Prompt limit

7000 characters

Request fields

Set model at the top level. Put model-specific controls and reference inputs in params, using the format documented for this model.

Key	Type	Required	Default	Description
model	string	Yes	minimax-h3	Set model to minimax-h3.
prompt	string	Yes	-	Maximum 7000 characters for this model.
params	object	No	-	The model-specific params object. Use the documented keys and reference-file format for this model.
client_request_id	string	No	-	Optional ID for tracing this request in your system. It does not replace Idempotency-Key.

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 through Files API first. Keep the original URLs, verified metadata, and tokens. Follow this model's request example: some models use params.referenceMediaItems, while others use different fields.

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

When duration verification is required, use duration_token from /api/v1/files as durationToken in the request. Keep any additional signed metadata this model requires.

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 camera slowly circles a product bottle on a studio table.",
  "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 camera slowly circles a product bottle on a studio table.",
  "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"
      }
    ]
  }
}

Example response

An accepted generation request returns a task ID. Poll the status endpoint until the task succeeds or fails. A status request failure does not mean generation failed.

{
  "id": "task_minimax_h3_example",
  "status": "queued",
  "model": "minimax-h3",
  "reserved_credits": 78,
  "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 reference