Check Seedance 2.5 availability, inputs, parameters, file requirements, credit pricing, and request examples for Rivya Public API v1. Model ID: seedance-2-5.

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

API model ID

seedance-2-5

Inputs

text, file

Files API

Required for reference modes

Credit pricing

Credit rate: 17–158 per second of total video duration (input + output) The final cost is rounded up to whole credits.

Capability

Video

Billing

METERED

Prompt limit

20480 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	seedance-2-5	Set model to seedance-2-5.
prompt	string	No	-	Maximum 20480 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 text, guide frames, or references before uploading. Each scene accepts a separate set of inputs.
resolution	select	No	720p	-	480p, 720p, 1080p	Each resolution has separate rates for requests with and without video input.
aspect_ratio	select	No	adaptive	-	1:1, 4:3, 3:4, 16:9, 9:16, 21:9, adaptive	Aspect ratio
duration	number	No	5	min -1 / max 30 / step 1	-	Choose -1 for automatic duration or a whole number from 4 through 30 seconds. Automatic duration reserves 30 output seconds before the run.
output_format	select	No	mp4	-	mp4, mov	Output format
generate_audio	select	No	true	-	true, false	Request generated audio with the output clip.
return_last_frame	select	No	false	-	false, true	Request the final video frame as a still from the provider. The video result view does not provide a separate still-frame handoff.
web_search	select	No	false	-	false, true	Allow the model to use its optional web-search control for this run.
nsfw_checker	select	No	true	-	false, true	Enable the model's optional content filter. No automated filter can guarantee complete coverage.

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 image, video, and audio references: Frames accepts 1 or 2 JPEG/PNG/WebP images up to 30 MB each. Reference accepts up to 30 images, 10 MP4/MOV videos up to 95 MB and 2–30 seconds each, and 10 MP3/WAV audio files up to 15 MB and 2–30 seconds each. Video and audio totals are each capped at 30 seconds, with no more than 50 files overall.

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	95 MB	video/mp4, video/quicktime
audio	15 MB	audio/mpeg, audio/wav, audio/x-wav

Minimal request

{
  "model": "seedance-2-5",
  "prompt": "A camera slowly circles a product bottle on a studio table.",
  "params": {
    "seedance_scene": "text",
    "resolution": "720p",
    "aspect_ratio": "adaptive",
    "duration": 5,
    "output_format": "mp4",
    "generate_audio": "true",
    "return_last_frame": "false",
    "web_search": "false",
    "nsfw_checker": "true"
  }
}

Reference-file request

{
  "model": "seedance-2-5",
  "prompt": "A camera slowly circles a product bottle on a studio table.",
  "params": {
    "seedance_scene": "reference",
    "resolution": "720p",
    "aspect_ratio": "adaptive",
    "duration": 5,
    "output_format": "mp4",
    "generate_audio": "true",
    "return_last_frame": "false",
    "web_search": "false",
    "nsfw_checker": "true",
    "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_seedance_2_5_example",
  "status": "queued",
  "model": "seedance-2-5",
  "reserved_credits": 315,
  "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.

Seedance 2.5 API reference