Use Seedance 2.5 through Rivya Public API v1 with model id seedance-2-5, supported inputs, parameters, Files API rules, credits, and response examples.

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

Base credits

per_input_and_output_second · 480p_with_video=17 · 480p_without_video=28 · 720p_with_video=38 · 720p_without_video=63 · 1080p_with_video=68.5 · 1080p_without_video=114 · ⌈total⌉

Capability

Video

Billing

METERED

Prompt limit

30000 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	seedance-2-5	Use the seedance-2-5 API model id.
prompt	string	No	-	Maximum 30000 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 input contract before uploading; text, frame guidance, and references are mutually exclusive scenes.
resolution	select	No	720p	-	480p, 720p, 1080p	Each resolution has separate no-video and with-video rates.
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	Also return the final video frame as a still image for review or follow-up work.
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 first, then place the returned URL and duration token inside params.referenceMediaItems.

Reference rule

Guide frames or high-capacity references: Frames accepts 1 or 2 JPEG, PNG, WebP, BMP, GIF, or TIFF 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, and all media together is capped at 50 files.

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, image/bmp, image/gif, image/tiff
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 cinematic product reveal with smooth camera movement",
  "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 cinematic product reveal with smooth camera movement",
  "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"
      }
    ]
  }
}

Create response

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

{
  "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 Integration