Use Seedance 2.0 through Rivya Public API v1 with model id seedance-2, supported inputs, parameters, Files API rules, credits, and response examples.

Available via APIText input readyVideo

API model id

seedance-2

Inputs

text

Files API

Not required for the minimal request

Base credits

per_input_and_output_second · 720p_without_video=41 · 1080p_with_video=62 · 1080p_without_video=102 · 4K_with_video=128 · 4K_without_video=208 · ⌈total⌉

Capability

Video

Billing

METERED

Prompt limit

20000 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	Use the seedance-2 API model id.
prompt	string	Yes	-	Maximum 20000 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	Selects which Seedance 2 path to run: pure text-to-video, first-frame / first-last-frame guidance, or multimodal reference generation.
resolution	select	No	720p	-	720p, 1080p, 4K	Resolution
aspect_ratio	select	No	16:9	-	1:1, 4:3, 3:4, 16:9, 9:16, 21:9, adaptive	Aspect ratio
duration	number	No	5	min 4 / max 15	-	Duration
generate_audio	select	No	true	-	true, false	Generate audio
return_last_frame	select	No	false	-	false, true	Also returns the final frame as a still image, which is useful for covers, follow-up runs, or later editing.
web_search	select	No	false	-	false, true	Web search
nsfw_checker	select	No	false	-	false, true	NSFW checker

Minimal request

{
  "model": "seedance-2",
  "prompt": "A cinematic product reveal with smooth camera movement",
  "params": {
    "seedance_scene": "text",
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "duration": 5,
    "generate_audio": "true",
    "return_last_frame": "false",
    "web_search": "false",
    "nsfw_checker": "false"
  }
}

Create response

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

{
  "id": "task_seedance_2_example",
  "status": "queued",
  "model": "seedance-2",
  "reserved_credits": 205,
  "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