Seedance 2.5

Start on your frame and let it run — a full 30-second scene in a single generation.

bytedance/seedance-2.5/image-to-video

Capabilities

Best for

•Cinematic text-to-video shots
•Short social and ad clips
•Consistent multi-shot sequences
•Look-dev and style exploration

Not for

•Frame-exact rotoscoping
•Feature-length renders
•Pixel-perfect compositing
•Precise on-screen text

Authentication

api key header

The Pika API uses API keys to authenticate requests. Send your key in the X-API-Key header. Your API key is a secret. Don't expose it in browsers or other client-side code. Instead, call the API from your server. The signed-in playground uses a portal session and never sends your API key.

header

X-API-Key: YOUR_API_KEY

Endpoint

asynchronous · poll for the result

POSThttps://api.dev.pika.art/v1/media/bytedance/seedance-2.5/image-to-videogenerate endpoint

GEThttps://api.dev.pika.art/v1/media/jobs/{request_id}poll until completed

GEThttps://api.dev.pika.art/v1/media/jobs/{request_id}/contentget the result URL

Reference Uploads

media inputs

Media inputs accept any public URL. To use a local file, POST its content_type and size_bytes to /v1/media/uploads, PUT the file to the returned upload_url, then pass the url.

upload

# 1. Request a presigned upload URL. Send the file's content
#    type and its exact size in bytes.
curl -X POST https://api.dev.pika.art/v1/media/uploads \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"content_type": "image/png", "size_bytes": 12345}'

# The response returns two URLs:
#   upload_url: a temporary URL to upload the file to. Expires in 5 minutes.
#   url:        the permanent Pika URL. Pass it to the model as the input.
# {
#   "upload_url": "https://upload.r2.pika.art/...?X-Amz-Signature=...",
#   "url": "https://cdn.pika.art/v2/media/uploads/org_abc/9f8e7d.png"
# }

# 2. Upload the file to upload_url, then pass url to the model.
curl -X PUT "<upload_url>" \
  -H "Content-Type: image/png" \
  --data-binary @input.png

Generate

POST /v1/media/bytedance/seedance-2.5/image-to-video

Request

curl -X POST https://api.dev.pika.art/v1/media/bytedance/seedance-2.5/image-to-video \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "prompt": "Cinematic fashion editorial, a narrow vintage elevator lined in deep oxblood mahogany panelling with a brass button plate, a woman in a liquid gold silk slip dress standing perfectly centred, an ocean of cream silk pooled across the floor and spilling out toward camera. Rich low-contrast grade, warm practical light inside the car, soft falloff into the dark wood, fine 35mm grain. Shot 1 — Locked symmetrical wide, matching the frame exactly. She holds still, then slowly raises her right arm and reaches toward the brass button plate on the wall beside her, the silk shifting faintly around her feet as she moves. Camera creeps forward a few inches as her finger nears the panel. Shot 2 — Hard cut to an extreme macro close-up of her hand at the brass plate, shallow focus. Her fingertip presses a worn button; it depresses and lights up warm amber, the glow reflecting in the polished brass and on her skin. A soft mechanical click. Camera drifts a fraction, rack focusing from the lit button to her knuckles. Shot 3 — Hard cut to a high overhead angle looking straight down at her from the elevator ceiling, the gold dress a single stroke of colour in a sea of cream silk. Camera orbits slowly above her as the car rises, the overhead light pulsing as floors pass, warm then dark then warm. She tilts her face up toward the lens. Shot 4 — Hard cut to a low wide from outside as the brass doors slide open and she steps forward out of the car, wading through the cream silk, the whole mass of it dragging with her across the threshold in a slow heavy wave. Camera retreats ahead of her, holding her centred, until she fills the frame and walks past the lens. Audio: deep elevator motor hum, cable creak, a soft button click and amber-lit chime, the dry whisper of silk sliding on wood, doors clunking open, bare feet on polished floor.",
  "duration": 10,
  "resolution": "720p",
  "generate_audio": true,
  "watermark": false,
  "image_url": "https://cdn.pika.art/v2/files/agent/b9ea9264-867b-4db3-ad83-9ee371093a8a/seedance-2.5-i2v-elevator-silk-input.jpg",
  "ratio": "adaptive"
}'

Response

{
  "id": "media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0",
  "status": "queued"
}

Request body

promptstringrequired

Text prompt describing the video to generate.

durationenumrequired

Video length in seconds (4-30), or 'auto' to let the model choose.

resolutionenum

Output resolution (480p/720p for 2.5).

generate_audioboolean

Whether to generate audio for the video.

watermarkbooleandefault: false

Whether to add a watermark to the output video.

output_formatenum

Output container format.

bitrate_modeenum

Output encode bitrate. 'high' produces a larger, higher-bitrate file; defaults to 'standard'.

image_urlstringrequired

URL of the starting-frame image to animate.

end_image_urlstring

Optional URL of the image to use as the last frame.

ratiostringfixed: adaptive

Output aspect ratio.

Accepted values

resolution
output_format
bitrate_mode

Input modes

Image urlimage_url

Use a public URL directly, or POST { content_type, size_bytes } to /v1/media/uploads, PUT the image to the returned upload_url with the returned headers, then pass the url.

End image urlend_image_url

Use a public URL directly, or POST { content_type, size_bytes } to /v1/media/uploads, PUT the image to the returned upload_url with the returned headers, then pass the url.

Returns

Returns a job object with status , not the final output. Store the id from the response and poll the job until it completes.

Poll status

GET /v1/media/jobs/{request_id}

Request

curl https://api.dev.pika.art/v1/media/jobs/{request_id} \
  -H "X-API-Key: YOUR_API_KEY"

Response

{
  "id": "media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0",
  "status": "running"
}

Poll the job by id until it reaches a terminal state: completed or failed.

The job object

idstring

Unique identifier for the job.

statusenum

The status of the job.One of:

object

The generation output. Present once the job completes.

errorstring

If the job failed, the reason for the failure.

Get result

GET /v1/media/jobs/{request_id}/content

Request

curl https://api.dev.pika.art/v1/media/jobs/{request_id}/content \
  -H "X-API-Key: YOUR_API_KEY"

Response

{
  "url": "https://api.dev.pika.art/v1/files/video_8f3a2c91.mp4"
}

Once the job completes, fetch a download URL for the generated media.

Returns

urlstring

Download URL for the generated file.

Errors

shared across calls

Errors use conventional HTTP status codes with a JSON body of the shape {"message": "..."}. Validation failures return 422 with a message naming the offending field. Submit rejections after the job row exists (balance, rate limit) return the failed job envelope — branch on error.code.

Status	When	Body
401 Unauthorized	The API key is missing or invalid.	{"message":"Invalid API key"}
403 Forbidden	An inactive key is rejected with a `{"message"}` body. A submit that the org balance or postpaid cycle limit cannot cover is rejected after the job row exists and returns the failed job envelope. `GET /billing/balance` separates the two: a `200` means the key is active, so the rejection was the balance or the cycle limit.	{"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"insufficient_balance","message":"Insufficient org balance"}}
404 Not Found	No job with that id exists in your org, or the media path names an unknown vendor/model/function.	{"message":"media job not found"}
409 Conflict	The result was requested before the job completed, or an Idempotency-Key header was reused with a different body.	{"message":"media job is not ready"}
422 Unprocessable Entity	The request body failed validation: an invalid enum value, a missing required field, a wrong type, or malformed JSON. The JSON message names the offending field. A schema-valid parameter combination that cannot be priced instead fails after job creation and returns the failed job envelope with error code `invalid_input`.	{"message":"duration: Input should be less than or equal to 15"}
429 Too Many Requests	Org limit reached: requests per minute or day, or concurrent jobs. Returned as the failed job envelope; check the Retry-After header and retry with a fresh Idempotency-Key.	{"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"rate_limited","message":"rate limit exceeded: rpm"}}
503 Service Unavailable	The model rail or a backend dependency is temporarily unavailable. Returned as the failed job envelope; retry with backoff and a fresh Idempotency-Key.	{"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"provider_unavailable","message":"media dispatch unavailable"}}

# 1. Request a presigned upload URL. Send the file's content

# type and its exact size in bytes.

curl -X POST https://api.dev.pika.art/v1/media/uploads \

-H "X-API-Key: YOUR_API_KEY" \

-H "Content-Type: application/json" \

-d '{"content_type": "image/png", "size_bytes": 12345}'

# The response returns two URLs:

# upload_url: a temporary URL to upload the file to. Expires in 5 minutes.

# url: the permanent Pika URL. Pass it to the model as the input.

# {

# "upload_url": "https://upload.r2.pika.art/...?X-Amz-Signature=...",

# "url": "https://cdn.pika.art/v2/media/uploads/org_abc/9f8e7d.png"

# }

# 2. Upload the file to upload_url, then pass url to the model.

curl -X PUT "<upload_url>" \

-H "Content-Type: image/png" \

--data-binary @input.png

curl -X POST https://api.dev.pika.art/v1/media/bytedance/seedance-2.5/image-to-video \

-H "X-API-Key: YOUR_API_KEY" \

-H "Content-Type: application/json" \

-d '{

"prompt": "Cinematic fashion editorial, a narrow vintage elevator lined in deep oxblood mahogany panelling with a brass button plate, a woman in a liquid gold silk slip dress standing perfectly centred, an ocean of cream silk pooled across the floor and spilling out toward camera. Rich low-contrast grade, warm practical light inside the car, soft falloff into the dark wood, fine 35mm grain. Shot 1 — Locked symmetrical wide, matching the frame exactly. She holds still, then slowly raises her right arm and reaches toward the brass button plate on the wall beside her, the silk shifting faintly around her feet as she moves. Camera creeps forward a few inches as her finger nears the panel. Shot 2 — Hard cut to an extreme macro close-up of her hand at the brass plate, shallow focus. Her fingertip presses a worn button; it depresses and lights up warm amber, the glow reflecting in the polished brass and on her skin. A soft mechanical click. Camera drifts a fraction, rack focusing from the lit button to her knuckles. Shot 3 — Hard cut to a high overhead angle looking straight down at her from the elevator ceiling, the gold dress a single stroke of colour in a sea of cream silk. Camera orbits slowly above her as the car rises, the overhead light pulsing as floors pass, warm then dark then warm. She tilts her face up toward the lens. Shot 4 — Hard cut to a low wide from outside as the brass doors slide open and she steps forward out of the car, wading through the cream silk, the whole mass of it dragging with her across the threshold in a slow heavy wave. Camera retreats ahead of her, holding her centred, until she fills the frame and walks past the lens. Audio: deep elevator motor hum, cable creak, a soft button click and amber-lit chime, the dry whisper of silk sliding on wood, doors clunking open, bare feet on polished floor.",

"duration": 10,

"resolution": "720p",

"generate_audio": true,

"watermark": false,

"image_url": "https://cdn.pika.art/v2/files/agent/b9ea9264-867b-4db3-ad83-9ee371093a8a/seedance-2.5-i2v-elevator-silk-input.jpg",

"ratio": "adaptive"

Status

When

Body

401 Unauthorized

The API key is missing or invalid.

{"message":"Invalid API key"}

403 Forbidden

An inactive key is rejected with a `{"message"}` body. A submit that the org balance or postpaid cycle limit cannot cover is rejected after the job row exists and returns the failed job envelope. `GET /billing/balance` separates the two: a `200` means the key is active, so the rejection was the balance or the cycle limit.

{"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"insufficient_balance","message":"Insufficient org balance"}}

404 Not Found

No job with that id exists in your org, or the media path names an unknown vendor/model/function.

{"message":"media job not found"}

409 Conflict

The result was requested before the job completed, or an Idempotency-Key header was reused with a different body.

{"message":"media job is not ready"}

422 Unprocessable Entity

The request body failed validation: an invalid enum value, a missing required field, a wrong type, or malformed JSON. The JSON message names the offending field. A schema-valid parameter combination that cannot be priced instead fails after job creation and returns the failed job envelope with error code `invalid_input`.

{"message":"duration: Input should be less than or equal to 15"}

429 Too Many Requests

Org limit reached: requests per minute or day, or concurrent jobs. Returned as the failed job envelope; check the Retry-After header and retry with a fresh Idempotency-Key.

{"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"rate_limited","message":"rate limit exceeded: rpm"}}

503 Service Unavailable

The model rail or a backend dependency is temporarily unavailable. Returned as the failed job envelope; retry with backoff and a fresh Idempotency-Key.

{"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"provider_unavailable","message":"media dispatch unavailable"}}

Seedance 2.5

Capabilities

Authentication

Endpoint

Reference Uploads

Generate

Poll status

Get result

Errors

Join theclub

Seedance 2.5

Capabilities

Authentication

Endpoint

Reference Uploads

Generate

Poll status

Get result

Errors