---
title: "Seedance 2.5*"
method: POST
path: "/generate/video/bytedance/seedance-2-5"
tags: ["Video"]
---

# Seedance 2.5\*

`POST /generate/video/bytedance/seedance-2-5`

Most advanced Seedance with 30s clips, native audio, and up to 50 references. Default choice for most video generations — quality is head and shoulders above other models, it supports durations up to 30 seconds, and it outputs up to 1080p. Reach for this first unless the user asks for a specific model, needs 4k output, or cost is the priority.

* This API endpoint includes Krea prompt enhancement in addition to the base Seedance 2.5 model.

## Headers

- `X-Webhook-URL` string, uri

## Request body

- object
  - `prompt` string, required
  - `start_image` string, uri, nullable — Can be an external URL, base64 data URI, or uploaded asset URL.
  - `aspect_ratio` '16:9' | '4:3' | '1:1' | '3:4' | '9:16' | '21:9'
  - `end_image` string, uri, nullable — Can be an external URL, base64 data URI, or uploaded asset URL.
  - `reference_images` string[]
  - `reference_videos` string[]
  - `reference_audios` string[]
  - `duration` number
  - `generate_audio` boolean
  - `resolution` '480p' | '720p' | '1080p'
  - `seed` integer
  - `effects` object[]
    - `id` string, uuid, required
    - `name` string, required
    - `asset_url` string, uri, required — Can be an external URL, base64 data URI, or uploaded asset URL.
    - `asset_type` 'image' | 'video', required
  - `enhance_prompt` boolean — When true, rewrites the prompt for Seedance 2 using Krea prompt enhancement before video generation.

## Response `200`

The resulting job data. This will be returned in a pending state until the job is completed. See [`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the results.

- object
  - `job_id` string, uuid, required
  - `status` 'backlogged' | 'queued' | 'scheduled' | 'processing' | 'sampling' | 'intermediate-complete' | 'completed' | 'failed' | 'cancelled', required
  - `created_at` string, date-time, required
  - `completed_at` unknown, required
  - `result` unknown, required
  - `error` object
    - `code` string, required
    - `message` string

## Other responses

- `400` — The request body is invalid.
- `401` — You are not authenticated.
- `402` — You have run out of credits.
- `429` — You have reached the maximum number of concurrent jobs.

## Changes

- **2026-09-05** `27a8a554d4fd` — 1 info
  - the `created_at` response's property pattern was changed from `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$` to `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$` for the status `200`
- **2026-08-18** `b8b847f31f6f` — 1 info
  - added the new `1080p` enum value to the request property `resolution`
- **2026-08-07** `7ab9df28e2de` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/krea/apis/krea-api/changes/generate/video/bytedance/seedance-2-5/post.md)

---

[API](https://skmtc.dev/krea/apis/krea-api.md) · [All operations](https://skmtc.dev/krea/apis/krea-api/llms.txt) · [OpenAPI document](https://skmtc.dev/krea/apis/krea-api/revisions/fe9306f776eb?raw)