> ## Documentation Index > Fetch the complete documentation index at: https://docs.linkmodel.ai/llms.txt > Use this file to discover all available pages before exploring further. # seedance-2-5 > ByteDance’s production-oriented multimodal video model for generating and editing coherent clips up to 30 seconds, with synchronized audio, timestamp-level control, and up to 30 image, 10 video, and 10 audio references f ## OpenAPI ````yaml /openapi/video/seedance-2-5.yaml post /videos/generations openapi: 3.0.3 info: title: seedance-2-5 version: 1.0.0 description: > ByteDance’s production-oriented multimodal video model for generating and editing coherent clips up to 30 seconds, with synchronized audio, timestamp-level control, and up to 30 image, 10 video, and 10 audio references for stronger character, scene, motion, and style consistency. x-linkmodel-sort-weight: 99202606289 servers: - url: https://api.linkmodel.ai/v1 description: Production security: - bearerAuth: [] tags: - name: Bytedance - name: video paths: /videos/generations: post: tags: - Bytedance - video summary: seedance-2-5 description: > ByteDance’s production-oriented multimodal video model for generating and editing coherent clips up to 30 seconds, with synchronized audio, timestamp-level control, and up to 30 image, 10 video, and 10 audio references for stronger character, scene, motion, and style consistency. | | | | --- | --- | | **Provider** | Bytedance | | **Tasks** | text-to-video · image-to-video | | **Starting from** | 6.08 USD / token · Pricing details | ## Task lifecycle This endpoint creates an asynchronous task. Poll `GET /videos/generations/{task_id}` with the returned `task_id` until the task reaches a terminal state. If the POST request times out or its result is uncertain, do not blindly retry it. The original request may already have created another task and billing order. Completed asset URLs are dynamically signed. Download or copy assets that must be retained instead of treating the URLs as permanent identifiers. operationId: seedance-2-5 requestBody: required: true content: application/json: schema: type: object properties: prompt: type: string first_frame_image: type: string last_frame_image: type: string duration: type: integer enum: - -1 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 default: -1 description: >- Fixed duration: 4-30 seconds; -1 means intelligent duration. Defaults to `-1`. Value is in s. resolution: type: string enum: - 480P - 720P default: 720P description: 'Must be one of: 480P, 720P. Defaults to `720P`.' size: type: string enum: - 16x9 - 1x1 - 21x9 - 3x4 - 4x3 - 9x16 - adaptive default: 16x9 description: >- Must be one of: 16x9, 1x1, 21x9, 3x4, 4x3, 9x16, adaptive. Defaults to `16x9`. audios: type: array maxItems: 10 items: type: string format: url description: Maximum 10 items. videos: type: array maxItems: 10 items: type: string format: url description: Maximum 10 items. images: type: array maxItems: 30 items: type: string format: url description: Maximum 30 items. model: type: string enum: - seedance-2-5 required: - model responses: '200': description: >- Business response. `code=0` means the task was accepted; validation failures can return HTTP 200 with `code=400`. content: application/json: schema: oneOf: - type: object required: - code - data - msg properties: code: type: integer enum: - 0 example: 0 data: type: object required: - task_id properties: task_id: type: string description: Use this id to poll task status. example: aurora_abc123 order_id: type: string description: Billing order id. example: 019da9cf-d1db-78e1-ac23-526774d01193 status: type: string example: Processing price: type: number description: Charged amount in the model's pricing currency. example: 0.074 msg: type: string example: success request_id: type: string format: uuid example: 250b66dd-e1fb-4bb6-b5f6-c668efadc35d - type: object required: - code - msg properties: code: type: integer enum: - 400 example: 400 data: type: object example: {} msg: type: string example: model is required request_id: type: string format: uuid example: 96be7a7d-3e81-4916-a6b8-19b32773a693 '400': description: >- Malformed HTTP request rejected by the Gateway. Model and parameter validation may instead use HTTP 200 with business `code=400`. content: application/json: schema: type: object properties: code: type: integer example: 400 msg: type: string example: task_id is required request_id: type: string format: uuid example: 96be7a7d-3e81-4916-a6b8-19b32773a693 '401': description: Unauthorized — missing or invalid API key. content: application/json: schema: type: object properties: code: type: integer example: 401 data: type: object example: {} msg: type: string example: invalid api key request_id: type: string format: uuid example: bff4c295-c7da-4507-9708-4627cb6373ba '500': description: Internal error — task creation failed (e.g. insufficient balance). content: application/json: schema: type: object properties: code: type: integer example: 500 msg: type: string example: >- create task failed: billing: code=100601: insufficient balance request_id: type: string format: uuid example: 3409f6fb-fa9a-4534-b530-195b5f6f4e32 components: securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.