# seedance2.0-Fast/多模态视频 ## OpenAPI Specification ```yaml openapi: 3.0.1 info: title: '' description: '' version: 1.0.0 paths: /openapi/v2/rhart-video/sparkvideo-2.0-fast/multimodal-video: post: summary: seedance2.0-Fast/多模态视频 deprecated: false description: >- seedance 2.0 Fast 多模态视频生成，更注重生成速度与性价比。支持多模态参考、视频编辑和视频续写，可组合文本、图片（最多9张）、视频（最多3段）、音频（最多3段）等多模态输入。 operationId: postOpenapiV2RhartVideoSparkvideo20FastMultimodalVideo tags: - 模型API/视频生成与处理/reference-to-video - 标准模型API/视频生成与处理/reference-to-video parameters: - name: Content-Type in: header description: '' required: false example: application/json schema: type: string default: application/json - name: Authorization in: header description: '' required: true example: Bearer [Your API KEY] schema: type: string default: Bearer [Your API KEY] requestBody: content: application/json: schema: type: object properties: prompt: type: string minLength: 1 maxLength: 20480 default: 把视频中的人物替换成图片中的人物，并延长这段视频 description: 视频生成提示词 resolution: type: string enum: - 480p - 720p - 1080p - 2k - 4k default: 720p description: >- 视频分辨率。分为模型原生输出的分辨率（480p、720p），与基于 720p 原生生成后进行超分放大的分辨率（1080p、2k、4k）。 x-option-metadata: - value: 480p description: 480p - value: 720p description: 720p - value: 1080p description: 1080p - value: 2k description: 2k - value: 4k description: 4k duration: type: string enum: - '-1' - '4' - '5' - '6' - '7' - '8' - '9' - '10' - '11' - '12' - '13' - '14' - '15' default: '5' description: 视频时长（秒） x-option-metadata: - value: '-1' description: '-1' - value: '4' description: '4' - value: '5' description: '5' - value: '6' description: '6' - value: '7' description: '7' - value: '8' description: '8' - value: '9' description: '9' - value: '10' description: '10' - value: '11' description: '11' - value: '12' description: '12' - value: '13' description: '13' - value: '14' description: '14' - value: '15' description: '15' imageUrls: type: array items: type: string format: uri maxItems: 9 default: - >- https://www.runninghub.cn/view?filename=47c88bbf69ce3af8d828ebb22d3818abf6f3b41c720ce4e5666e40386e28c3af.jpg&type=input&subfolder=&Rh-Comfy-Auth=eyJ1c2VySWQiOiIzZjY1MTNlNWEwNjY1N2I4OGYyNjU5NTEzYmU3ZDM0YyIsInNpZ25FeHBpcmUiOjE3NzU4MzA2ODIzMTYsInRzIjoxNzc1MjI1ODgyMzE2LCJzaWduIjoiNGExYmI0YzEzODc0NWY5MDA2YmNkNmU2NTFhZjkyOGIifQ==&Rh-Identify=3f6513e5a06657b88f2659513be7d34c&rand=0.5589574872824656 description: |- 参考图片（0-9张） 支持的文件格式：JPG, JPEG, PNG, WEBP. videoUrls: type: array items: type: string format: uri maxItems: 3 default: - >- https://www.runninghub.cn/view?filename=250637b5b0cba889b913eba6c1aae728229e43eadf0abddd739f18f98755162d.mp4&type=input&subfolder=&Rh-Comfy-Auth=eyJ1c2VySWQiOiIzZjY1MTNlNWEwNjY1N2I4OGYyNjU5NTEzYmU3ZDM0YyIsInNpZ25FeHBpcmUiOjE3NzUwNTIzNjM4NTksInRzIjoxNzc0NDQ3NTYzODU5LCJzaWduIjoiNWU3OGI4NGY1YWVkY2Q2ZTQ0M2I1ZTEzNjU4ZDM1YjAifQ==&Rh-Identify=3f6513e5a06657b88f2659513be7d34c&rand=0.2053726941224695 description: >- 参考视频（0-3个，用于多模态参考/视频编辑/视频续写）。单个视频时长 [2, 15] s，最多传入 3 个参考视频，所有视频总时长不超过 15s。 支持的文件格式：MP4, MOV. audioUrls: type: array items: type: string format: uri maxItems: 3 default: [] description: >- 参考音频（0-3个，需至少包含1个参考视频或图片）。单个音频时长 [2, 15] s，最多传入 3 段参考音频，所有音频总时长不超过 15 s。 支持的文件格式：MP3, WAV. generateAudio: type: boolean default: true description: 是否生成视频音频 ratio: type: string enum: - adaptive - '16:9' - '4:3' - '1:1' - '3:4' - '9:16' - '21:9' default: adaptive description: 视频宽高比 x-option-metadata: - value: adaptive description: 自适应 - value: '16:9' description: '16:9' - value: '4:3' description: '4:3' - value: '1:1' description: '1:1' - value: '3:4' description: '3:4' - value: '9:16' description: '9:16' - value: '21:9' description: '21:9' realPersonMode: type: boolean default: true description: 真人模式，开启后系统会自动将图片/视频/音频转为火山资产（asset://），提升生成效果。 conversionSlots: type: array items: type: string enum: - all - image1 - image2 - image3 - image4 - image5 - image6 - image7 - image8 - image9 - video1 - video2 - video3 default: - all description: 真人素材资产化槽位，多选；all 表示所有图片/视频槽位都做资产化。 x-option-metadata: - value: all description: all - value: image1 description: image1 - value: image2 description: image2 - value: image3 description: image3 - value: image4 description: image4 - value: image5 description: image5 - value: image6 description: image6 - value: image7 description: image7 - value: image8 description: image8 - value: image9 description: image9 - value: video1 description: video1 - value: video2 description: video2 - value: video3 description: video3 returnLastFrame: type: boolean default: false description: 是否返回视频尾帧图片 seed: type: integer minimum: -1 maximum: 2147483647 multipleOf: 1 default: -1 description: 种子整数，用于控制生成内容的随机性。 required: - prompt - resolution - duration x-apifox-orders: - prompt - resolution - duration - imageUrls - videoUrls - audioUrls - generateAudio - ratio - realPersonMode - conversionSlots - returnLastFrame - seed example: prompt: 把视频中的人物替换成图片中的人物，并延长这段视频 resolution: 720p duration: '5' imageUrls: - >- https://www.runninghub.cn/view?filename=47c88bbf69ce3af8d828ebb22d3818abf6f3b41c720ce4e5666e40386e28c3af.jpg&type=input&subfolder=&Rh-Comfy-Auth=eyJ1c2VySWQiOiIzZjY1MTNlNWEwNjY1N2I4OGYyNjU5NTEzYmU3ZDM0YyIsInNpZ25FeHBpcmUiOjE3NzU4MzA2ODIzMTYsInRzIjoxNzc1MjI1ODgyMzE2LCJzaWduIjoiNGExYmI0YzEzODc0NWY5MDA2YmNkNmU2NTFhZjkyOGIifQ==&Rh-Identify=3f6513e5a06657b88f2659513be7d34c&rand=0.5589574872824656 videoUrls: - >- https://www.runninghub.cn/view?filename=250637b5b0cba889b913eba6c1aae728229e43eadf0abddd739f18f98755162d.mp4&type=input&subfolder=&Rh-Comfy-Auth=eyJ1c2VySWQiOiIzZjY1MTNlNWEwNjY1N2I4OGYyNjU5NTEzYmU3ZDM0YyIsInNpZ25FeHBpcmUiOjE3NzUwNTIzNjM4NTksInRzIjoxNzc0NDQ3NTYzODU5LCJzaWduIjoiNWU3OGI4NGY1YWVkY2Q2ZTQ0M2I1ZTEzNjU4ZDM1YjAifQ==&Rh-Identify=3f6513e5a06657b88f2659513be7d34c&rand=0.2053726941224695 generateAudio: true ratio: adaptive realPersonMode: true conversionSlots: - all returnLastFrame: false seed: -1 responses: '200': x-apifox-name: 成功 x-apifox-ordering: 0 description: 任务结果查询接口：`/openapi/v2/query` content: application/json: schema: type: object properties: taskId: type: string description: 任务 ID，用于后续查询任务结果。 status: type: string enum: - QUEUED - RUNNING - SUCCESS - FAILED description: 任务状态。 errorCode: type: string description: 错误码。 errorMessage: type: string description: 错误信息。 results: type: array items: type: object properties: url: type: string description: 输出文件 URL。 nullable: true outputType: type: string description: 输出类型或文件扩展名。 nullable: true text: type: string description: 文本输出内容。 nullable: true x-apifox-orders: - url - outputType - text description: 任务输出结果列表；处理中时可能为 null。 nullable: true clientId: type: string description: 客户端标识。 promptTips: type: string description: 提示词执行反馈，使用 JSON 字符串承载。 failedReason: type: object additionalProperties: true description: 失败详情对象。 x-apifox-orders: [] nullable: true usage: type: object description: 计费与耗时信息。 properties: thirdPartyConsumeMoney: type: string description: 第三方消耗金额。 nullable: true consumeMoney: type: string description: 平台消耗金额。 nullable: true consumeCoins: type: string description: 平台消耗点数。 nullable: true taskCostTime: type: string description: 任务耗时。 nullable: true x-apifox-orders: - thirdPartyConsumeMoney - consumeMoney - consumeCoins - taskCostTime nullable: true required: - taskId - status - errorCode - errorMessage - results - clientId - promptTips x-apifox-orders: - taskId - status - errorCode - errorMessage - results - clientId - promptTips - failedReason - usage examples: taskSubmitted: summary: 提交任务响应示例 value: taskId: '2013508786110730241' status: RUNNING errorCode: '' errorMessage: '' results: null clientId: f828b9af25161bc066ef152db7b29ccc promptTips: >- {"result": true, "error": null, "outputs_to_execute": ["4"], "node_errors": {}} taskSucceeded: summary: 任务完成（查询状态接口）响应示例 value: taskId: '2013508786110730241' status: SUCCESS errorCode: '' errorMessage: '' failedReason: {} usage: consumeMoney: null consumeCoins: null taskCostTime: '0' thirdPartyConsumeMoney: null results: - url: >- https://rh-images-1252422369.cos.ap-beijing.myqcloud.com/22820eb19d5010de41dbf6856e984340/2026-06-12/d9daadeb52277080df8bebf6f5308ae8.mp4 outputType: mp4 text: null clientId: '' promptTips: '' headers: {} security: [] x-sku-id: '2034917373414539278' x-apifox-folder: 模型API/视频生成与处理/reference-to-video x-apifox-status: released x-run-in-apifox: https://app.apifox.com/web/project/7913447/apis/api-448183128-run components: schemas: {} securitySchemes: {} servers: - url: https://www.runninghub.cn description: runninghub.cn security: [] ```