> ## Documentation Index > Fetch the complete documentation index at: https://docs.evolink.ai/llms.txt > Use this file to discover all available pages before exploring further. # Topaz 视频超分辨率 > - Topaz Video Upscale (topaz-video-upscale) 模型支持AI视频超分辨率放大 - 支持 1x（仅增强）、2x 和 4x 放大倍数 - 按输入视频时长（每秒）和放大倍数计费 - 异步处理模式，使用返回的任务ID [进行查询](/cn/api-manual/task-management/get-task-detail) - 放大后的视频链接有效期为24小时，请尽快保存 ## OpenAPI ````yaml cn/api-manual/video-series/topaz/topaz-video-upscale.json POST /v1/videos/generations openapi: 3.1.0 info: title: topaz-video-upscale 接口 description: 使用Topaz模型进行AI视频超分辨率放大 license: name: MIT version: 1.0.0 servers: - url: https://api.evolink.ai description: 生产环境 security: - bearerAuth: [] tags: - name: 视频生成 description: AI视频生成相关接口 paths: /v1/videos/generations: post: tags: - 视频生成 summary: topaz-video-upscale 接口 description: >- - Topaz Video Upscale (topaz-video-upscale) 模型支持AI视频超分辨率放大 - 支持 1x（仅增强）、2x 和 4x 放大倍数 - 按输入视频时长（每秒）和放大倍数计费 - 异步处理模式，使用返回的任务ID [进行查询](/cn/api-manual/task-management/get-task-detail) - 放大后的视频链接有效期为24小时，请尽快保存 operationId: createVideoGeneration requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/VideoGenerationRequest' examples: basic_2x_upscale: summary: 基本 2x 放大（默认） value: model: topaz-video-upscale video_urls: - https://example.com/my-video.mp4 upscale_4x: summary: 4x 放大（更高质量，1.75倍价格） value: model: topaz-video-upscale video_urls: - https://example.com/my-video.mp4 model_params: upscale_factor: '4' upscale_1x_enhance: summary: 1x 增强（不改变分辨率，仅画质提升） value: model: topaz-video-upscale video_urls: - https://example.com/my-video.mp4 model_params: upscale_factor: '1' with_callback: summary: 带回调URL value: model: topaz-video-upscale video_urls: - https://example.com/my-video.mp4 model_params: upscale_factor: '2' callback_url: https://your-domain.com/webhooks/video-task-completed responses: '200': description: 视频放大任务创建成功 content: application/json: schema: $ref: '#/components/schemas/VideoGenerationResponse' '400': description: 请求参数错误 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: missing_video: summary: 缺少视频URL value: error: code: invalid_parameter message: >- video_urls is required and must not be empty for topaz-video-upscale type: invalid_request_error probe_failed: summary: 视频探测失败 value: error: code: video_probe_failed message: >- Failed to detect video duration, please check video URL accessibility type: invalid_request_error '401': description: 未认证、Token无效或过期 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: unauthorized message: Invalid or expired token type: authentication_error '402': description: 配额不足、需要充值 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: insufficient_quota message: Insufficient quota. Please top up your account. type: insufficient_quota '403': description: 无权限访问 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: model_access_denied message: 'Token does not have access to model: topaz-video-upscale' type: invalid_request_error '429': description: 请求频率超限 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: rate_limit_exceeded message: Too many requests, please try again later type: rate_limit_error '500': description: 服务器内部错误 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: internal_error message: Internal server error type: api_error components: schemas: VideoGenerationRequest: type: object required: - model - video_urls properties: model: type: string description: 视频放大模型名称 enum: - topaz-video-upscale default: topaz-video-upscale example: topaz-video-upscale video_urls: type: array description: |- 输入视频URL列表，用于放大处理 **注意：** - 每次请求仅支持 `1` 个视频 - 视频URL必须可被服务器直接访问（公共URL或预签名URL） - 服务器将自动检测输入视频时长用于计费 - 支持的格式：`.mp4` items: type: string format: uri minItems: 1 maxItems: 1 example: - https://example.com/my-video.mp4 model_params: type: object description: 模型特定参数，用于控制放大行为 properties: upscale_factor: type: string description: |- 视频放大倍数，控制输出分辨率倍数 **可选项：** - `"1"` - 仅增强（不改变分辨率，AI画质提升） - `"2"` - 2倍放大（如 720p 到 1440p）— **默认值** - `"4"` - 4倍放大（如 720p 到 2880p） **计费影响：** - 不同放大倍数价格不同，倍数越高费用越高 **类型处理：** - 同时接受字符串（`"4"`）和数字（`4`）格式 - 无效值将静默回退到 `"2"`（默认值） enum: - '1' - '2' - '4' default: '2' example: '2' callback_url: type: string description: |- 任务完成后的HTTPS回调地址 **回调时机：** - 任务完成（completed）、失败（failed）或取消（cancelled）时触发 - 在计费确认完成后发送 **安全限制：** - 仅支持HTTPS协议 - 禁止回调到内网IP地址（127.0.0.1、10.x.x.x、172.16-31.x.x、192.168.x.x等） - URL长度不超过`2048`字符 **回调机制：** - 超时时间：`10`秒 - 失败后最多重试`3`次（会分别在失败的`1`秒/`2`秒/`4`秒后进行重试） - 回调响应体格式与任务查询接口返回的格式一致 - 回调地址若返回2xx状态码视为成功，其他状态码会触发重试 format: uri example: https://your-domain.com/webhooks/video-task-completed VideoGenerationResponse: type: object properties: created: type: integer description: 任务创建时间戳 example: 1757169743 id: type: string description: 任务ID example: task-unified-1757169743-7cvnl5zw model: type: string description: 实际使用的模型名称 example: topaz-video-upscale object: type: string enum: - video.generation.task description: 任务的具体类型 progress: type: integer description: 任务进度百分比 (0-100) minimum: 0 maximum: 100 example: 0 status: type: string description: 任务状态 enum: - pending - processing - completed - failed example: pending task_info: $ref: '#/components/schemas/VideoTaskInfo' description: 视频任务详细信息 type: type: string enum: - text - image - audio - video description: 任务的输出类型 example: video usage: $ref: '#/components/schemas/VideoUsage' description: 使用量和计费信息 ErrorResponse: type: object properties: error: type: object properties: code: type: string description: 错误代码标识符 message: type: string description: 错误描述信息 type: type: string description: 错误类型 VideoTaskInfo: type: object properties: can_cancel: type: boolean description: 任务是否可以取消 example: true estimated_time: type: integer description: 预估完成时间（秒） minimum: 0 example: 600 video_duration: type: integer description: 视频时长（秒） example: 0 VideoUsage: type: object description: 使用量和计费信息 properties: billing_rule: type: string description: 计费规则。topaz-video-upscale 按输入视频时长（每秒）乘以放大倍数定价进行 `per_second` 计费 enum: - per_call - per_token - per_second example: per_second credits_reserved: type: number description: 预估消耗积分（预授权）。最终计费将在任务完成后根据实际输入视频时长计算 minimum: 0 example: 28.8 user_group: type: string description: 用户组类别 example: default securitySchemes: bearerAuth: type: http scheme: bearer description: |- ##所有接口均需要使用Bearer Token进行认证## **获取 API Key ：** 访问 [API Key 管理页面](https://evolink.ai/dashboard/keys) 获取您的 API Key **使用时在请求头中添加：** ``` Authorization: Bearer YOUR_API_KEY ``` ````