> ## 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. # Nanobanana 图像生成 Beta > - Nano Banana (nano-banana-beta) 模型支持文本转图片、图生图、图像编辑等多种生成模式 - 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) - 生成的图像链接，有效期为24小时，请尽快保存 ## OpenAPI ````yaml cn/api-manual/image-series/nanobanana/nanobanana-image-generate.json POST /v1/images/generations openapi: 3.1.0 info: title: nano-banana接口 description: 使用AI模型创建图像任务，支持多种模型和参数配置 license: name: MIT version: 1.0.0 servers: - url: https://api.evolink.ai description: 生产环境 security: - bearerAuth: [] tags: - name: 图像生成 description: AI图像生成相关接口 paths: /v1/images/generations: post: tags: - 图像生成 summary: nano-banana接口 description: >- - Nano Banana (nano-banana-beta) 模型支持文本转图片、图生图、图像编辑等多种生成模式 - 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) - 生成的图像链接，有效期为24小时，请尽快保存 operationId: createImageGeneration requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ImageGenerationRequest' examples: text_to_image: summary: 文本生成图像 value: model: nano-banana-beta prompt: 一只猫在草地上玩耍 responses: '200': description: 图像生成任务创建成功 content: application/json: schema: $ref: '#/components/schemas/ImageGenerationResponse' '400': description: 请求参数错误 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: invalid_request message: Invalid request parameters 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: nano-banana-beta' 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: ImageGenerationRequest: type: object required: - model - prompt properties: model: type: string description: >- 图像生成模型名称 **向后兼容：** 之前接入的模型名 `gemini-2.5-flash-image` 仍然可用，会自动映射到 `nano-banana-beta` enum: - nano-banana-beta default: nano-banana-beta example: nano-banana-beta prompt: type: string description: 提示词，描述想要生成的图像，或描述如何编辑已输入的图像，限制为2000token example: 一只猫在草地上玩耍 maxLength: 2000 size: type: string description: 生成图像的宽高比，默认值为`auto` enum: - auto - '1:1' - '2:3' - '3:2' - '4:3' - '3:4' - '16:9' - '9:16' image_urls: type: array description: >- 参考图像URL列表，用于图生图与图像编辑功能 **注意：** - 单次请求支持输入图像数量：`5`张 - 图像大小：不超过 `10MB` - 支持的文件格式：`.jpeg`、`.jpg`、`.png`、`.webp` - 图像URL需要服务器能直接查看，或者图像URL在访问时会直接进行下载（一般这种URL是以图像的扩展名作为结尾，例如`.png`、`.jpg`） items: type: string format: uri example: - https://example.com/image1.png - https://example.com/image2.png 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/image-task-completed ImageGenerationResponse: type: object properties: created: type: integer description: 任务创建时间戳 example: 1757165031 id: type: string description: 任务ID example: task-unified-1757165031-uyujaw3d model: type: string description: 实际使用的模型名称 example: nano-banana-beta object: type: string enum: - image.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/TaskInfo' description: 异步任务信息 type: type: string enum: - text - image - audio - video description: 任务的输出类型 example: image usage: $ref: '#/components/schemas/Usage' 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 TaskInfo: 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: 45 Usage: type: object description: 使用量和计费信息 properties: billing_rule: type: string description: 计费规则 enum: - per_call - per_token - per_second example: per_call credits_reserved: type: number description: 预估消耗积分数 minimum: 0 example: 1.6 user_group: type: string description: 用户所属计费分组 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 ``` ````