> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sinancode.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nano Banana 文生图

> 使用 Nano Banana 模型生成图片（异步）

使用 [Google DeepMind](https://deepmind.google) 的 Nano Banana (Gemini 2.5 Flash) 模型从文本生成图片。

**模型特点：**

* **快速生成** - 基于 Gemini 2.5 Flash，生成速度快
* **高性价比** - 成本较低，适合批量生成场景
* **1K 分辨率** - 支持最高 1024x1024 像素输出
* **优秀理解力** - 继承 Gemini 的语义理解和推理能力


## OpenAPI

````yaml /cn/openapi.yaml POST /generate/k/nano-banana
openapi: 3.0.0
info:
  contact:
    email: support@sinancode.com
    name: API Support
    url: https://sinancode.com/support
  description: AI 模型任务调度平台 API
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
  termsOfService: https://sinancode.com/terms-of-service
  title: TikTomato API
  version: '1.0'
servers:
  - url: https://api.sinancode.com/v1
    description: Production server
security: []
paths:
  /generate/k/nano-banana:
    post:
      tags:
        - public
      summary: Nano Banana 图片生成
      description: 使用 Nano Banana 模型生成图片（异步）
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ka.CreateNanoBananaTaskRequest'
        description: Task parameters
        required: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/dto.CreateTaskResponse'
        '400':
          description: Invalid parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/apierror.ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/apierror.ErrorResponse'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/apierror.ErrorResponse'
      security:
        - AccessToken: []
components:
  schemas:
    ka.CreateNanoBananaTaskRequest:
      properties:
        image_size:
          default: '1:1'
          description: 图片尺寸（可选，默认 1:1）- 图片宽高比
          enum:
            - '1:1'
            - '9:16'
            - '16:9'
            - '3:4'
            - '4:3'
            - '3:2'
            - '2:3'
            - '5:4'
            - '4:5'
            - '21:9'
            - auto
          example: '1:1'
          type: string
        output_format:
          description: 输出格式（可选）- 图片输出格式
          enum:
            - png
            - jpeg
          example: png
          type: string
        prompt:
          description: 提示词（必填，最大5000字符）- 图片生成的文本描述
          example: >-
            A surreal painting of a giant banana floating in space, stars and
            galaxies in the background, vibrant colors, digital art
          maxLength: 5000
          minLength: 1
          type: string
      required:
        - prompt
      type: object
    dto.CreateTaskResponse:
      properties:
        task_id:
          description: Task ID
          example: 01234567-89ab-cdef-0123-456789abcdef
          type: string
      required:
        - task_id
      type: object
    apierror.ErrorResponse:
      properties:
        error_code:
          description: Machine-readable error code (e.g. TASK.INVALID_PARAMS)
          type: string
        message:
          description: User-friendly error message
          type: string
      type: object
  securitySchemes:
    AccessToken:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 请使用您的 API Token 进行认证

````