nano-banana

POST

/v1beta/models/gemini-2.5-flash-image:generateContent

请求参数

Header 参数

Body 参数application/json必填

示例

{
  "contents": [
    {
      "role": "user",
      "parts": [
        {
          "inline_data": {
            "mime_type": "image/jpg",
            "data": "图二base64</9j/4AAQSkZJRxxxx6xilSlAAAQ...>"
          }
        },
        {
          "inline_data": {
            "mime_type": "image/jpeg",
            "data": "图一base64</9j/4AAQSkZJRxxxx6xilSlAAAQA...>"
          }
        },
        {
          "text": "生成图片:按照图二中的背景替换成图一"
        }
      ]
    }
  ],
  "generationConfig": {
    "responseModalities": [
      "IMAGE"
    ]
  }
}

请求示例代码

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'http://apis.koukoutu.com/v1beta/models/gemini-2.5-flash-image:generateContent' \
--header 'Authorization: Bearer sk-xxxx' \
--header 'Content-Type: application/json' \
--data-raw '{
  "contents": [
    {
      "role": "user",
      "parts": [
        {
          "inline_data": {
            "mime_type": "image/jpg",
            "data": "图二base64</9j/4AAQSkZJRxxxx6xilSlAAAQ...>"
          }
        },
        {
          "inline_data": {
            "mime_type": "image/jpeg",
            "data": "图一base64</9j/4AAQSkZJRxxxx6xilSlAAAQA...>"
          }
        },
        {
          "text": "生成图片:按照图二中的背景替换成图一"
        }
      ]
    }
  ],
  "generationConfig": {
    "responseModalities": [
      "IMAGE"
    ]
  }
}'

返回响应

🟢200成功

application/json

Body

示例

{
    "candidates": [
        {
            "content": {
                "parts": [
                    {
                        "inlineData": {
                            "mimeType": "image/jpeg",
                            "data": "<图像base64>,如：/9j/4AAQSkZJRxxxx6xilSlAAAQAAAAxxx1ZLU="
                        }
                    }
                ],
                "role": "model"
            },
            "finishReason": "STOP",
            "index": 0
        }
    ],
    "usageMetadata": {
        "promptTokenCount": 266,
        "candidatesTokenCount": 1226,
        "totalTokenCount": 1643,
        "promptTokensDetails": [
            {
                "modality": "TEXT",
                "tokenCount": 8
            },
            {
                "modality": "IMAGE",
                "tokenCount": 258
            }
        ],
        "candidatesTokensDetails": [
            {
                "modality": "IMAGE",
                "tokenCount": 1120
            }
        ],
        "thoughtsTokenCount": 151
    },
    "modelVersion": "gemini-2.5-flash-image",
    "responseId": "xxxx"
}

🟠401未认证

修改于 2026-01-21 09:21:12

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