gemini-3-pro-image-preview（原版格式-文生图）

正式环境

https://api.302.ai

POST

/google/v1/models/gemini-3-pro-image-preview

来自Google的Nano-Banana-Pro模型

我们302对这个接口做了2个优化：
1.
支持返回url或原始bs64 data
2.
支持传入image_url对图片进行编辑

价格：输入 2 PTC/1M Tokens 输出 120 PTC/1M Tokens

请求参数

Query 参数

Header 参数

Body 参数application/json

示例

返回响应

🟢200OK

application/json

Body

请求示例

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.302.ai/google/v1/models/gemini-3-pro-image-preview?response_format' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data-raw '{
  "contents": [
    {
      "parts": [
        {
          "text": "Hi, can you create a 3d rendered image of a pig with wings and a top hat flying over a happy futuristic scifi city with lots of greenery?"
        }
      ]
    }
  ],
  "generationConfig": {
    "responseModalities": [
      "TEXT",
      "IMAGE"
    ],
    "imageConfig": {
      "aspectRatio": "4:3"
    }
  }
}'

响应示例

{
    "candidates": [
        {
            "content": {
                "parts": [
                    {
                        "url": "https://file.302.ai/gpt/imgs/20260103/983491b38aa74bf29fa9b82825718568.jpeg"
                    }
                ],
                "role": "model"
            },
            "finishReason": "STOP",
            "index": 0
        }
    ],
    "modelVersion": "gemini-3-pro-image-preview",
    "responseId": "VFBZac-tFu6p_uMPycCNyAg",
    "usageMetadata": {
        "candidatesTokenCount": 1234,
        "candidatesTokensDetails": [
            {
                "modality": "IMAGE",
                "tokenCount": 1120
            }
        ],
        "promptTokenCount": 34,
        "promptTokensDetails": [
            {
                "modality": "TEXT",
                "tokenCount": 34
            }
        ],
        "thoughtsTokenCount": 221,
        "totalTokenCount": 1489
    }
}

修改于 2026-01-03 17:23:16

Variations（DALL·E 2）

gemini-3-pro-image-preview（原版格式-图片编辑）