Google: Gemini 3 Pro Image (Nano Banana Pro)

google-ai.image-gen.gemini-3-pro-image

Generate or edit one image with Gemini 3 Pro Image at 1K, 2K or 4K on Google's own API, from a prompt and optional reference image URLs; the image returns inline as base64.

价格: $0.26/success按供应商原价
成功率: 98.4%近 30 天 · 3,179 次
延迟 p50: 22 秒p95 34 秒
最后验证: 2026年9月29日实测可用

POSThttps://toolswitch.dev/v1/tools/google-ai.image-gen.gemini-3-pro-image?fields=candidates%28content%28parts%28text%2CinlineData%29%29%2CfinishReason%29%2CusageMetadata%2CmodelVersion%2CresponseId%2CpromptFeedback

预览

在线试用供应商文档 ↗

可用平台额度调用
同步返回
读取公开数据

参数

参数	类型	必填	说明	示例
路径参数
`model`	字符串	必填	gemini-3-pro-image is the stable model; the -preview alias is the same model at the same price.	`gemini-3-pro-image`
查询参数
`fields`	字符串	可选	Google's partial-response mask. The example drops the multi-megabyte thoughtSignature and roughly halves the answer; keep usageMetadata in any mask you send.	`candidates(content(parts(text,inlineData)),finishReason),usageMetadata,modelVersion,responseId,promptFeedback`

路径参数
model字符串必填
gemini-3-pro-image is the stable model; the -preview alias is the same model at the same price.
示例：gemini-3-pro-image
查询参数
fields字符串可选
Google's partial-response mask. The example drops the multi-megabyte thoughtSignature and roughly halves the answer; keep usageMetadata in any mask you send.
示例：candidates(content(parts(text,inlineData)),finishReason),usageMetadata,modelVersion,responseId,promptFeedback

代码示例

将 $TOOLSWITCH_KEY 替换为你在控制台创建的密钥。

预览

curl -X POST 'https://toolswitch.dev/v1/tools/google-ai.image-gen.gemini-3-pro-image?fields=candidates%28content%28parts%28text%2CinlineData%29%29%2CfinishReason%29%2CusageMetadata%2CmodelVersion%2CresponseId%2CpromptFeedback' \
  -H "X-Toolswitch-Key: $TOOLSWITCH_KEY" \
  -H "Content-Type: application/json" \
  --data-raw '{"contents":[{"parts":[{"text":"A clean editorial illustration of a paper airplane."}]}],"generationConfig":{"imageConfig":{"imageSize":"1K","aspectRatio":"1:1"},"responseModalities":["IMAGE"]}}'

import os
import json
import requests

response = requests.request(
    "POST",
    "https://toolswitch.dev/v1/tools/google-ai.image-gen.gemini-3-pro-image?fields=candidates%28content%28parts%28text%2CinlineData%29%29%2CfinishReason%29%2CusageMetadata%2CmodelVersion%2CresponseId%2CpromptFeedback",
    headers={"X-Toolswitch-Key": os.environ["TOOLSWITCH_KEY"]},
    json=json.loads("{\"contents\":[{\"parts\":[{\"text\":\"A clean editorial illustration of a paper airplane.\"}]}],\"generationConfig\":{\"imageConfig\":{\"imageSize\":\"1K\",\"aspectRatio\":\"1:1\"},\"responseModalities\":[\"IMAGE\"]}}"),
)
response.raise_for_status()
print(response.text)

const response = await fetch("https://toolswitch.dev/v1/tools/google-ai.image-gen.gemini-3-pro-image?fields=candidates%28content%28parts%28text%2CinlineData%29%29%2CfinishReason%29%2CusageMetadata%2CmodelVersion%2CresponseId%2CpromptFeedback", {
  method: "POST",
  headers: {
    "X-Toolswitch-Key": process.env.TOOLSWITCH_KEY ?? "",
    "Content-Type": "application/json",
  },
  body: JSON.stringify(JSON.parse("{\"contents\":[{\"parts\":[{\"text\":\"A clean editorial illustration of a paper airplane.\"}]}],\"generationConfig\":{\"imageConfig\":{\"imageSize\":\"1K\",\"aspectRatio\":\"1:1\"},\"responseModalities\":[\"IMAGE\"]}}")),
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
console.log(await response.text());

网关接口为预览版，地址与鉴权方式可能调整。示例参数仅为样例数据。调用按 $0.26/success 计费，已含服务费。