请求头中增加如下参数
相关模型 支持此参数
nano-banana-2
nano-banana-pro
nano-banana-2
nano-banana
gemini-3-pro-image-preview
gemini-2.5-flash-image-preview

"imageConfig": {"aspectRatio": "1:1", "imageSize": "4K"}"

NewAPi对接的话可以直接覆盖请求头

{
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0",
"Authorization": "Bearer{api_key}",
"imageConfig": {"aspectRatio": "1:1", "imageSize": "4K"}"
}