图像与视频官方

gpt-image-2.5-sunburst

Model ID:gpt-image-2.5-sunburst-1K

旗舰生图模型效果炸裂

Context window	—
Billing method	Per Use (CNY / Use)
Unit Price (CNY / Time)	一口价 ¥0 / 1K ¥0.15 / 2K ¥0.2 / 4K ¥0.3
Multiplier	1.00x

Prices by channel

Channel	Unit Price (CNY / Time)	Multiplier
image2x	¥0	1.00x
image2x	¥0.15	1.00x
image2x	¥0.2	1.00x
image2x	¥0.3	1.00x

Call example

This model belongs to the图像与视频group, calling protocol:网关媒体生成接口（图片按次、视频按秒计费）Enter your API Key to use; groups determine the entry point and cannot be mixed (e.g., models in the Gemini group cannot use /v1/messages).

Request examplecurl

curl https://www.relay-api.com/v1/images/generations \
  -H "Authorization: Bearer sk-你的Key" \
  -H "content-type: application/json" \
  -d '{
    "model": "gpt-image-2.5-sunburst-1K",
    "prompt": "一只在草地上奔跑的柯基，清晨逆光",
    "n": 1,
    "size": "1024x1024"
  }'

# 图生图 / 改图：参考图走 base64（data URL 或裸 base64 都收，最多 4 张）
# curl https://www.relay-api.com/v1/images/generations \
#   -H "Authorization: Bearer sk-你的Key" \
#   -H "content-type: application/json" \
#   -d '{"model":"gpt-image-2.5-sunburst-1K","prompt":"把背景换成雪景","image":["data:image/png;base64,<BASE64>"]}'

响应：网关把上游原始 JSON 透传回来（sk- 密钥不加包装；浏览器会话加 {code,data} 包装）——图片为 images 响应（url / b64_json），视频为 generateContent 响应。

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