从第一张图片开始

import base64
import json
from pathlib import Path

image = Path("reference.png").read_bytes()  # 与脚本放在同一文件夹
payload = {
    "model": "grok-imagine-image-2.0",
    "prompt": "保留参考图中的主体和主要颜色，改成简洁白色背景",
    "images": [{
        "image_url": "data:image/png;base64," + base64.b64encode(image).decode()
    }],
    "aspect_ratio": "1:1",      # 调试时先固定画幅
    "resolution": "1k",        # 必须使用小写 1k / 2k
    "quality": "low",          # 正式编辑可调整到 medium
    "n": 1,                    # 输出张数，不是参考图数量
    "response_format": "b64_json"
}
Path("request.json").write_text(
    json.dumps(payload, ensure_ascii=False), encoding="utf-8"
)
print("request.json 已生成")

export YM2API_KEY="YOUR_GROUP_128_API_KEY"
python make_request.py
curl --fail-with-body --max-time 300 \
  "https://yyds.seqnode.com/v1/images/edits" \
  -A "YM2API/1.0" \
  -H "Authorization: Bearer $YM2API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @request.json \
  -D response.headers \
  -o response.json

$env:YM2API_KEY = "YOUR_GROUP_128_API_KEY"
python make_request.py
curl.exe --fail-with-body --max-time 300 "https://yyds.seqnode.com/v1/images/edits" -A "YM2API/1.0" -H "Authorization: Bearer $env:YM2API_KEY" -H "Content-Type: application/json" --data-binary "@request.json" -D response.headers -o response.json

import base64
import json
from pathlib import Path

response = json.loads(Path("response.json").read_text(encoding="utf-8"))
if response.get("error"):
    raise SystemExit(json.dumps(response["error"], ensure_ascii=False))
items = response.get("data", [])
if not items:
    raise SystemExit("没有图片数据，请检查响应和用量记录")
for i, item in enumerate(items, 1):
    if not item.get("b64_json"):
        raise SystemExit("没有 b64_json；请先检查 response_format 与原始响应")
    raw = base64.b64decode(item["b64_json"], validate=True)
    if raw.startswith(b"\x89PNG\r\n\x1a\n"):
        ext = "png"
    elif raw.startswith(b"\xff\xd8"):
        ext = "jpg"
    elif raw[:4] == b"RIFF" and raw[8:12] == b"WEBP":
        ext = "webp"
    else:
        raise SystemExit("返回内容不是已识别的图片编码")
    path = Path(f"result-{i}.{ext}")
    if path.exists():
        raise SystemExit(f"{path} 已存在，请先改名保存，避免覆盖")
    path.write_bytes(raw)
    print(f"已保存 {path}，{len(raw)} 字节")