图片异步生成

curl -X POST "https://xxx.wengaocloud.com/v2/images/generations" \
  -H "Authorization: Bearer $AI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-image-2-async",
    "prompt": "一张极简风格的云端工作站海报，蓝白配色，科技感",
    "size": "1:1"
  }'

curl -X POST "https://xxx.wengaocloud.com/v2/images/generations" \
  -H "Authorization: Bearer $AI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nanobanana2-image",
    "prompt": "A cinematic city skyline at sunset",
    "size": "16:9",
    "resolution": "2K",
    "urls": ["https://example.com/reference.png"]
  }'

{
  "id": "imgtask_7f8c2a1c9e4d4bb7b3b7b0d9f6a1c2e3",
  "object": "image.generation.task",
  "model": "gpt-image-2-async",
  "status": "queued",
  "created_at": 1779860000
}

curl "https://xxx.wengaocloud.com/v2/images/generations/imgtask_7f8c2a1c9e4d4bb7b3b7b0d9f6a1c2e3" \
  -H "Authorization: Bearer $AI_API_KEY"

{
  "id": "imgtask_7f8c2a1c9e4d4bb7b3b7b0d9f6a1c2e3",
  "object": "image.generation.task",
  "model": "gpt-image-2-async",
  "status": "running",
  "created_at": 1779860000,
  "completed_at": null
}

{
  "id": "imgtask_7f8c2a1c9e4d4bb7b3b7b0d9f6a1c2e3",
  "object": "image.generation.task",
  "model": "gpt-image-2-async",
  "status": "succeeded",
  "created_at": 1779860000,
  "completed_at": 1779860032,
  "result": {
    "images": [
      {
        "url": "https://cdn.wengaocloud.com/images/ai/example.png"
      }
    ]
  }
}

{
  "id": "imgtask_7f8c2a1c9e4d4bb7b3b7b0d9f6a1c2e3",
  "object": "image.generation.task",
  "model": "gpt-image-2-async",
  "status": "failed",
  "created_at": 1779860000,
  "completed_at": 1779860032,
  "error": {
    "code": "image_generation_failed",
    "message": "图片生成失败"
  }
}