diff --git a/src/schemas/flux2_gen_img.py b/src/schemas/flux2_gen_img.py
index 884142b..e87336b 100644
--- a/src/schemas/flux2_gen_img.py
+++ b/src/schemas/flux2_gen_img.py
@@ -4,11 +4,11 @@ from pydantic import BaseModel, Field
 
 
 class Flux2_Gen_Img_Model(BaseModel):
-    input_image_paths: Optional[List[str]] = Field(..., description="输入图片路径列表")
+    bucket_name: str = Field(..., description="OSS桶名，不传则为None")
+    object_name: str = Field(..., description="OSS对象名（文件路径），不传则为None")
+    input_image_paths: Optional[List[str]] = Field(default=[], description="输入图片路径列表")
     width: Optional[int] = Field(default=512, description="图片宽度，默认512像素")
     height: Optional[int] = Field(default=512, description="图片高度，默认512像素")
-    bucket_name: Optional[str] = Field(default="", description="OSS桶名，不传则为None")
-    object_name: Optional[str] = Field(default="", description="OSS对象名（文件路径），不传则为None")
     prompt: Optional[str] = Field(default="", description="文本提示词，用于模型推理等场景")
     steps: Optional[int] = Field(default=4, description="推理步数，控制模型生成过程的迭代次数")
     guidance: Optional[float] = Field(default=4.0, description="引导系数，调节提示词对生成结果的影响程度")