diff --git a/agent-image-t2i.py b/agent-image-t2i.py
index 0272fa7..08a7e40 100644
--- a/agent-image-t2i.py
+++ b/agent-image-t2i.py
@@ -43,6 +43,7 @@ class ImageGenerationRequest(BaseModel):
     model: str | None = Field(default=None, description="覆盖提供方默认模型")
     size: str = Field(default="1024x1024", description="图片尺寸")
     n: int = Field(default=1, ge=1, le=10, description="生成数量")
+    profile_name: str = Field(pattern=r"^[\w-]+$", description="调用方标识（必填），图片会保存到 output/<profile_name>/ 下")
 
 
 class GeneratedImage(BaseModel):
@@ -107,6 +108,8 @@ def generate_images(request: ImageGenerationRequest):
         raise HTTPException(status_code=500, detail=f"未配置环境变量 {config['api_key_env']}")
 
     model = request.model or config["model"]
+    profile_dir = OUTPUT_DIR / request.profile_name
+    profile_dir.mkdir(parents=True, exist_ok=True)
     client = OpenAI(base_url=API_BASE_URL, api_key=api_key, timeout=120.0, max_retries=0)
     response = generate_with_retry(
         client,
@@ -129,8 +132,8 @@ def generate_images(request: ImageGenerationRequest):
             raise HTTPException(status_code=502, detail="上游 Base64 图片数据格式无效") from e
 
         filename = f"{model}-{uuid4().hex}.png"
-        (OUTPUT_DIR / filename).write_bytes(raw)
-        images.append(GeneratedImage(filename=filename, url=f"/output/{filename}", bytes=len(raw)))
+        (profile_dir / filename).write_bytes(raw)
+        images.append(GeneratedImage(filename=filename, url=f"/output/{request.profile_name}/{filename}", bytes=len(raw)))
 
     return ImageGenerationResponse(provider=request.provider, model=model, images=images)