diff --git a/ahserver/filestorage.py b/ahserver/filestorage.py
index c324a0f..8d901d4 100644
--- a/ahserver/filestorage.py
+++ b/ahserver/filestorage.py
@@ -238,22 +238,6 @@ def webpath_to_base64(webpath):
 		b64 = base64.b64encode(f.read()).decode('utf-8')
 	return f'data:{mime};base64,{b64}'
 
-def build_kimi_content(prompt='', image_files=None, video_files=None):
-	"""构造 kimi 多模态 content 数组 JSON"""
-	import json
-	parts = []
-	if prompt:
-		parts.append({"type": "text", "text": prompt})
-	for f in (image_files or []):
-		b64 = webpath_to_base64(f)
-		if b64:
-			parts.append({"type": "image_url", "image_url": b64})
-	for f in (video_files or []):
-		b64 = webpath_to_base64(f)
-		if b64:
-			parts.append({"type": "video_url", "video_url": b64})
-	return json.dumps(parts, ensure_ascii=False)
-
 async def base642file(b64str):
 	filename = getFilenameFromBase64(b64str)
 	if ',' in b64str:
@@ -299,6 +283,5 @@ async def data2qrpath(data, logo=None):
 
 from .serverenv import ServerEnv
 ServerEnv().webpath_to_base64 = webpath_to_base64
-ServerEnv().build_kimi_content = build_kimi_content