diff --git a/astrbot/core/provider/func_tool_manager.py b/astrbot/core/provider/func_tool_manager.py
index 354594d88..72180759a 100644
--- a/astrbot/core/provider/func_tool_manager.py
+++ b/astrbot/core/provider/func_tool_manager.py
@@ -339,7 +339,7 @@ class FuncCall:
             ]
             logger.info(f"已关闭 MCP 服务 {name}")
 
-    def get_func_desc_openai_style(self) -> list:
+    def get_func_desc_openai_style(self, omit_empty_parameter_field = True) -> list:
         """
         获得 OpenAI API 风格的**已经激活**的工具描述
         """
@@ -356,8 +356,10 @@ class FuncCall:
                     "description": f.description,
                 },
             }
-            if f.parameters.get("properties"):
-                func_["function"]["parameters"] = f.parameters
+            func_["function"]["parameters"] = f.parameters
+            if not f.parameters.get("properties") and omit_empty_parameter_field:
+                # 如果 properties 为空，并且 omit_empty_parameter_field 为 True，则删除 parameters 字段
+                del func_["function"]["parameters"]
             _l.append(func_)
         return _l
 
diff --git a/astrbot/core/provider/sources/openai_source.py b/astrbot/core/provider/sources/openai_source.py
index 8023d18d1..703572b87 100644
--- a/astrbot/core/provider/sources/openai_source.py
+++ b/astrbot/core/provider/sources/openai_source.py
@@ -87,7 +87,10 @@ class ProviderOpenAIOfficial(Provider):
 
     async def _query(self, payloads: dict, tools: FuncCall) -> LLMResponse:
         if tools:
-            tool_list = tools.get_func_desc_openai_style()
+            omit_empty_param_field = "grok" not in payloads.get("model", "").lower()
+            tool_list = tools.get_func_desc_openai_style(
+                omit_empty_parameter_field=omit_empty_param_field
+            )
             if tool_list:
                 payloads["tools"] = tool_list
 
@@ -121,7 +124,10 @@ class ProviderOpenAIOfficial(Provider):
     ) -> AsyncGenerator[LLMResponse, None]:
         """流式查询API，逐步返回结果"""
         if tools:
-            tool_list = tools.get_func_desc_openai_style()
+            omit_empty_param_field = "grok" not in payloads.get("model", "").lower()
+            tool_list = tools.get_func_desc_openai_style(
+                omit_empty_parameter_field=omit_empty_param_field
+            )
             if tool_list:
                 payloads["tools"] = tool_list