diff --git a/model-providers/model_providers.yaml b/model-providers/model_providers.yaml
index 86171fb1..d88736b3 100644
--- a/model-providers/model_providers.yaml
+++ b/model-providers/model_providers.yaml
@@ -24,6 +24,6 @@ xinference:
       model_type: 'llm'
       model_credentials:
         server_url: 'http://127.0.0.1:9997/'
-        model_uid: 'gpt-3.5-turbo'
+        model_uid: 'chatglm3-6b'
 
 
diff --git a/model-providers/model_providers/bootstrap_web/openai_bootstrap_web.py b/model-providers/model_providers/bootstrap_web/openai_bootstrap_web.py
index 31b2cb77..9e20d7aa 100644
--- a/model-providers/model_providers/bootstrap_web/openai_bootstrap_web.py
+++ b/model-providers/model_providers/bootstrap_web/openai_bootstrap_web.py
@@ -398,14 +398,16 @@ class RESTFulOpenAIBootstrapBaseWeb(OpenAIBootstrapBaseWeb):
             _convert_to_message(message) for message in chat_request.messages
         ]
 
-        tools = [
-            PromptMessageTool(
-                name=f.function.name,
-                description=f.function.description,
-                parameters=f.function.parameters,
-            )
-            for f in chat_request.tools
-        ]
+        tools = []
+        if chat_request.tools:
+            tools = [
+                PromptMessageTool(
+                    name=f.function.name,
+                    description=f.function.description,
+                    parameters=f.function.parameters,
+                )
+                for f in chat_request.tools
+            ]
         if chat_request.functions:
             tools.extend(
                 [
diff --git a/model-providers/model_providers/core/bootstrap/openai_protocol.py b/model-providers/model_providers/core/bootstrap/openai_protocol.py
index ec5ddc3f..2945c0ba 100644
--- a/model-providers/model_providers/core/bootstrap/openai_protocol.py
+++ b/model-providers/model_providers/core/bootstrap/openai_protocol.py
@@ -140,11 +140,11 @@ class ChatCompletionRequest(BaseModel):
     tools: Optional[List[FunctionAvailable]] = None
     functions: Optional[List[FunctionDefinition]] = None
     function_call: Optional[FunctionCallDefinition] = None
-    temperature: Optional[float] = None
-    top_p: Optional[float] = None
+    temperature: Optional[float] = 0.75
+    top_p: Optional[float] = 0.75
     top_k: Optional[float] = None
     n: int = 1
-    max_tokens: Optional[int] = None
+    max_tokens: Optional[int] = 256
     stop: Optional[list[str]] = None
     stream: Optional[bool] = False