diff --git a/src/LLMService.Shared/Models/AIFeatureModel.cs b/src/LLMService.Shared/Models/AIFeatureModel.cs
index 457dc8d..6496aee 100644
--- a/src/LLMService.Shared/Models/AIFeatureModel.cs
+++ b/src/LLMService.Shared/Models/AIFeatureModel.cs
@@ -43,11 +43,11 @@ public class AIFeatureModel
         /// </para>
         /// </summary>
         /// <value>
-        /// 默认 1.5
+        /// 默认 1.0
         /// </value>
-        /// <example>1.5</example>
+        /// <example>1.0</example>
         [JsonPropertyName("penalty_score")]
-        public float PenaltyScore { get; set; } = 1.5F;
+        public float PenaltyScore { get; set; } = 1.0F;
         /// <summary>
         /// 是否以流式接口的形式返回数据，默认false
         /// </summary>
diff --git a/src/LLMService.Shared/Models/BaiduWenxinChatResponse.cs b/src/LLMService.Shared/Models/BaiduWenxinChatResponse.cs
index b3b508c..d95477a 100644
--- a/src/LLMService.Shared/Models/BaiduWenxinChatResponse.cs
+++ b/src/LLMService.Shared/Models/BaiduWenxinChatResponse.cs
@@ -4,7 +4,7 @@
 namespace LLMService.Shared.Models
 {
     /// <summary>
-    /// 
+    /// baidu API response model
     /// </summary>
     public class BaiduWenxinChatResponse /*: IServerSentEventData*/
     {
@@ -91,7 +91,7 @@ public class BaiduWenxinChatResponse /*: IServerSentEventData*/
     }
 
     /// <summary>
-    /// 
+    /// baidu API response wrapper
     /// </summary>
     /// <seealso cref="BaiduWenxinChatResponse" />
     public class ChatApiResponse : BaiduWenxinChatResponse
@@ -114,33 +114,9 @@ public class ChatApiResponse : BaiduWenxinChatResponse
 
     }
 
-    /// <summary>
-    /// 
-    /// </summary>
-    public class ResponseStream<T>
-    {
-        /// <summary>
-        /// Gets or sets the data.
-        /// </summary>
-        /// <value>
-        /// The data.
-        /// </value>
-        [JsonPropertyName("data")]
-        public T Data { get; set; }
-
-        /// <summary>
-        /// Unfolds this instance.
-        /// </summary>
-        /// <returns></returns>
-        public T Unfold()
-        {
-            return Data;
-        }
-    }
-
 
     /// <summary>
-    /// 
+    /// baidu API token usage per request.
     /// </summary>
     public class BaiduWenxinUsage
     {
@@ -169,4 +145,28 @@ public class BaiduWenxinUsage
         [JsonPropertyName("total_tokens")]
         public int TotalTokens {  get; set; }
     }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public class ResponseStream<T>
+    {
+        /// <summary>
+        /// Gets or sets the data.
+        /// </summary>
+        /// <value>
+        /// The data.
+        /// </value>
+        [JsonPropertyName("data")]
+        public T Data { get; set; }
+
+        /// <summary>
+        /// Unfolds this instance.
+        /// </summary>
+        /// <returns></returns>
+        public T Unfold()
+        {
+            return Data;
+        }
+    }
 }
diff --git a/src/LLMServiceHub/Startup.cs b/src/LLMServiceHub/Startup.cs
index 045dc90..93152aa 100644
--- a/src/LLMServiceHub/Startup.cs
+++ b/src/LLMServiceHub/Startup.cs
@@ -397,7 +397,7 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env, AppSetti
                 }
 
                 option.RoutePrefix = "api-docs";
-                option.DocumentTitle = "幸福泉百度千帆大模型 API";
+                option.DocumentTitle = "百度千帆大模型 API";
 
                 option.DefaultModelRendering(Swashbuckle.AspNetCore.SwaggerUI.ModelRendering.Model);
                 option.DefaultModelExpandDepth(4);