diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/OpenAi/Embeddings/ThorEmbeddingInput.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/OpenAi/Embeddings/ThorEmbeddingInput.cs
index 9d854ead..82838d23 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/OpenAi/Embeddings/ThorEmbeddingInput.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Dtos/OpenAi/Embeddings/ThorEmbeddingInput.cs
@@ -11,7 +11,7 @@ public sealed class ThorEmbeddingInput
     public object Input { get; set; }
 
     [JsonPropertyName("encoding_format")]
-    public string EncodingFormat { get; set; }
+    public string? EncodingFormat { get; set; }
 
     [JsonPropertyName("dimensions")]
     public int? Dimensions { get; set; }
diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/AiGateWayManager.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/AiGateWayManager.cs
index c451c43d..31eca5c8 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/AiGateWayManager.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/AiGateWayManager.cs
@@ -360,11 +360,7 @@ public class AiGateWayManager : DomainService
             //dto进行转换，支持多种格式
             if (input.Input is JsonElement str)
             {
-                if (str.ValueKind == JsonValueKind.String)
-                {
-                    embeddingCreateRequest.Input = str.ToString();
-                }
-                else if (str.ValueKind == JsonValueKind.Array)
+                if (str.ValueKind == JsonValueKind.Array)
                 {
                     var inputString = str.EnumerateArray().Select(x => x.ToString()).ToArray();
                     embeddingCreateRequest.InputAsList = inputString.ToList();
@@ -374,6 +370,10 @@ public class AiGateWayManager : DomainService
                     throw new Exception("Input，输入格式错误，非string或Array类型");
                 }
             }
+            else if (input.Input is string strInput)
+            {
+                embeddingCreateRequest.Input = strInput;
+            }
             else
             {
                 throw new Exception("Input，输入格式错误，未找到类型");
@@ -398,21 +398,22 @@ public class AiGateWayManager : DomainService
                 Usage = usage
             });
 
-            await _aiMessageManager.CreateUserMessageAsync(userId, sessionId,
-                new MessageInputDto
-                {
-                    Content = string.Empty,
-                    ModelId = input.Model,
-                    TokenUsage = usage,
-                });
-
-            await _aiMessageManager.CreateSystemMessageAsync(userId, sessionId,
-                new MessageInputDto
-                {
-                    Content = string.Empty,
-                    ModelId = input.Model,
-                    TokenUsage = usage
-                });
+            //知识库暂不使用message统计
+            // await _aiMessageManager.CreateUserMessageAsync(userId, sessionId,
+            //     new MessageInputDto
+            //     {
+            //         Content = string.Empty,
+            //         ModelId = input.Model,
+            //         TokenUsage = usage,
+            //     });
+            //
+            // await _aiMessageManager.CreateSystemMessageAsync(userId, sessionId,
+            //     new MessageInputDto
+            //     {
+            //         Content = string.Empty,
+            //         ModelId = input.Model,
+            //         TokenUsage = usage
+            //     });
 
             await _usageStatisticsManager.SetUsageAsync(userId, input.Model, usage);
         }