diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/AiGateWay/Impl/ThorClaude/Chats/ClaudiaChatCompletionsService.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/AiGateWay/Impl/ThorClaude/Chats/ClaudiaChatCompletionsService.cs
index 17432360..b9f00f21 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/AiGateWay/Impl/ThorClaude/Chats/ClaudiaChatCompletionsService.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/AiGateWay/Impl/ThorClaude/Chats/ClaudiaChatCompletionsService.cs
@@ -345,7 +345,7 @@ public sealed class ClaudiaChatCompletionsService(
         var response = await client.HttpRequestRaw(options.Endpoint.TrimEnd('/') + "/v1/messages", new
         {
             model = input.Model,
-            max_tokens = input.MaxTokens ?? 100000,
+            max_tokens = input.MaxTokens ?? 64000,
             stream = true,
             tool_choice,
             system = CreateMessage(input.Messages.Where(x => x.Role == "system").ToList(), options),