diff --git a/src/renderer/src/store/thunk/messageThunk.ts b/src/renderer/src/store/thunk/messageThunk.ts
index 6678ae87d9..79a2c79eea 100644
--- a/src/renderer/src/store/thunk/messageThunk.ts
+++ b/src/renderer/src/store/thunk/messageThunk.ts
@@ -1164,16 +1164,31 @@ export const resendMessageThunk =
       const messagesToUpdateInRedux: { topicId: string; messageId: string; updates: Partial<Message> }[] = []
 
       // 先处理已有的重传
-      for (const originalMsg of assistantMessagesToReset) {
+      if (assistantMessagesToReset.length === 1 && !userMessageToResend?.mentions?.length) {
+        // 单条消息无mention时使用助手模型
+        const originalMsg = assistantMessagesToReset[0]
         const blockIdsToDelete = [...(originalMsg.blocks || [])]
         const resetMsg = resetAssistantMessage(originalMsg, {
           status: AssistantMessageStatus.PENDING,
-          updatedAt: new Date().toISOString()
+          updatedAt: new Date().toISOString(),
+          model: assistant.model
         })
 
         resetDataList.push(resetMsg)
         allBlockIdsToDelete.push(...blockIdsToDelete)
         messagesToUpdateInRedux.push({ topicId, messageId: resetMsg.id, updates: resetMsg })
+      } else {
+        for (const originalMsg of assistantMessagesToReset) {
+          const blockIdsToDelete = [...(originalMsg.blocks || [])]
+          const resetMsg = resetAssistantMessage(originalMsg, {
+            status: AssistantMessageStatus.PENDING,
+            updatedAt: new Date().toISOString()
+          })
+
+          resetDataList.push(resetMsg)
+          allBlockIdsToDelete.push(...blockIdsToDelete)
+          messagesToUpdateInRedux.push({ topicId, messageId: resetMsg.id, updates: resetMsg })
+        }
       }
 
       // 再处理新的重传（用户消息提及，但是现有助手消息中不存在提及的模型）