diff --git a/apps/application/serializers/chat_serializers.py b/apps/application/serializers/chat_serializers.py
index f3710fe00..f7bb11f24 100644
--- a/apps/application/serializers/chat_serializers.py
+++ b/apps/application/serializers/chat_serializers.py
@@ -38,7 +38,7 @@ from common.util.field_message import ErrMessage
 from common.util.file_util import get_file_content
 from common.util.lock import try_lock, un_lock
 from dataset.models import Document, Problem, Paragraph, ProblemParagraphMapping
-from dataset.serializers.common_serializers import get_embedding_model_id_by_dataset_id
+from dataset.serializers.common_serializers import get_embedding_model_id_by_dataset_id, update_document_char_length
 from dataset.serializers.paragraph_serializers import ParagraphSerializers
 from embedding.task import embedding_by_paragraph, embedding_by_paragraph_list
 from setting.models import Model
@@ -620,6 +620,7 @@ class ChatRecordSerializer(serializers.Serializer):
             # 插入关联问题
             problem_paragraph_mapping.save()
             chat_record.improve_paragraph_id_list.append(paragraph.id)
+            update_document_char_length(document_id)
             # 添加标注
             chat_record.save()
             return ChatRecordSerializerModel(chat_record).data, paragraph.id, dataset_id
@@ -718,5 +719,6 @@ class ChatRecordSerializer(serializers.Serializer):
 
             # 批量保存聊天记录
             ChatRecord.objects.bulk_update(chat_record_list, ['improve_paragraph_id_list'])
+            update_document_char_length(document_id)
 
             return paragraph_ids, dataset_id
diff --git a/ui/src/components/ai-chat/ExecutionDetailDialog.vue b/ui/src/components/ai-chat/ExecutionDetailDialog.vue
index dd403b15d..4c71b3232 100644
--- a/ui/src/components/ai-chat/ExecutionDetailDialog.vue
+++ b/ui/src/components/ai-chat/ExecutionDetailDialog.vue
@@ -175,7 +175,7 @@
                     </div>
                     <div class="card-never border-r-4 mt-8">
                       <h5 class="p-8-12">
-                        {{ item.type == WorkflowType.Application ? '应用回答' : 'AI 回答' }}
+                        {{ item.type == WorkflowType.Application ? '参数输出' : 'AI 回答' }}
                       </h5>
                       <div class="p-8-12 border-t-dashed lighter">
                         <MdPreview