diff --git a/app_chatgpt/models/mail_channel.py b/app_chatgpt/models/mail_channel.py
index 3dcd6b93..2f7c21db 100644
--- a/app_chatgpt/models/mail_channel.py
+++ b/app_chatgpt/models/mail_channel.py
@@ -165,7 +165,10 @@ class Channel(models.Model):
             sync_config = self.env['ir.config_parameter'].sudo().get_param('app_chatgpt.openai_sync_config')
             openai.api_key = api_key
             # 非4版本，取0次。其它取3 次历史
-            chat_count = 0 if '4' in ai.ai_model else 3
+            if '4' in ai.ai_model:
+                chat_count = 1 if self.chat_count > 0 else 0
+            else:
+                chat_count = self.chat_count
             if author_id != answer_id.id and self.channel_type == 'chat':
                 # 私聊
                 _logger.info(f'私聊:author_id:{author_id},partner_chatgpt.id:{answer_id.id}')