diff --git a/src/main/java/com/ai/da/service/impl/ChatRobotServiceImpl.java b/src/main/java/com/ai/da/service/impl/ChatRobotServiceImpl.java
index 1300292f..650deb4c 100644
--- a/src/main/java/com/ai/da/service/impl/ChatRobotServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/ChatRobotServiceImpl.java
@@ -337,6 +337,7 @@ public class ChatRobotServiceImpl implements ChatRobotService {
             Account account = accountMapper.selectById(userId);
             BigDecimal totalCost = BigDecimal.valueOf(5).subtract(chatRobots.get(0).getTotalCost());
             if (account.getIsTrial() == 1) {
+                totalCost = BigDecimal.valueOf(0.1).subtract(chatRobots.get(0).getTotalCost());
                 return totalCost.divide(BigDecimal.valueOf(0.1), 4, RoundingMode.HALF_UP);
             }else {
                 return totalCost.divide(BigDecimal.valueOf(5), 4, RoundingMode.HALF_UP);