diff --git a/rag-service/src/main/java/com/balex/rag/service/impl/ChatEntryServiceImpl.java b/rag-service/src/main/java/com/balex/rag/service/impl/ChatEntryServiceImpl.java
index d8be7d1..b0a243b 100644
--- a/rag-service/src/main/java/com/balex/rag/service/impl/ChatEntryServiceImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/ChatEntryServiceImpl.java
@@ -64,6 +64,7 @@ public class ChatEntryServiceImpl implements ChatEntryService {
                 .user(content)
                 .advisors(a -> a.param(ChatMemory.CONVERSATION_ID, String.valueOf(chatId)))
                 .options(OpenAiChatOptions.builder()
+                        .model(ragDefaults.model())
                         .topP(topP)
                         .build())
                 .call()