diff --git a/genti-api/src/main/resources/application-common.yaml b/genti-api/src/main/resources/application-common.yaml
index 7fd845c9..d5672a2b 100644
--- a/genti-api/src/main/resources/application-common.yaml
+++ b/genti-api/src/main/resources/application-common.yaml
@@ -9,7 +9,7 @@ spring:
     open-in-view: false
 
 openai:
-  model: gpt-3.5-turbo
+  model: gpt-4o-mini
 
 schedule:
   delay:
diff --git a/genti-external/src/main/java/com/gt/genti/openai/dto/PromptAdvancementRequestDto.java b/genti-external/src/main/java/com/gt/genti/openai/dto/PromptAdvancementRequestDto.java
index 9fc59937..ecb337e7 100644
--- a/genti-external/src/main/java/com/gt/genti/openai/dto/PromptAdvancementRequestDto.java
+++ b/genti-external/src/main/java/com/gt/genti/openai/dto/PromptAdvancementRequestDto.java
@@ -35,7 +35,7 @@ public static class Message {
 	public static PromptAdvancementRequestDto of(String prompt) {
 
 		return PromptAdvancementRequestDto.builder()
-			.model("gpt-3.5-turbo")
+			.model("gpt-4o-mini")
 			.messages(getMessageList(prompt))
 			.temperature(1)
 			.maxTokens(300)