diff --git a/src/main/java/com/pictalk/group/controller/GroupController.java b/src/main/java/com/pictalk/group/controller/GroupController.java
index d96895b..3b24454 100644
--- a/src/main/java/com/pictalk/group/controller/GroupController.java
+++ b/src/main/java/com/pictalk/group/controller/GroupController.java
@@ -5,6 +5,7 @@
 import com.pictalk.group.domain.Group;
 import com.pictalk.group.dto.GroupRequestDto.CreateGroupRequest;
 import com.pictalk.group.dto.GroupRequestDto.UpdateGroupRequest;
+import com.pictalk.group.dto.GroupResponseDto.CreateGroupResponse;
 import com.pictalk.group.service.GroupService;
 import io.swagger.v3.oas.annotations.Operation;
 import lombok.RequiredArgsConstructor;
@@ -30,7 +31,10 @@ public CommonResponse<Object> createGroup(@AuthenticationPrincipal UserDetails a
                                               @RequestBody CreateGroupRequest createGroupRequest) {
         String userEmail = authenticatedPrincipal.getUsername();
         Group group = groupService.createGroup(createGroupRequest, userEmail);
-        return CommonResponse.of(SuccessStatus.GROUP_CREATED, null);
+
+        return CommonResponse.of(SuccessStatus.GROUP_CREATED, CreateGroupResponse.builder()
+                .groupId(group.getId())
+                .build());
     }
 
     @Operation(summary = "그룹 삭제")
@@ -47,5 +51,4 @@ public CommonResponse<Object> updateGroup(@PathVariable("group_id") Long groupId
         groupService.updateGroup(groupId, updateGroupRequest);
         return CommonResponse.of(SuccessStatus.GROUP_UPDATED, null);
     }
-
 }
diff --git a/src/main/java/com/pictalk/group/dto/GroupRequestDto.java b/src/main/java/com/pictalk/group/dto/GroupRequestDto.java
index d2caea2..88aeb51 100644
--- a/src/main/java/com/pictalk/group/dto/GroupRequestDto.java
+++ b/src/main/java/com/pictalk/group/dto/GroupRequestDto.java
@@ -25,5 +25,4 @@ public static class GroupReceiverDto {
         private String nickname;
         private String phoneNumber;
     }
-
 }
diff --git a/src/main/java/com/pictalk/group/dto/GroupResponseDto.java b/src/main/java/com/pictalk/group/dto/GroupResponseDto.java
index 1f8a2a7..2e30221 100644
--- a/src/main/java/com/pictalk/group/dto/GroupResponseDto.java
+++ b/src/main/java/com/pictalk/group/dto/GroupResponseDto.java
@@ -12,6 +12,12 @@ public static class SearchGroupResponse {
         private String groupName;
     }
 
+    @Getter
+    @Builder
+    public static class CreateGroupResponse {
+        private Long groupId;
+    }
+
     @Getter
     @Builder
     public static class GroupDetailResponse {
diff --git a/src/main/java/com/pictalk/image/service/AiImageService.java b/src/main/java/com/pictalk/image/service/AiImageService.java
index 3721a1f..50899de 100644
--- a/src/main/java/com/pictalk/image/service/AiImageService.java
+++ b/src/main/java/com/pictalk/image/service/AiImageService.java
@@ -11,7 +11,7 @@
 @RequiredArgsConstructor
 public class AiImageService {
 
-    private static final String PROMPT_TEMPLATE = "Create a high-quality, detailed image depicting the following situation: \\\"%s\\\". The image should evoke the atmosphere or feeling of \\\"%s\\\".";
+    private static final String PROMPT_TEMPLATE = "이 프롬프트는 한국어로 작성되었습니다. \"%s\" 상황을 묘사한 이미지로, \"%s\" 분위기를 담아주세요. 이미지 스타일은 사실적이고, 고해상도로 표현해주세요.";
 
     private final OpenAIImageClient openAIImageClient;