diff --git a/app/core/config.py b/app/core/config.py
index 5e336f3..1bf7e00 100644
--- a/app/core/config.py
+++ b/app/core/config.py
@@ -5,14 +5,11 @@
 load_dotenv()
 
 redis_url = os.getenv("REDIS_SERVER_URL")
-bucket_name = os.getenv("BUCKET_NAME")
-s3_region = os.getenv("S3_REGION")
-
+openai_key = os.getenv("OPENAI_API_KEY")
 
 class Settings(BaseSettings):
     REDIS_URL: str = redis_url
-    S3_REGION: str = bucket_name
-    BUCKET_NAME: str = s3_region
+    OPENAI_KEY: str = openai_key
 
     STREAM_JOB: str = "image.jobs" # SpringBoot에서 job 발행 (FastAPI에서 listen)
     STREAM_RESULT: str = "image.results"  # FastAPI에서 결과 발행 (SpringBoot에서 listen)
diff --git a/app/services/openai_service.py b/app/services/openai_service.py
new file mode 100644
index 0000000..7455f19
--- /dev/null
+++ b/app/services/openai_service.py
@@ -0,0 +1,66 @@
+from app.core.config import settings
+from openai import OpenAI
+import json
+
+client = OpenAI(api_key=settings.OPENAI_KEY)
+
+class PregnancySafetyChecker:
+    def __init__(self, client: OpenAI):
+        self.client = client
+
+    """
+    - isSafe: 안전하면 1, 안전하지 않으면 0
+    - description: 복용 가능 여부 설명
+    """
+    def ask_chatgpt_about_pregnancy_safety(self, pill_name: str) -> tuple[str, int]:
+        prompt = f"""
+        약 이름: {pill_name}
+        질문: 이 약은 임산부가 복용해도 안전한가요? 복용 가능 여부와 주의사항을 알려주세요.
+        description 안에는 문장마다 \\n 을 적용하세요.
+        결과를 JSON 형식으로 정확히 반환하세요. 설명이나 다른 텍스트를 절대 덧붙이지 마세요.
+        스키마:
+        {{
+            "description": "복용 가능 여부 및 주의사항에 대한 설명",
+            "isSafe": 1 또는 0
+        }}
+        """
+
+        response = self.client.chat.completions.create(
+            model="gpt-4o-mini",
+            messages=[{"role": "user", "content": prompt}],
+            temperature=0,
+            max_tokens=600,
+            response_format={"type": "json_object"}
+        )
+        print("GPT Asking 성공...")
+        raw = response.choices[0].message.content.strip()
+
+        try:
+            data = json.loads(raw)
+        except json.JSONDecodeError:
+            start = raw.find("{")
+            end = raw.rfind("}")
+            if start != -1 and end != -1 and start < end:
+                data = json.loads(raw[start:end+1])
+            else:
+                # 디버깅
+                preview = raw[:200].replace("\n", "\\n")
+                raise ValueError(f"응답이 유효한 JSON이 아닙니다. preview='{preview}'")
+
+        description = data.get("description")
+        isSafe = data.get("isSafe")
+
+        if isinstance(isSafe, bool):
+            isSafe = 1 if isSafe else 0
+        elif isinstance(isSafe, str):
+            isSafe = 1 if isSafe.strip() in {"1", "true", "True"} else 0
+        elif not isinstance(isSafe, int):
+            isSafe = 0
+
+        if not isinstance(description, str):
+            description = ""  # 안전장치
+
+        return description, int(isSafe)
+
+
+checker = PregnancySafetyChecker(client)
\ No newline at end of file
diff --git a/app/services/s3_service.py b/app/services/s3_service.py
index 8cf7719..1e8debb 100644
--- a/app/services/s3_service.py
+++ b/app/services/s3_service.py
@@ -1,27 +1,15 @@
 
-import boto3
-from botocore.config import Config as BotoConfig
 import requests
 from io import BytesIO
 
-from app.core.config import settings
-
 class S3Service:
     def __init__(self):
-        self.client = boto3.client(
-            "s3",
-            region_name=settings.S3_REGION,
-            config=BotoConfig(
-                retries={"max_attempts": 5, "mode": "standard"},
-                read_timeout=30,
-                connect_timeout=5,
-            ),
-        )
+        pass
 
     def download_file_from_presigned_url(self, presigned_url: str) -> BytesIO:
         response = requests.get(presigned_url)
         response.raise_for_status()
-
-        return BytesIO(response.content) # response 안의 content Stream으로 처리
+        # response의 content를 BytesIO로 감싸 반환
+        return BytesIO(response.content)
 
 s3_service = S3Service()
diff --git a/app/worker/tasks.py b/app/worker/tasks.py
index 3a22e33..63dfdc5 100644
--- a/app/worker/tasks.py
+++ b/app/worker/tasks.py
@@ -5,6 +5,7 @@
 
 from app.core.config import settings
 from app.schemas.job import ImageJob, JobResult
+from app.services.openai_service import checker
 from app.services.predictor_service import predictor_service
 from app.services.s3_service import s3_service
 
@@ -27,11 +28,8 @@ async def process_image_scan(job: ImageJob, redis_client: redis.Redis):
             predictor_service.predict,
             stream_file
         )
-
-        # TODO: ChatGPT에 요청 결과 출력
-
-        isSafe = 0
-        description = "일단은 테스트입니다. 추후에 GPT 부분 추가할 예정"
+        print(f"[task] Start Asking GPT for job_id={correlationId}")
+        description, isSafe = checker.ask_chatgpt_about_pregnancy_safety(pillName)
         finishedAt = datetime.utcnow().isoformat()
 
         result = JobResult(
diff --git a/requirements.txt b/requirements.txt
index 5cf02b2..d06a886 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,9 +3,9 @@ uvicorn
 redis
 pydantic
 pydantic-settings
-boto3
 requests
 torch==2.8.0
 torchvision==0.23.0
 Pillow==11.3.0
-dotenv
\ No newline at end of file
+dotenv
+openai
\ No newline at end of file