diff --git a/5_django_backend/.env.example b/5_django_backend/.env.example
index f096df1..889345b 100644
--- a/5_django_backend/.env.example
+++ b/5_django_backend/.env.example
@@ -67,3 +67,5 @@ ABAP_INDEX_URL=http://127.0.0.1:8100
 LANGFUSE_HOST=
 LANGFUSE_PUBLIC_KEY=
 LANGFUSE_SECRET_KEY=
+# 1 이면 FabriX 호출 원문(프롬프트 전체·응답)도 별도 fabrix 트레이스로. 기본 0 — 질문 하나 = 행 하나 유지
+LANGFUSE_TRACE_GATEWAY=0
diff --git a/5_django_backend/apps/gateway/views.py b/5_django_backend/apps/gateway/views.py
index 9da7e05..386d456 100644
--- a/5_django_backend/apps/gateway/views.py
+++ b/5_django_backend/apps/gateway/views.py
@@ -97,7 +97,7 @@ class _Collect:
 
 
 def _observe(model_id: str, body: dict, col: _Collect, started: float, status: int, *, kinds: list[str]) -> None:
-    if not langfuse.enabled():
+    if not langfuse.enabled() or not settings.LANGFUSE.get("gateway"):
         return
     u = col.usage or {}
     tid = str(uuid.uuid4())
diff --git a/5_django_backend/config/settings.py b/5_django_backend/config/settings.py
index 76c0be5..0ee4da5 100644
--- a/5_django_backend/config/settings.py
+++ b/5_django_backend/config/settings.py
@@ -93,6 +93,8 @@ LANGFUSE = {
     "host": _env("LANGFUSE_HOST"),
     "public_key": _env("LANGFUSE_PUBLIC_KEY"),
     "secret_key": _env("LANGFUSE_SECRET_KEY"),
+    # 게이트웨이(FabriX 호출 원문) 트레이스는 기본 끔 — 켜면 질문 하나에 행이 2개(chat + fabrix) 잡힘
+    "gateway": _env_bool("LANGFUSE_TRACE_GATEWAY", False),
 }
 # 세션 컨텍스트 하드 한도 — usage.limit 로 프론트 게이지에 감
 CONTEXT_LIMIT_TOKENS = int(_env("CONTEXT_LIMIT_TOKENS", "128000") or "128000")
diff --git a/5_django_backend/tests/test_gateway.py b/5_django_backend/tests/test_gateway.py
index 737cb24..e2bd98d 100644
--- a/5_django_backend/tests/test_gateway.py
+++ b/5_django_backend/tests/test_gateway.py
@@ -126,7 +126,7 @@ async def test_401_retries_other_auth_shape_and_remembers(upstream):
     assert len(calls) == n + 1 and calls[-1].headers["x-openapi-token"] == "Bearer tok"
 
 
-@override_settings(FABRIX_ENV=FULL_ENV, LANGFUSE={"host": "http://lf.test", "public_key": "pk", "secret_key": "sk"})
+@override_settings(FABRIX_ENV=FULL_ENV, LANGFUSE={"host": "http://lf.test", "public_key": "pk", "secret_key": "sk", "gateway": True})
 async def test_stream_reports_generation_to_langfuse(upstream, monkeypatch):
     import asyncio
 
diff --git a/5_django_backend/tests/test_langfuse.py b/5_django_backend/tests/test_langfuse.py
index d522f06..6ebd329 100644
--- a/5_django_backend/tests/test_langfuse.py
+++ b/5_django_backend/tests/test_langfuse.py
@@ -10,7 +10,7 @@ from django.test import override_settings
 
 from apps.gateway import langfuse
 
-LF = {"host": "http://lf.test", "public_key": "pk-lf-a", "secret_key": "sk-lf-b"}
+LF = {"host": "http://lf.test", "public_key": "pk-lf-a", "secret_key": "sk-lf-b", "gateway": False}
 
 
 @pytest.fixture