diff --git a/backend/app/api/enterprise.py b/backend/app/api/enterprise.py
index e68484d8..e0d79bee 100644
--- a/backend/app/api/enterprise.py
+++ b/backend/app/api/enterprise.py
@@ -159,6 +159,7 @@ async def add_llm_model(
         api_key_encrypted=data.api_key,  # TODO: encrypt
         base_url=data.base_url,
         label=data.label,
+        temperature=data.temperature,
         max_tokens_per_day=data.max_tokens_per_day,
         enabled=data.enabled,
         supports_vision=data.supports_vision,
@@ -244,6 +245,8 @@ async def update_llm_model(
             model.enabled = data.enabled
         if hasattr(data, 'supports_vision') and data.supports_vision is not None:
             model.supports_vision = data.supports_vision
+        if hasattr(data, "temperature") and data.temperature is not None:
+            model.temperature = data.temperature
         if hasattr(data, 'max_output_tokens') and data.max_output_tokens is not None:
             model.max_output_tokens = data.max_output_tokens
         if hasattr(data, 'request_timeout') and data.request_timeout is not None:
diff --git a/backend/tests/test_enterprise_llm_model_api.py/test_enterprise_llm_model_api.py b/backend/tests/test_enterprise_llm_model_api.py/test_enterprise_llm_model_api.py
new file mode 100644
index 00000000..ba3754d0
--- /dev/null
+++ b/backend/tests/test_enterprise_llm_model_api.py/test_enterprise_llm_model_api.py
@@ -0,0 +1,119 @@
+import uuid
+from datetime import UTC, datetime
+from types import SimpleNamespace
+
+import pytest
+
+from app.api import enterprise as enterprise_api
+from app.models.llm import LLMModel
+from app.schemas.schemas import LLMModelCreate, LLMModelUpdate
+
+
+class DummyResult:
+    def __init__(self, value):
+        self._value = value
+
+    def scalar_one_or_none(self):
+        return self._value
+
+
+class RecordingDB:
+    def __init__(self, *, execute_results=None):
+        self.execute_results = list(execute_results or [])
+        self.added = []
+        self.flushed = False
+        self.committed = False
+        self.refreshed = []
+
+    def add(self, obj):
+        self.added.append(obj)
+
+    async def flush(self):
+        for obj in self.added:
+            if getattr(obj, "id", None) is None:
+                obj.id = uuid.uuid4()
+            if getattr(obj, "created_at", None) is None:
+                obj.created_at = datetime.now(UTC)
+        self.flushed = True
+
+    async def execute(self, _statement):
+        return DummyResult(self.execute_results.pop(0) if self.execute_results else None)
+
+    async def commit(self):
+        self.committed = True
+
+    async def refresh(self, obj):
+        if getattr(obj, "id", None) is None:
+            obj.id = uuid.uuid4()
+        if getattr(obj, "created_at", None) is None:
+            obj.created_at = datetime.now(UTC)
+        self.refreshed.append(obj)
+
+
+@pytest.mark.asyncio
+async def test_add_llm_model_persists_temperature_and_max_output_tokens():
+    tenant_id = uuid.uuid4()
+    db = RecordingDB()
+    current_user = SimpleNamespace(tenant_id=tenant_id)
+
+    created = await enterprise_api.add_llm_model(
+        data=LLMModelCreate(
+            provider="openai",
+            model="gpt-4.1",
+            api_key="sk-test",
+            base_url="https://api.example.com/v1",
+            label="Primary",
+            temperature=0.4,
+            max_tokens_per_day=1000,
+            enabled=True,
+            supports_vision=False,
+            max_output_tokens=4096,
+        ),
+        tenant_id=str(tenant_id),
+        current_user=current_user,
+        db=db,
+    )
+
+    assert db.flushed is True
+    assert len(db.added) == 1
+    model = db.added[0]
+    assert model.temperature == 0.4
+    assert model.max_output_tokens == 4096
+    assert created.temperature == 0.4
+    assert created.max_output_tokens == 4096
+
+
+@pytest.mark.asyncio
+async def test_update_llm_model_persists_temperature_and_max_output_tokens():
+    existing = LLMModel(
+        provider="openai",
+        model="gpt-4.1",
+        api_key_encrypted="sk-test",
+        base_url="https://api.example.com/v1",
+        label="Primary",
+        temperature=None,
+        max_tokens_per_day=1000,
+        enabled=True,
+        supports_vision=False,
+        max_output_tokens=None,
+    )
+    existing.id = uuid.uuid4()
+    existing.created_at = datetime.now(UTC)
+    db = RecordingDB(execute_results=[existing])
+
+    updated = await enterprise_api.update_llm_model(
+        model_id=existing.id,
+        data=LLMModelUpdate(
+            temperature=0.2,
+            max_output_tokens=2048,
+        ),
+        current_user=SimpleNamespace(),
+        db=db,
+    )
+
+    assert db.committed is True
+    assert db.refreshed == [existing]
+    assert existing.temperature == 0.2
+    assert existing.max_output_tokens == 2048
+    assert updated.temperature == 0.2
+    assert updated.max_output_tokens == 2048