fix(proxy): list directly assigned team models in model access errors

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

litellm/proxy/auth/auth_checks.py

@@ -4659,7 +4659,7 @@ async def can_team_access_model(
                 return _can_object_call_model(
                     model=model,
                     llm_router=llm_router,
-                    models=models_from_groups,
+                    models=list(dict.fromkeys([*(team_object.models if team_object else []), *models_from_groups])),
                     team_model_aliases=team_model_aliases,
                     team_id=team_object.team_id if team_object else None,
                     object_type="team",

tests/test_litellm/proxy/auth/test_auth_checks.py

@@ -513,6 +513,31 @@ async def test_can_team_access_model_all_team_models_expands_router_models():
     assert exc_info.value.type == ProxyErrorTypes.team_model_access_denied
 
 
+@pytest.mark.asyncio
+async def test_can_team_access_model_error_lists_direct_and_access_group_models():
+    from litellm.proxy.auth.auth_checks import can_team_access_model
+
+    team_object = LiteLLM_TeamTable(
+        team_id="team-123",
+        models=["direct-model"],
+        access_group_ids=["ag-1"],
+    )
+
+    with patch(
+        "litellm.proxy.auth.auth_checks._get_models_from_access_groups",
+        new=AsyncMock(return_value=["group-model"]),
+    ):
+        assert await can_team_access_model("direct-model", team_object, None) is True
+        assert await can_team_access_model("group-model", team_object, None) is True
+
+        with pytest.raises(ProxyException) as exc_info:
+            await can_team_access_model("blocked-model", team_object, None)
+
+    assert exc_info.value.type == ProxyErrorTypes.team_model_access_denied
+    assert "direct-model" in exc_info.value.message
+    assert "group-model" in exc_info.value.message
+
+
 @pytest.mark.asyncio
 async def test_get_key_object_should_reconnect_once_on_db_connection_error():
     mock_prisma_client = MagicMock()