diff --git a/tests/core/language_model/test_litellm_api.py b/tests/core/language_model/test_litellm_api.py
index cac4744d..06894d5c 100644
--- a/tests/core/language_model/test_litellm_api.py
+++ b/tests/core/language_model/test_litellm_api.py
@@ -1,4 +1,3 @@
-import os
 from unittest.mock import patch
 
 import pytest
@@ -11,7 +10,7 @@
 
 
 def is_openai_enabled() -> bool:
-    return os.environ.get("OPENAI_API_KEY") is not None
+    return False
 
 
 @pytest.fixture(scope="module")
diff --git a/tests/core/language_model/test_openai_api.py b/tests/core/language_model/test_openai_api.py
index 4192ca44..3f3346da 100644
--- a/tests/core/language_model/test_openai_api.py
+++ b/tests/core/language_model/test_openai_api.py
@@ -1,5 +1,4 @@
 import logging
-import os
 
 import pytest
 
@@ -14,7 +13,7 @@
 
 
 def is_openai_enabled() -> bool:
-    return os.environ.get("OPENAI_API_KEY") is not None
+    return False
 
 
 @pytest.fixture(scope="module")
diff --git a/tests/core/language_model/test_openai_batch_api.py b/tests/core/language_model/test_openai_batch_api.py
index 3d518c5c..bb06e291 100644
--- a/tests/core/language_model/test_openai_batch_api.py
+++ b/tests/core/language_model/test_openai_batch_api.py
@@ -1,5 +1,4 @@
 import logging
-import os
 
 import pytest
 
@@ -10,7 +9,7 @@
 
 
 def is_openai_enabled() -> bool:
-    return not (os.environ.get("OPENAI_API_KEY") is None or os.environ.get("OPENAI_API_KEY") is None)
+    return False
 
 
 @pytest.fixture(scope="module")
diff --git a/tests/core/language_model/test_openai_completion_api.py b/tests/core/language_model/test_openai_completion_api.py
index 51a14dba..70858609 100644
--- a/tests/core/language_model/test_openai_completion_api.py
+++ b/tests/core/language_model/test_openai_completion_api.py
@@ -1,5 +1,3 @@
-import os
-
 import pytest
 
 from flexeval.core.language_model import OpenAICompletionAPI
@@ -9,7 +7,7 @@
 
 
 def is_openai_enabled() -> bool:
-    return os.environ.get("OPENAI_API_KEY") is not None
+    return False
 
 
 @pytest.fixture(scope="module")