diff --git a/libs/partners/anthropic/tests/integration_tests/test_chat_models.py b/libs/partners/anthropic/tests/integration_tests/test_chat_models.py
index 8b64c1f940e..3debbad3fe5 100644
--- a/libs/partners/anthropic/tests/integration_tests/test_chat_models.py
+++ b/libs/partners/anthropic/tests/integration_tests/test_chat_models.py
@@ -149,10 +149,13 @@ async def test_async_stream_twice() -> None:
     model = ChatAnthropic(model_name=MODEL_NAME, stream_usage=False)
     async for token in model.astream("hi"):
         assert isinstance(token, AIMessageChunk)
+        assert token.usage_metadata is None
 
     model = ChatAnthropic(model_name=MODEL_NAME)  # type: ignore[call-arg]
+    assert model.stream_usage
     async for token in model.astream("hi", stream_usage=False):
         assert isinstance(token, AIMessageChunk)
+        assert token.usage_metadata is None
 
 
 async def test_abatch() -> None: