diff --git a/libs/core/langchain_core/callbacks/base.py b/libs/core/langchain_core/callbacks/base.py
index 54a8fc36ca7..c9d0e656522 100644
--- a/libs/core/langchain_core/callbacks/base.py
+++ b/libs/core/langchain_core/callbacks/base.py
@@ -76,7 +76,7 @@ class LLMManagerMixin:
         For both chat models and non-chat models (legacy LLMs).
 
         Args:
-            token: The new token, or a list of content blocks for structured output.
+            token: The new token, or a list of content blocks.
             chunk: The new generated chunk, containing content and other information.
             run_id: The ID of the current run.
             parent_run_id: The ID of the parent run.
@@ -556,7 +556,7 @@ class AsyncCallbackHandler(BaseCallbackHandler):
         For both chat models and non-chat models (legacy LLMs).
 
         Args:
-            token: The new token, or a list of content blocks for structured output.
+            token: The new token, or a list of content blocks.
             chunk: The new generated chunk, containing content and other information.
             run_id: The ID of the current run.
             parent_run_id: The ID of the parent run.
diff --git a/libs/core/langchain_core/callbacks/manager.py b/libs/core/langchain_core/callbacks/manager.py
index 0b6dfd2e3e9..3620e898c08 100644
--- a/libs/core/langchain_core/callbacks/manager.py
+++ b/libs/core/langchain_core/callbacks/manager.py
@@ -686,7 +686,7 @@ class CallbackManagerForLLMRun(RunManager, LLMManagerMixin):
         """Run when LLM generates a new token.
 
         Args:
-            token: The new token, or a list of content blocks for structured output.
+            token: The new token, or a list of content blocks.
             chunk: The chunk.
             **kwargs: Additional keyword arguments.
 
@@ -784,7 +784,7 @@ class AsyncCallbackManagerForLLMRun(AsyncRunManager, LLMManagerMixin):
         """Run when LLM generates a new token.
 
         Args:
-            token: The new token, or a list of content blocks for structured output.
+            token: The new token, or a list of content blocks.
             chunk: The chunk.
             **kwargs: Additional keyword arguments.
 
diff --git a/libs/core/langchain_core/callbacks/streaming_stdout.py b/libs/core/langchain_core/callbacks/streaming_stdout.py
index 67187bf4dbd..6e1112c4e56 100644
--- a/libs/core/langchain_core/callbacks/streaming_stdout.py
+++ b/libs/core/langchain_core/callbacks/streaming_stdout.py
@@ -48,7 +48,7 @@ class StreamingStdOutCallbackHandler(BaseCallbackHandler):
         """Run on new LLM token. Only available when streaming is enabled.
 
         Args:
-            token: The new token, or a list of content blocks for structured output.
+            token: The new token, or a list of content blocks.
             **kwargs: Additional keyword arguments.
         """
         sys.stdout.write(str(token))
diff --git a/libs/core/langchain_core/tracers/core.py b/libs/core/langchain_core/tracers/core.py
index 2d8ee093f1d..03090df41ab 100644
--- a/libs/core/langchain_core/tracers/core.py
+++ b/libs/core/langchain_core/tracers/core.py
@@ -585,7 +585,7 @@ class _TracerCore(ABC):
 
         Args:
             run: The LLM run.
-            token: The new token, or a list of content blocks for structured output.
+            token: The new token, or a list of content blocks.
             chunk: Optional chunk.
         """
         _ = (run, token, chunk)