diff --git a/sentry_sdk/integrations/langchain.py b/sentry_sdk/integrations/langchain.py
index 669cc56e87..651a3d7068 100644
--- a/sentry_sdk/integrations/langchain.py
+++ b/sentry_sdk/integrations/langchain.py
@@ -364,7 +364,7 @@ def on_tool_end(self, output, *, run_id, **kwargs):
             if not span_data:
                 return
             if should_send_default_pii() and self.include_prompts:
-                set_data_normalized(span_data.span, SPANDATA.AI_RESPONSES, [output])
+                set_data_normalized(span_data.span, SPANDATA.AI_RESPONSES, output)
             span_data.span.__exit__(None, None, None)
             del self.span_map[run_id]
 
diff --git a/sentry_sdk/integrations/openai.py b/sentry_sdk/integrations/openai.py
index e3d6d8e39d..462788ce19 100644
--- a/sentry_sdk/integrations/openai.py
+++ b/sentry_sdk/integrations/openai.py
@@ -78,9 +78,9 @@ def _calculate_chat_completion_usage(
     messages, response, span, streaming_message_responses=None
 ):
     # type: (Iterable[ChatCompletionMessageParam], Any, Span, Optional[List[str]]) -> None
-    completion_tokens = 0
-    prompt_tokens = 0
-    total_tokens = 0
+    completion_tokens = 0  # type: Optional[int]
+    prompt_tokens = 0  # type: Optional[int]
+    total_tokens = 0  # type: Optional[int]
     if hasattr(response, "usage"):
         if hasattr(response.usage, "completion_tokens") and isinstance(
             response.usage.completion_tokens, int
diff --git a/tests/integrations/langchain/test_langchain.py b/tests/integrations/langchain/test_langchain.py
index 14e01a9a15..b3ca452267 100644
--- a/tests/integrations/langchain/test_langchain.py
+++ b/tests/integrations/langchain/test_langchain.py
@@ -149,9 +149,9 @@ def test_langchain_agent(
             "You are very powerful"
             in chat_spans[0]["data"]["ai.input_messages"][0]["content"]
         )
-        assert "5" in chat_spans[0]["data"]["ai.responses"][0]
+        assert "5" in chat_spans[0]["data"]["ai.responses"]
         assert "word" in tool_exec_span["data"]["ai.input_messages"]
-        assert "5" in tool_exec_span["data"]["ai.responses"][0]
+        assert 5 == int(tool_exec_span["data"]["ai.responses"])
         assert (
             "You are very powerful"
             in chat_spans[1]["data"]["ai.input_messages"][0]["content"]