diff --git a/lib/crewai/src/crewai/llm.py b/lib/crewai/src/crewai/llm.py
index 105bc8988..8007a451e 100644
--- a/lib/crewai/src/crewai/llm.py
+++ b/lib/crewai/src/crewai/llm.py
@@ -1596,7 +1596,7 @@ class LLM(BaseLLM):
                 messages=params.get("messages"),
                 usage=usage_dict,
                 finish_reason=finish_reason,
-                response_id=response_id_last or response_id,
+                response_id=response_id_last,
             )
             return full_response
 
@@ -1622,7 +1622,7 @@ class LLM(BaseLLM):
                     messages=params.get("messages"),
                     usage=self._usage_to_dict(usage_info),
                     finish_reason=finish_reason,
-                    response_id=response_id_last or response_id,
+                    response_id=response_id_last,
                 )
                 return full_response
             raise
diff --git a/lib/crewai/src/crewai/llms/providers/gemini/completion.py b/lib/crewai/src/crewai/llms/providers/gemini/completion.py
index e91800610..da75fbcdc 100644
--- a/lib/crewai/src/crewai/llms/providers/gemini/completion.py
+++ b/lib/crewai/src/crewai/llms/providers/gemini/completion.py
@@ -1385,7 +1385,9 @@ class GeminiCompletion(BaseLLM):
         ``.name`` attribute (e.g. ``"STOP"``, ``"MAX_TOKENS"``); we forward
         it raw and let downstream telemetry map to the OTel GenAI enum.
         """
-        response_id = getattr(response, "response_id", None)
+        raw_response_id = getattr(response, "response_id", None)
+        response_id = raw_response_id if isinstance(raw_response_id, str) else None
+
         finish_reason: str | None = None
         candidates = getattr(response, "candidates", None)
         if candidates:
@@ -1394,9 +1396,8 @@ class GeminiCompletion(BaseLLM):
             except (IndexError, TypeError, KeyError):
                 candidate_finish = None
             if candidate_finish is not None:
-                finish_reason = getattr(candidate_finish, "name", None) or str(
-                    candidate_finish
-                )
+                name = getattr(candidate_finish, "name", None)
+                finish_reason = name if isinstance(name, str) else None
         return finish_reason, response_id
 
     @staticmethod