diff --git a/langfuse/api/dataset_run_items/client.py b/langfuse/api/dataset_run_items/client.py
index cbafacc67..aee820da8 100644
--- a/langfuse/api/dataset_run_items/client.py
+++ b/langfuse/api/dataset_run_items/client.py
@@ -38,6 +38,7 @@ def create(
         observation_id: typing.Optional[str] = OMIT,
         trace_id: typing.Optional[str] = OMIT,
         dataset_version: typing.Optional[dt.datetime] = OMIT,
+        created_at: typing.Optional[dt.datetime] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> DatasetRunItem:
         """
@@ -66,6 +67,9 @@ def create(
             If provided, the experiment will use dataset items as they existed at or before this timestamp.
             If not provided, uses the latest version of dataset items.
 
+        created_at : typing.Optional[dt.datetime]
+            Optional timestamp to set the createdAt field of the dataset run item. If not provided or null, defaults to current timestamp.
+
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -98,6 +102,7 @@ def create(
             observation_id=observation_id,
             trace_id=trace_id,
             dataset_version=dataset_version,
+            created_at=created_at,
             request_options=request_options,
         )
         return _response.data
@@ -185,6 +190,7 @@ async def create(
         observation_id: typing.Optional[str] = OMIT,
         trace_id: typing.Optional[str] = OMIT,
         dataset_version: typing.Optional[dt.datetime] = OMIT,
+        created_at: typing.Optional[dt.datetime] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> DatasetRunItem:
         """
@@ -213,6 +219,9 @@ async def create(
             If provided, the experiment will use dataset items as they existed at or before this timestamp.
             If not provided, uses the latest version of dataset items.
 
+        created_at : typing.Optional[dt.datetime]
+            Optional timestamp to set the createdAt field of the dataset run item. If not provided or null, defaults to current timestamp.
+
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -253,6 +262,7 @@ async def main() -> None:
             observation_id=observation_id,
             trace_id=trace_id,
             dataset_version=dataset_version,
+            created_at=created_at,
             request_options=request_options,
         )
         return _response.data
diff --git a/langfuse/api/dataset_run_items/raw_client.py b/langfuse/api/dataset_run_items/raw_client.py
index 894adbfff..f281b13d2 100644
--- a/langfuse/api/dataset_run_items/raw_client.py
+++ b/langfuse/api/dataset_run_items/raw_client.py
@@ -35,6 +35,7 @@ def create(
         observation_id: typing.Optional[str] = OMIT,
         trace_id: typing.Optional[str] = OMIT,
         dataset_version: typing.Optional[dt.datetime] = OMIT,
+        created_at: typing.Optional[dt.datetime] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> HttpResponse[DatasetRunItem]:
         """
@@ -63,6 +64,9 @@ def create(
             If provided, the experiment will use dataset items as they existed at or before this timestamp.
             If not provided, uses the latest version of dataset items.
 
+        created_at : typing.Optional[dt.datetime]
+            Optional timestamp to set the createdAt field of the dataset run item. If not provided or null, defaults to current timestamp.
+
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -81,6 +85,7 @@ def create(
                 "observationId": observation_id,
                 "traceId": trace_id,
                 "datasetVersion": dataset_version,
+                "createdAt": created_at,
             },
             request_options=request_options,
             omit=OMIT,
@@ -298,6 +303,7 @@ async def create(
         observation_id: typing.Optional[str] = OMIT,
         trace_id: typing.Optional[str] = OMIT,
         dataset_version: typing.Optional[dt.datetime] = OMIT,
+        created_at: typing.Optional[dt.datetime] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> AsyncHttpResponse[DatasetRunItem]:
         """
@@ -326,6 +332,9 @@ async def create(
             If provided, the experiment will use dataset items as they existed at or before this timestamp.
             If not provided, uses the latest version of dataset items.
 
+        created_at : typing.Optional[dt.datetime]
+            Optional timestamp to set the createdAt field of the dataset run item. If not provided or null, defaults to current timestamp.
+
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -344,6 +353,7 @@ async def create(
                 "observationId": observation_id,
                 "traceId": trace_id,
                 "datasetVersion": dataset_version,
+                "createdAt": created_at,
             },
             request_options=request_options,
             omit=OMIT,
diff --git a/langfuse/api/dataset_run_items/types/create_dataset_run_item_request.py b/langfuse/api/dataset_run_items/types/create_dataset_run_item_request.py
index 43a586249..169888912 100644
--- a/langfuse/api/dataset_run_items/types/create_dataset_run_item_request.py
+++ b/langfuse/api/dataset_run_items/types/create_dataset_run_item_request.py
@@ -46,6 +46,13 @@ class CreateDatasetRunItemRequest(UniversalBaseModel):
     If not provided, uses the latest version of dataset items.
     """
 
+    created_at: typing_extensions.Annotated[
+        typing.Optional[dt.datetime], FieldMetadata(alias="createdAt")
+    ] = pydantic.Field(default=None)
+    """
+    Optional timestamp to set the createdAt field of the dataset run item. If not provided or null, defaults to current timestamp.
+    """
+
     model_config: typing.ClassVar[pydantic.ConfigDict] = pydantic.ConfigDict(
         extra="allow", frozen=True
     )