diff --git a/api/client/python/src/openmeter/_operations/_operations.py b/api/client/python/src/openmeter/_operations/_operations.py
index 5c4ffaf8f..65927570a 100644
--- a/api/client/python/src/openmeter/_operations/_operations.py
+++ b/api/client/python/src/openmeter/_operations/_operations.py
@@ -3767,11 +3767,11 @@ def list_subjects(self, **kwargs: Any) -> List[JSON]:
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -3846,11 +3846,11 @@ def upsert_subject(self, body: List[JSON], *, content_type: str = "application/j
                 # JSON input template you can fill out and use as your body input.
                 body = [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -3861,11 +3861,11 @@ def upsert_subject(self, body: List[JSON], *, content_type: str = "application/j
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -3899,11 +3899,11 @@ def upsert_subject(self, body: IO[bytes], *, content_type: str = "application/js
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -3934,11 +3934,11 @@ def upsert_subject(self, body: Union[List[JSON], IO[bytes]], **kwargs: Any) -> L
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -4021,11 +4021,11 @@ def get_subject(self, subject_id_or_key: str, **kwargs: Any) -> JSON:
 
                 # response body for status code(s): 200
                 response == {
+                    "id": "str",  # Required.
                     "key": "str",  # Required.
                     "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                     "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                     "displayName": "str",  # Optional.
-                    "id": "str",  # Optional.
                     "metadata": {
                         "str": {}  # Optional. Dictionary of :code:`<any>`.
                     },
diff --git a/api/client/python/src/openmeter/aio/_operations/_operations.py b/api/client/python/src/openmeter/aio/_operations/_operations.py
index 90b3c9a5c..b3e96ea05 100644
--- a/api/client/python/src/openmeter/aio/_operations/_operations.py
+++ b/api/client/python/src/openmeter/aio/_operations/_operations.py
@@ -2494,11 +2494,11 @@ async def list_subjects(self, **kwargs: Any) -> List[JSON]:
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -2575,11 +2575,11 @@ async def upsert_subject(
                 # JSON input template you can fill out and use as your body input.
                 body = [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -2590,11 +2590,11 @@ async def upsert_subject(
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -2630,11 +2630,11 @@ async def upsert_subject(
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -2665,11 +2665,11 @@ async def upsert_subject(self, body: Union[List[JSON], IO[bytes]], **kwargs: Any
                 # response body for status code(s): 200
                 response == [
                     {
+                        "id": "str",  # Required.
                         "key": "str",  # Required.
                         "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                         "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                         "displayName": "str",  # Optional.
-                        "id": "str",  # Optional.
                         "metadata": {
                             "str": {}  # Optional. Dictionary of :code:`<any>`.
                         },
@@ -2752,11 +2752,11 @@ async def get_subject(self, subject_id_or_key: str, **kwargs: Any) -> JSON:
 
                 # response body for status code(s): 200
                 response == {
+                    "id": "str",  # Required.
                     "key": "str",  # Required.
                     "currentPeriodEnd": "2020-02-20 00:00:00",  # Optional.
                     "currentPeriodStart": "2020-02-20 00:00:00",  # Optional.
                     "displayName": "str",  # Optional.
-                    "id": "str",  # Optional.
                     "metadata": {
                         "str": {}  # Optional. Dictionary of :code:`<any>`.
                     },