diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index fc2c3ec04d..a4c14007b3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.82.0"
+  ".": "1.82.1"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 017aa58a1c..d761f22d73 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 111
 openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-fc64d7c2c8f51f750813375356c3f3fdfc7fc1b1b34f19c20a5410279d445d37.yml
 openapi_spec_hash: 618285fc70199ee32b9ebe4bf72f7e4c
-config_hash: c497f6b750cc89c0bf2eefc0bc839c70
+config_hash: 535b6e5f26a295d609b259c8cb8f656c
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a354b8735a..31b7792a53 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 1.82.1 (2025-05-29)
+
+Full Changelog: [v1.82.0...v1.82.1](https://github.com/openai/openai-python/compare/v1.82.0...v1.82.1)
+
+### Bug Fixes
+
+* **responses:** don't include `parsed_arguments` when re-serialising ([6d04193](https://github.com/openai/openai-python/commit/6d041937963ce452affcfb3553146ee51acfeb7a))
+
+
+### Chores
+
+* **internal:** fix release workflows ([361a909](https://github.com/openai/openai-python/commit/361a909a0cc83e5029ea425fd72202ffa8d1a46a))
+
 ## 1.82.0 (2025-05-22)
 
 Full Changelog: [v1.81.0...v1.82.0](https://github.com/openai/openai-python/compare/v1.81.0...v1.82.0)
diff --git a/bin/check-release-environment b/bin/check-release-environment
index 5471b69edb..2cc5ad6352 100644
--- a/bin/check-release-environment
+++ b/bin/check-release-environment
@@ -2,6 +2,10 @@
 
 errors=()
 
+if [ -z "${STAINLESS_API_KEY}" ]; then
+  errors+=("The STAINLESS_API_KEY secret has not been set. Please contact Stainless for an API key & set it in your organization secrets on GitHub.")
+fi
+
 if [ -z "${PYPI_TOKEN}" ]; then
   errors+=("The OPENAI_PYPI_TOKEN secret has not been set. Please set it in either this repository's secrets or your organization secrets.")
 fi
diff --git a/pyproject.toml b/pyproject.toml
index b8580d854a..190e9bbbfa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai"
-version = "1.82.0"
+version = "1.82.1"
 description = "The official Python library for the openai API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/openai/_utils/_transform.py b/src/openai/_utils/_transform.py
index b0cc20a735..60f9dfcbcb 100644
--- a/src/openai/_utils/_transform.py
+++ b/src/openai/_utils/_transform.py
@@ -212,7 +212,7 @@ def _transform_recursive(
         return data
 
     if isinstance(data, pydantic.BaseModel):
-        return model_dump(data, exclude_unset=True, mode="json")
+        return model_dump(data, exclude_unset=True, mode="json", exclude=getattr(data, '__api_exclude__', None))
 
     annotated_type = _get_annotated_type(annotation)
     if annotated_type is None:
diff --git a/src/openai/_version.py b/src/openai/_version.py
index 8fc27e8457..9bf34c1f6b 100644
--- a/src/openai/_version.py
+++ b/src/openai/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "openai"
-__version__ = "1.82.0"  # x-release-please-version
+__version__ = "1.82.1"  # x-release-please-version
diff --git a/src/openai/types/responses/parsed_response.py b/src/openai/types/responses/parsed_response.py
index 923e9debba..f0b85f7209 100644
--- a/src/openai/types/responses/parsed_response.py
+++ b/src/openai/types/responses/parsed_response.py
@@ -55,6 +55,8 @@ class ParsedResponseOutputMessage(ResponseOutputMessage, GenericModel, Generic[C
 class ParsedResponseFunctionToolCall(ResponseFunctionToolCall):
     parsed_arguments: object = None
 
+    __api_exclude__ = {'parsed_arguments'}
+
 
 ParsedResponseOutputItem: TypeAlias = Annotated[
     Union[