release: 3.13.0

[openai-sdks]

Automated Release PR

3.13.0 (2026-09-10)

Features

• api: add Agents API (1c4284a)

---

This PR was generated with Release Please. See documentation.

[openai-sdks]

OkTest Summary

✅ 236/236 SDK tests passed in 11.618s for Python SDK PR #3848.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	175ms
tests/chat-completions-create.test.ts	✅ Passed	207ms
tests/chat-completions-stream.test.ts	✅ Passed	276ms
tests/files-content-binary.test.ts	✅ Passed	206ms
tests/files-create-multipart.test.ts	✅ Passed	223ms
tests/files-list-pagination.test.ts	✅ Passed	159ms
tests/initialize-config.test.ts	✅ Passed	214ms
tests/instance-isolation.test.ts	✅ Passed	177ms
tests/models-list.test.ts	✅ Passed	234ms
tests/responses-background-lifecycle.test.ts	✅ Passed	220ms
tests/responses-body-method-errors.test.ts	✅ Passed	300ms
tests/responses-cancel-timeout.test.ts	✅ Passed	247ms
tests/responses-cancel.test.ts	✅ Passed	190ms
tests/responses-compact-retries.test.ts	✅ Passed	332ms
tests/responses-compact.test.ts	✅ Passed	326ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	439ms
tests/responses-create-advanced.test.ts	✅ Passed	243ms
tests/responses-create-disconnect.test.ts	✅ Passed	1.221s
tests/responses-create-errors.test.ts	✅ Passed	263ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	203ms
tests/responses-create-retries.test.ts	✅ Passed	304ms
tests/responses-create-stream-failures.test.ts	✅ Passed	253ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	205ms
tests/responses-create-stream-wire.test.ts	✅ Passed	3.82s
tests/responses-create-stream.test.ts	✅ Passed	100ms
tests/responses-create-terminal-states.test.ts	✅ Passed	216ms
tests/responses-create-timeout.test.ts	✅ Passed	224ms
tests/responses-create.test.ts	✅ Passed	522ms
tests/responses-delete.test.ts	✅ Passed	197ms
tests/responses-input-items-errors.test.ts	✅ Passed	380ms
tests/responses-input-items-list.test.ts	✅ Passed	331ms
tests/responses-input-items-options.test.ts	✅ Passed	302ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	227ms
tests/responses-input-tokens-count.test.ts	✅ Passed	219ms
tests/responses-malformed-inputs.test.ts	✅ Passed	2.864s
tests/responses-not-found-errors.test.ts	✅ Passed	249ms
tests/responses-parse.test.ts	✅ Passed	459ms
tests/responses-retrieve-retries.test.ts	✅ Passed	276ms
tests/responses-retrieve.test.ts	✅ Passed	244ms
tests/responses-stored-method-errors.test.ts	✅ Passed	620ms
tests/retry-behavior.test.ts	✅ Passed	3.115s
tests/sdk-error-shape.test.ts	✅ Passed	284ms

View OkTest run #34520639312

_{SDK merge (fb2bfd1b4703) · head (0ae0162b091e) · base (1c4284a08294) · OkTest (08ec4299e769)}

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

43 mixed files remain; 0 existing customizations changed.

Compared 1c4284a08294 → 0ae0162b091e. Generated baselines verified.

43 existing customizations unchanged

• api.md
• scripts/castiron/README.md
• scripts/castiron/custom_code_report.py
• scripts/castiron/test_custom_code_report.py
• src/openai/init.py
• src/openai/_client.py
• src/openai/resources/audio/transcriptions.py
• src/openai/resources/audio/translations.py
• src/openai/resources/beta/agents/sessions/sessions.py
• src/openai/resources/beta/beta.py
• src/openai/resources/beta/responses/responses.py
• src/openai/resources/beta/threads/runs/runs.py
• src/openai/resources/beta/threads/threads.py
• src/openai/resources/chat/completions/completions.py
• src/openai/resources/embeddings.py
• src/openai/resources/files.py
• src/openai/resources/live/forks.py
• src/openai/resources/live/live.py
• src/openai/resources/live/sideband.py
• src/openai/resources/realtime/realtime.py
• src/openai/resources/responses/responses.py
• src/openai/resources/uploads/uploads.py
• src/openai/resources/vector_stores/file_batches.py
• src/openai/resources/vector_stores/files.py
• src/openai/resources/videos.py
• src/openai/resources/webhooks/init.py
• src/openai/resources/webhooks/webhooks.py
• src/openai/types/beta/agent_session_message.py
• src/openai/types/chat/init.py
• src/openai/types/chat/chat_completion_message_tool_call.py
• src/openai/types/fine_tuning/fine_tuning_job_integration.py
• src/openai/types/responses/init.py
• src/openai/types/responses/response.py
• src/openai/types/responses/response_function_web_search.py
• src/openai/types/responses/response_function_web_search_param.py
• src/openai/types/responses/responses_client_event.py
• src/openai/types/responses/responses_client_event_param.py
• src/openai/types/responses/tool.py
• src/openai/types/responses/tool_param.py
• src/openai/types/webhooks/init.py

3 more in the full report.

A changed generated baseline means this report cannot reliably identify which handwritten lines changed.

Inspect the custom-code diff

Download the exact patch produced by this run (requires repository access):

gh run download 34520712973 --repo openai/openai-python \
  --name castiron-custom-code-34520712973-1 --dir /tmp/castiron-custom-code-34520712973-1
git apply --stat /tmp/castiron-custom-code-34520712973-1/custom-code.patch
cat /tmp/castiron-custom-code-34520712973-1/custom-code.patch

Or reproduce it from an SDK checkout containing the vendored reporter:

git fetch --no-tags origin 1c4284a08294f734d57047585ab82e2e09d3a5bc 0ae0162b091eace829209ea8586d1e7bc299af96
python3 scripts/castiron/custom_code_report.py report \
  --base 1c4284a08294f734d57047585ab82e2e09d3a5bc \
  --head 0ae0162b091eace829209ea8586d1e7bc299af96 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-0ae0162b091e
cat /tmp/castiron-custom-code-0ae0162b091e/custom-code.patch

This is the current full custom patch for mixed files, not an attribution of only the handwritten lines changed by this PR.

Full report and patch

[openai-sdks]

🤖 Created releases:

• v3.13.0

🌻