release: 3.12.0

[openai-sdks]

Automated Release PR

3.12.0 (2026-09-10)

Features

• api: Add Live API (0e4bfef)

Bug Fixes

• add aclose() to AsyncStream for standard async cleanup (#2854) (802b334)
• handle bare dict and list annotations without type arguments (#3760) (c7e8c03)
• preserve finalized output on null response completion (#3345) (adb212e)

---

This PR was generated with Release Please. See documentation.

[openai-sdks]

OkTest Summary

✅ 236/236 SDK tests passed in 12.083s for Python SDK PR #3832.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	200ms
tests/chat-completions-create.test.ts	✅ Passed	297ms
tests/chat-completions-stream.test.ts	✅ Passed	249ms
tests/files-content-binary.test.ts	✅ Passed	254ms
tests/files-create-multipart.test.ts	✅ Passed	262ms
tests/files-list-pagination.test.ts	✅ Passed	151ms
tests/initialize-config.test.ts	✅ Passed	172ms
tests/instance-isolation.test.ts	✅ Passed	221ms
tests/models-list.test.ts	✅ Passed	236ms
tests/responses-background-lifecycle.test.ts	✅ Passed	200ms
tests/responses-body-method-errors.test.ts	✅ Passed	316ms
tests/responses-cancel-timeout.test.ts	✅ Passed	217ms
tests/responses-cancel.test.ts	✅ Passed	285ms
tests/responses-compact-retries.test.ts	✅ Passed	284ms
tests/responses-compact.test.ts	✅ Passed	221ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	131ms
tests/responses-create-advanced.test.ts	✅ Passed	273ms
tests/responses-create-disconnect.test.ts	✅ Passed	1.112s
tests/responses-create-errors.test.ts	✅ Passed	221ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	211ms
tests/responses-create-retries.test.ts	✅ Passed	686ms
tests/responses-create-stream-failures.test.ts	✅ Passed	811ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	239ms
tests/responses-create-stream-wire.test.ts	✅ Passed	3.946s
tests/responses-create-stream.test.ts	✅ Passed	81ms
tests/responses-create-terminal-states.test.ts	✅ Passed	279ms
tests/responses-create-timeout.test.ts	✅ Passed	223ms
tests/responses-create.test.ts	✅ Passed	216ms
tests/responses-delete.test.ts	✅ Passed	239ms
tests/responses-input-items-errors.test.ts	✅ Passed	477ms
tests/responses-input-items-list.test.ts	✅ Passed	401ms
tests/responses-input-items-options.test.ts	✅ Passed	383ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	251ms
tests/responses-input-tokens-count.test.ts	✅ Passed	341ms
tests/responses-malformed-inputs.test.ts	✅ Passed	2.923s
tests/responses-not-found-errors.test.ts	✅ Passed	244ms
tests/responses-parse.test.ts	✅ Passed	505ms
tests/responses-retrieve-retries.test.ts	✅ Passed	253ms
tests/responses-retrieve.test.ts	✅ Passed	257ms
tests/responses-stored-method-errors.test.ts	✅ Passed	592ms
tests/retry-behavior.test.ts	✅ Passed	3.108s
tests/sdk-error-shape.test.ts	✅ Passed	314ms

View OkTest run #34507675343

_{SDK merge (1599c3c2875b) · head (1f48bfddce8a) · base (0e4bfef9c792) · OkTest (08ec4299e769)}

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

41 mixed files remain; 0 existing customizations changed.

Compared 0e4bfef9c792 → 1f48bfddce8a. Generated baselines verified.

41 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/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/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
• src/openai/types/webhooks/live_call_incoming_webhook_event.py
• src/openai/types/webhooks/unwrap_webhook_event.py

1 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 34507749644 --repo openai/openai-python \
  --name castiron-custom-code-34507749644-1 --dir /tmp/castiron-custom-code-34507749644-1
git apply --stat /tmp/castiron-custom-code-34507749644-1/custom-code.patch
cat /tmp/castiron-custom-code-34507749644-1/custom-code.patch

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

git fetch --no-tags origin 0e4bfef9c79251fcf4926fd732129627bde050f1 1f48bfddce8a2fa43c40195fa8dd47f87079a8a4
python3 scripts/castiron/custom_code_report.py report \
  --base 0e4bfef9c79251fcf4926fd732129627bde050f1 \
  --head 1f48bfddce8a2fa43c40195fa8dd47f87079a8a4 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-1f48bfddce8a
cat /tmp/castiron-custom-code-1f48bfddce8a/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:

• v3.12.0

🌻