release: 3.10.0

[openai-sdks]

Automated Release PR

3.10.0 (2026-09-08)

Features

• api: add GPT Image 2.5 models and image options (#3824) (5b39c45)
• api: add service-account API key expiration fields (#3802) (f1cd7f0)

---

This PR was generated with Release Please. See documentation.

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

36 mixed files remain; 0 existing customizations changed.

Compared 5b39c453ee5e → 5fab3e8ea806. Generated baselines verified.

36 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/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
• tests/api_resources/test_videos.py

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 34292364360 --repo openai/openai-python \
  --name castiron-custom-code-34292364360-1 --dir /tmp/castiron-custom-code-34292364360-1
git apply --stat /tmp/castiron-custom-code-34292364360-1/custom-code.patch
cat /tmp/castiron-custom-code-34292364360-1/custom-code.patch

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

git fetch --no-tags origin 5b39c453ee5ee8f46fba0bd9cb4ae47fa5ee6d51 5fab3e8ea8065db435b4c61312e6d9f2637464a2
python3 scripts/castiron/custom_code_report.py report \
  --base 5b39c453ee5ee8f46fba0bd9cb4ae47fa5ee6d51 \
  --head 5fab3e8ea8065db435b4c61312e6d9f2637464a2 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-5fab3e8ea806
cat /tmp/castiron-custom-code-5fab3e8ea806/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]

OkTest Summary

✅ 236/236 SDK tests passed in 13.289s for Python SDK PR #3822.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	202ms
tests/chat-completions-create.test.ts	✅ Passed	245ms
tests/chat-completions-stream.test.ts	✅ Passed	284ms
tests/files-content-binary.test.ts	✅ Passed	271ms
tests/files-create-multipart.test.ts	✅ Passed	295ms
tests/files-list-pagination.test.ts	✅ Passed	187ms
tests/initialize-config.test.ts	✅ Passed	188ms
tests/instance-isolation.test.ts	✅ Passed	181ms
tests/models-list.test.ts	✅ Passed	314ms
tests/responses-background-lifecycle.test.ts	✅ Passed	266ms
tests/responses-body-method-errors.test.ts	✅ Passed	371ms
tests/responses-cancel-timeout.test.ts	✅ Passed	283ms
tests/responses-cancel.test.ts	✅ Passed	360ms
tests/responses-compact-retries.test.ts	✅ Passed	440ms
tests/responses-compact.test.ts	✅ Passed	396ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	560ms
tests/responses-create-advanced.test.ts	✅ Passed	314ms
tests/responses-create-disconnect.test.ts	✅ Passed	1.22s
tests/responses-create-errors.test.ts	✅ Passed	338ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	621ms
tests/responses-create-retries.test.ts	✅ Passed	437ms
tests/responses-create-stream-failures.test.ts	✅ Passed	255ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	220ms
tests/responses-create-stream-wire.test.ts	✅ Passed	4.309s
tests/responses-create-stream.test.ts	✅ Passed	146ms
tests/responses-create-terminal-states.test.ts	✅ Passed	282ms
tests/responses-create-timeout.test.ts	✅ Passed	267ms
tests/responses-create.test.ts	✅ Passed	260ms
tests/responses-delete.test.ts	✅ Passed	221ms
tests/responses-input-items-errors.test.ts	✅ Passed	696ms
tests/responses-input-items-list.test.ts	✅ Passed	450ms
tests/responses-input-items-options.test.ts	✅ Passed	356ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	264ms
tests/responses-input-tokens-count.test.ts	✅ Passed	315ms
tests/responses-malformed-inputs.test.ts	✅ Passed	3.292s
tests/responses-not-found-errors.test.ts	✅ Passed	354ms
tests/responses-parse.test.ts	✅ Passed	506ms
tests/responses-retrieve-retries.test.ts	✅ Passed	252ms
tests/responses-retrieve.test.ts	✅ Passed	272ms
tests/responses-stored-method-errors.test.ts	✅ Passed	679ms
tests/retry-behavior.test.ts	✅ Passed	3.151s
tests/sdk-error-shape.test.ts	✅ Passed	311ms

View OkTest run #34292319567

_{SDK merge (1d5067023955) · head (5fab3e8ea806) · base (5b39c453ee5e) · OkTest (08ec4299e769)}

[marcuswood-oai]

Reviewed the release diff: version references are consistent, the changelog includes the merged image changes, and the diff contains only release metadata and documentation updates. CI is green.

[openai-sdks]

🤖 Created releases:

• v3.10.0

🌻