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feat(api): Add gpt-5.5 and tool name/namespace to Responses types - #3569

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feat(api): Add gpt-5.5 and tool name/namespace to Responses types#3569
jbeckwith-oai merged 1 commit into
mainfrom
castiron/promotions/pr-15-a7af870ed87c

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@apcha-oai apcha-oai commented Aug 3, 2026 •
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Summary

Allow the new gpt-5.5 model in Responses-related parameters and events, and expose optional name and namespace metadata on function/tool call output items in both beta and stable types. These are additive, backward-compatible SDK changes.

Changes

  • Allow the model value "gpt-5.5" in all Responses-related model/type unions and parameter definitions (chat model literals used by Responses create/compact params and client event types) for both beta and stable APIs.
  • Add optional name: Optional[str] and namespace: Optional[str] fields to function/tool-call output item models in both beta and stable (model classes) so callers can access the producing tool's name and namespace.
  • Add corresponding optional name and namespace entries to the TypedDict parameter representations for function/tool-call output items (beta and stable) so typed request/response shapes include the new metadata.
  • No public symbols were removed or renamed and all additions are optional; there are no breaking API contract changes.

Internal pull request: https://github.com/openai/openai-python-internal/pull/15

Validation

  • Generated SDK changes were copied from the internal pull request.
  • Public SDK CI runs against this draft pull request.

@apcha-oai
[castiron] promote Python SDK changes
acfa6c3 
Castiron-Internal-PR: openai/openai-python-internal#15
Castiron-Source-SHA: a7af870ed87cc7c9518d468e507165be39f05759
Castiron-Public-Base-SHA: cbdc98b
@apcha-oai apcha-oai changed the title [castiron] promote Python SDK changes feat(api): Add gpt-5.5 and tool name/namespace to Responses types Aug 3, 2026
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apcha-oai marked this pull request as ready for review August 3, 2026 17:24
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apcha-oai requested a review from a team as a code owner August 3, 2026 17:24
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openai-sdks Bot commented Aug 3, 2026 •
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OkTest Summary

✅ 237/237 SDK tests passed in 14.073s for Python SDK PR #3569.

Test results — 42 files
Test Result Time
tests/chat-completions-complex-body.test.ts ✅ Passed 302ms
tests/chat-completions-create.test.ts ✅ Passed 373ms
tests/chat-completions-stream.test.ts ✅ Passed 261ms
tests/files-content-binary.test.ts ✅ Passed 241ms
tests/files-create-multipart.test.ts ✅ Passed 228ms
tests/files-list-pagination.test.ts ✅ Passed 281ms
tests/initialize-config.test.ts ✅ Passed 247ms
tests/instance-isolation.test.ts ✅ Passed 273ms
tests/models-list.test.ts ✅ Passed 385ms
tests/responses-background-lifecycle.test.ts ✅ Passed 310ms
tests/responses-body-method-errors.test.ts ✅ Passed 548ms
tests/responses-cancel-timeout.test.ts ✅ Passed 231ms
tests/responses-cancel.test.ts ✅ Passed 333ms
tests/responses-compact-retries.test.ts ✅ Passed 435ms
tests/responses-compact.test.ts ✅ Passed 565ms
tests/responses-create-advanced-stream.test.ts ✅ Passed 174ms
tests/responses-create-advanced.test.ts ✅ Passed 422ms
tests/responses-create-disconnect.test.ts ✅ Passed 1.608s
tests/responses-create-errors.test.ts ✅ Passed 258ms
tests/responses-create-malformed-api-responses.test.ts ✅ Passed 497ms
tests/responses-create-retries.test.ts ✅ Passed 361ms
tests/responses-create-stream-failures.test.ts ✅ Passed 250ms
tests/responses-create-stream-timeout.test.ts ✅ Passed 294ms
tests/responses-create-stream-wire.test.ts ✅ Passed 3.974s
tests/responses-create-stream.test.ts ✅ Passed 94ms
tests/responses-create-terminal-states.test.ts ✅ Passed 393ms
tests/responses-create-timeout.test.ts ✅ Passed 285ms
tests/responses-create.test.ts ✅ Passed 366ms
tests/responses-delete.test.ts ✅ Passed 306ms
tests/responses-input-items-errors.test.ts ✅ Passed 495ms
tests/responses-input-items-list.test.ts ✅ Passed 476ms
tests/responses-input-items-options.test.ts ✅ Passed 440ms
tests/responses-input-tokens-count-timeout.test.ts ✅ Passed 287ms
tests/responses-input-tokens-count.test.ts ✅ Passed 405ms
tests/responses-malformed-inputs.test.ts ✅ Passed 3.081s
tests/responses-not-found-errors.test.ts ✅ Passed 491ms
tests/responses-parse.test.ts ✅ Passed 453ms
tests/responses-retrieve-retries.test.ts ✅ Passed 492ms
tests/responses-retrieve.test.ts ✅ Passed 428ms
tests/responses-stored-method-errors.test.ts ✅ Passed 989ms
tests/retry-behavior.test.ts ✅ Passed 3.393s
tests/sdk-error-shape.test.ts ✅ Passed 351ms

View OkTest run #30836644402

SDK merge (e2e1a2c5691b) · head (acfa6c3099d7) · base (cbdc98b6c1e2) · OkTest (91635c6a2723)

@jbeckwith-oai
jbeckwith-oai merged commit dd1202d into main Aug 3, 2026
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@jbeckwith-oai
jbeckwith-oai deleted the castiron/promotions/pr-15-a7af870ed87c branch August 3, 2026 17:33
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pull Bot pushed a commit to gitupdates/openai-python that referenced this pull request Aug 3, 2026
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release: 2.53.0 (openai#3575)
5e36cd3 
Automated Release PR
---


##
[2.53.0](openai/openai-python@v2.52.1...v2.53.0)
(2026-08-03)


### Features

* **api:** Add gpt-5.5 and tool name/namespace to Responses types
([openai#3569](openai#3569))
([dd1202d](openai@dd1202d))


### Bug Fixes

* **ci:** avoid NumPy source builds and duplicate HTTPX coverage
([openai#3573](openai#3573))
([b58332f](openai@b58332f))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Justin Beckwith <jbeckwith@openai.com>
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