feat(api): Add GPT-5.5 model and optional tool name/namespace fields

[apcha-oai]

Summary

Expose the gpt-5.5 model identifier and add optional name and namespace properties to function/tool input and output models in the Responses and BetaResponses APIs. The new fields are optional and include typed getters, raw JSON accessors, builder setters, and are considered in equality, hashing, validation, and string representations.

Changes

• Add gpt-5.5 as a known model value (e.g., ChatModel and response model enums) so callers can select or detect the gpt-5.5 model identifier.
• Add optional name:String and namespace:String fields to function/tool output and input model types used by Responses and BetaResponses (including public types such as ResponseFunctionToolCallOutputItem, ResponseInputItem, BetaResponseFunctionToolCallOutputItem, and BetaResponseInputItem).
• Expose typed accessors name(): Optional and namespace(): Optional, raw JSON accessors (_name(), _namespace()), and builder methods for these fields; include them in equals(), hashCode(), toString(), and validation logic.

Internal pull request: https://github.com/openai/openai-java-internal/pull/13

Validation

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

[Copilot]

Pull request overview

This PR promotes generated Java SDK updates from the internal repository, primarily extending response/function-call output models and aligning associated tests with the updated schema.

Changes:

• Added name and namespace fields to function tool call output-related models (stable + beta) and updated equality/hash/toString/validation accordingly.
• Updated Kotlin tests to set (and in key cases assert) the new name / namespace fields for roundtrip/serialization coverage.
• Added the gpt-5.5 model identifier to model enums/param types and introduced Castiron generation metadata files.

Reviewed changes

Copilot reviewed 21 out of 22 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionToolCallOutputItem.kt	Adds name/namespace to the response function tool call output item model and builder.
openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseInputItem.kt	Adds name/namespace to FunctionCallOutput input item model and builder; updates serialization/validation and object semantics.
openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseFunctionToolCallOutputItem.kt	Beta equivalent of adding name/namespace to function tool call output item model and builder.
openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseInputItem.kt	Beta equivalent of adding name/namespace to FunctionCallOutput input item model and builder.
openai-java-core/src/main/kotlin/com/openai/models/ChatModel.kt	Adds GPT_5_5 ("gpt-5.5") to the chat model enum.
openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseCompactParams.kt	Adds "gpt-5.5" to response compact params model enum/mappings.
openai-java-core/src/main/kotlin/com/openai/models/beta/responses/ResponseCreateParams.kt	Adds "gpt-5.5" to beta response create params model enum/mappings.
openai-java-core/src/main/kotlin/com/openai/models/beta/responses/ResponseCompactParams.kt	Adds "gpt-5.5" to beta response compact params model enum/mappings.
openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponsesClientEvent.kt	Adds "gpt-5.5" to beta responses client event model enum/mappings.
openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponse.kt	Adds "gpt-5.5" to beta response model enum/mappings.
openai-java-core/src/test/kotlin/com/openai/models/responses/ResponseFunctionToolCallOutputItemTest.kt	Extends tests to populate and assert name/namespace.
openai-java-core/src/test/kotlin/com/openai/models/responses/ResponseOutputItemTest.kt	Updates test builders to set name/namespace for function call output items.
openai-java-core/src/test/kotlin/com/openai/models/responses/ResponseItemTest.kt	Updates test builders to set name/namespace for function call output items.
openai-java-core/src/test/kotlin/com/openai/models/responses/ResponseInputItemTest.kt	Updates test builders to set name/namespace for function call outputs.
openai-java-core/src/test/kotlin/com/openai/models/conversations/items/ConversationItemTest.kt	Updates test builders to set name/namespace for embedded function call output items.
openai-java-core/src/test/kotlin/com/openai/models/beta/responses/BetaResponseFunctionToolCallOutputItemTest.kt	Extends beta tests to populate and assert name/namespace.
openai-java-core/src/test/kotlin/com/openai/models/beta/responses/BetaResponseOutputItemTest.kt	Updates beta test builders to set name/namespace.
openai-java-core/src/test/kotlin/com/openai/models/beta/responses/BetaResponseItemTest.kt	Updates beta test builders to set name/namespace.
openai-java-core/src/test/kotlin/com/openai/models/beta/responses/BetaResponseInputItemTest.kt	Updates beta test builders to set name/namespace.
api_reference/.gitattributes	Disables whitespace checking for openapi.transformed.yml under api_reference/.
.castiron.stats.yml	Adds generation metadata (schema/config/spec hashes, codegen SHA).

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[openai-sdks]

OkTest Summary

✅ 237/237 SDK tests passed in 17.202s for Java SDK PR #837.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	185ms
tests/chat-completions-create.test.ts	✅ Passed	420ms
tests/chat-completions-stream.test.ts	✅ Passed	330ms
tests/files-content-binary.test.ts	✅ Passed	199ms
tests/files-create-multipart.test.ts	✅ Passed	398ms
tests/files-list-pagination.test.ts	✅ Passed	239ms
tests/initialize-config.test.ts	✅ Passed	199ms
tests/instance-isolation.test.ts	✅ Passed	213ms
tests/models-list.test.ts	✅ Passed	196ms
tests/responses-background-lifecycle.test.ts	✅ Passed	222ms
tests/responses-body-method-errors.test.ts	✅ Passed	482ms
tests/responses-cancel-timeout.test.ts	✅ Passed	221ms
tests/responses-cancel.test.ts	✅ Passed	373ms
tests/responses-compact-retries.test.ts	✅ Passed	449ms
tests/responses-compact.test.ts	✅ Passed	335ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	371ms
tests/responses-create-advanced.test.ts	✅ Passed	1.462s
tests/responses-create-disconnect.test.ts	✅ Passed	1.961s
tests/responses-create-errors.test.ts	✅ Passed	281ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	172ms
tests/responses-create-retries.test.ts	✅ Passed	275ms
tests/responses-create-stream-failures.test.ts	✅ Passed	267ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	315ms
tests/responses-create-stream-wire.test.ts	✅ Passed	7.652s
tests/responses-create-stream.test.ts	✅ Passed	88ms
tests/responses-create-terminal-states.test.ts	✅ Passed	350ms
tests/responses-create-timeout.test.ts	✅ Passed	199ms
tests/responses-create.test.ts	✅ Passed	204ms
tests/responses-delete.test.ts	✅ Passed	177ms
tests/responses-input-items-errors.test.ts	✅ Passed	337ms
tests/responses-input-items-list.test.ts	✅ Passed	432ms
tests/responses-input-items-options.test.ts	✅ Passed	118ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	269ms
tests/responses-input-tokens-count.test.ts	✅ Passed	282ms
tests/responses-malformed-inputs.test.ts	✅ Passed	5.727s
tests/responses-not-found-errors.test.ts	✅ Passed	342ms
tests/responses-parse.test.ts	✅ Passed	606ms
tests/responses-retrieve-retries.test.ts	✅ Passed	279ms
tests/responses-retrieve.test.ts	✅ Passed	305ms
tests/responses-stored-method-errors.test.ts	✅ Passed	980ms
tests/retry-behavior.test.ts	✅ Passed	3.668s
tests/sdk-error-shape.test.ts	✅ Passed	563ms

View OkTest run #30850035626

_{SDK merge (798cce96827b) · head (a2f22375dd4c) · base (bed79520181b) · OkTest (91635c6a2723)}

[Copilot]

Pull request overview

Copilot reviewed 21 out of 22 changed files in this pull request and generated no new comments.