release: 4.78.0

[openai-sdks]

Automated Release PR

4.78.0 (2026-10-06)

Features

• api: add standalone Decisions support (#1148) (4c3de8d)

---

This PR was generated with Release Please. See documentation.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-06T22:44:31.157158Z	8c93398	PR opened
🔒 Security Review	✅ Completed 2026-10-06T22:44:22.393894Z	8c93398	PR opened

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Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[openai-sdks]

OkTest Summary

✅ 236/236 SDK tests passed in 16.415s for Java SDK PR #1150.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	366ms
tests/chat-completions-create.test.ts	✅ Passed	667ms
tests/chat-completions-stream.test.ts	✅ Passed	845ms
tests/files-content-binary.test.ts	✅ Passed	247ms
tests/files-create-multipart.test.ts	✅ Passed	222ms
tests/files-list-pagination.test.ts	✅ Passed	314ms
tests/initialize-config.test.ts	✅ Passed	158ms
tests/instance-isolation.test.ts	✅ Passed	255ms
tests/models-list.test.ts	✅ Passed	228ms
tests/responses-background-lifecycle.test.ts	✅ Passed	231ms
tests/responses-body-method-errors.test.ts	✅ Passed	568ms
tests/responses-cancel-timeout.test.ts	✅ Passed	211ms
tests/responses-cancel.test.ts	✅ Passed	260ms
tests/responses-compact-retries.test.ts	✅ Passed	347ms
tests/responses-compact.test.ts	✅ Passed	280ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	484ms
tests/responses-create-advanced.test.ts	✅ Passed	1.657s
tests/responses-create-disconnect.test.ts	✅ Passed	1.011s
tests/responses-create-errors.test.ts	✅ Passed	400ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	261ms
tests/responses-create-retries.test.ts	✅ Passed	212ms
tests/responses-create-stream-failures.test.ts	✅ Passed	333ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	244ms
tests/responses-create-stream-wire.test.ts	✅ Passed	6.14s
tests/responses-create-stream.test.ts	✅ Passed	637ms
tests/responses-create-terminal-states.test.ts	✅ Passed	449ms
tests/responses-create-timeout.test.ts	✅ Passed	196ms
tests/responses-create.test.ts	✅ Passed	1.101s
tests/responses-delete.test.ts	✅ Passed	266ms
tests/responses-input-items-errors.test.ts	✅ Passed	284ms
tests/responses-input-items-list.test.ts	✅ Passed	284ms
tests/responses-input-items-options.test.ts	✅ Passed	518ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	225ms
tests/responses-input-tokens-count.test.ts	✅ Passed	199ms
tests/responses-malformed-inputs.test.ts	✅ Passed	4.888s
tests/responses-not-found-errors.test.ts	✅ Passed	433ms
tests/responses-parse.test.ts	✅ Passed	440ms
tests/responses-retrieve-retries.test.ts	✅ Passed	198ms
tests/responses-retrieve.test.ts	✅ Passed	296ms
tests/responses-stored-method-errors.test.ts	✅ Passed	917ms
tests/retry-behavior.test.ts	✅ Passed	3.216s
tests/sdk-error-shape.test.ts	✅ Passed	407ms

View OkTest run #37542401452

_{SDK merge (520d958bf2d7) · head (8c9339860ee8) · base (4c3de8de48de) · OkTest (505ac0e34283)}

[github-actions]

Castiron custom code

Evaluated main: 4c3de8de48deecd36a7c2de60feeac80c7d37c1d.

✅ No new custom-code files detected.

102 mixed files remain; 0 existing customizations changed.

Compared 4c3de8de48de → 8c9339860ee8. Generated baselines verified.

102 existing customizations unchanged

• openai-java-core/src/main/kotlin/com/openai/models/audio/AudioResponseFormat.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuth.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuthCreateParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuthRotateParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponse.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseInjectEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseInjectFailedEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseStreamEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseToolSearchOutputItemParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponsesServerEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionMessageFunctionToolCall.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionToolMessageParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/conversations/ConversationCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/conversations/items/ItemCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/embeddings/Embedding.kt
• openai-java-core/src/main/kotlin/com/openai/models/embeddings/EmbeddingCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/live/ResponseItemCreateEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/Response.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionToolCall.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionWebSearch.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseInputItem.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseStreamEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseTextConfig.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseToolSearchOutputItemParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponsesServerEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/videos/Video.kt
• openai-java-core/src/main/kotlin/com/openai/models/webhooks/UnwrapWebhookEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/webhooks/WebhookEndpointWithSecret.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/BetaServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/BetaServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ImageServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/SkillServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/VideoServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/WebhookServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/WebhookServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/audio/TranscriptionServiceAsyncImpl.kt

62 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 37542821455 --repo openai/openai-java \
  --name castiron-custom-code-37542821455-1 --dir /tmp/castiron-custom-code-37542821455-1
git apply --stat /tmp/castiron-custom-code-37542821455-1/custom-code.patch
cat /tmp/castiron-custom-code-37542821455-1/custom-code.patch

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

git fetch --no-tags origin 4c3de8de48deecd36a7c2de60feeac80c7d37c1d 8c9339860ee87e7c104e37854f98043787713650
python3 scripts/castiron/custom_code_report.py report \
  --base 4c3de8de48deecd36a7c2de60feeac80c7d37c1d \
  --head 8c9339860ee87e7c104e37854f98043787713650 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-8c9339860ee8
cat /tmp/castiron-custom-code-8c9339860ee8/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:

• v4.78.0

🌻