release: 4.78.1

[openai-sdks]

Automated Release PR

4.78.1 (2026-10-07)

Bug Fixes

• ci: reuse SDK compilation outputs across Java builds (#1149) (a0dc1bc)

---

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 2026-10-07T15:38:41.448110Z	188e18a	PR opened
🔒 Security Review	✅ Completed 2026-10-07T15:39:25.766838Z	188e18a	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.

[github-actions]

Castiron custom code

Evaluated main: a0dc1bcfcfe0a3834bc85346e3f2e78ec2e74385.

✅ No new custom-code files detected.

102 mixed files remain; 0 existing customizations changed.

Compared a0dc1bcfcfe0 → 188e18a1f095. 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 37645427711 --repo openai/openai-java \
  --name castiron-custom-code-37645427711-1 --dir /tmp/castiron-custom-code-37645427711-1
git apply --stat /tmp/castiron-custom-code-37645427711-1/custom-code.patch
cat /tmp/castiron-custom-code-37645427711-1/custom-code.patch

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

git fetch --no-tags origin a0dc1bcfcfe0a3834bc85346e3f2e78ec2e74385 188e18a1f0959d311e5e865b482a800ba1040580
python3 scripts/castiron/custom_code_report.py report \
  --base a0dc1bcfcfe0a3834bc85346e3f2e78ec2e74385 \
  --head 188e18a1f0959d311e5e865b482a800ba1040580 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-188e18a1f095
cat /tmp/castiron-custom-code-188e18a1f095/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 17.964s for Java SDK PR #1151.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	218ms
tests/chat-completions-create.test.ts	✅ Passed	617ms
tests/chat-completions-stream.test.ts	✅ Passed	860ms
tests/files-content-binary.test.ts	✅ Passed	209ms
tests/files-create-multipart.test.ts	✅ Passed	463ms
tests/files-list-pagination.test.ts	✅ Passed	334ms
tests/initialize-config.test.ts	✅ Passed	143ms
tests/instance-isolation.test.ts	✅ Passed	104ms
tests/models-list.test.ts	✅ Passed	299ms
tests/responses-background-lifecycle.test.ts	✅ Passed	215ms
tests/responses-body-method-errors.test.ts	✅ Passed	559ms
tests/responses-cancel-timeout.test.ts	✅ Passed	237ms
tests/responses-cancel.test.ts	✅ Passed	190ms
tests/responses-compact-retries.test.ts	✅ Passed	460ms
tests/responses-compact.test.ts	✅ Passed	285ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	262ms
tests/responses-create-advanced.test.ts	✅ Passed	1.365s
tests/responses-create-disconnect.test.ts	✅ Passed	1.012s
tests/responses-create-errors.test.ts	✅ Passed	382ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	224ms
tests/responses-create-retries.test.ts	✅ Passed	240ms
tests/responses-create-stream-failures.test.ts	✅ Passed	327ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	333ms
tests/responses-create-stream-wire.test.ts	✅ Passed	7.957s
tests/responses-create-stream.test.ts	✅ Passed	508ms
tests/responses-create-terminal-states.test.ts	✅ Passed	336ms
tests/responses-create-timeout.test.ts	✅ Passed	277ms
tests/responses-create.test.ts	✅ Passed	223ms
tests/responses-delete.test.ts	✅ Passed	238ms
tests/responses-input-items-errors.test.ts	✅ Passed	276ms
tests/responses-input-items-list.test.ts	✅ Passed	361ms
tests/responses-input-items-options.test.ts	✅ Passed	395ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	316ms
tests/responses-input-tokens-count.test.ts	✅ Passed	253ms
tests/responses-malformed-inputs.test.ts	✅ Passed	6.079s
tests/responses-not-found-errors.test.ts	✅ Passed	355ms
tests/responses-parse.test.ts	✅ Passed	602ms
tests/responses-retrieve-retries.test.ts	✅ Passed	893ms
tests/responses-retrieve.test.ts	✅ Passed	262ms
tests/responses-stored-method-errors.test.ts	✅ Passed	953ms
tests/retry-behavior.test.ts	✅ Passed	3.806s
tests/sdk-error-shape.test.ts	✅ Passed	421ms

View OkTest run #37645400039

_{SDK merge (8175b65dfe41) · head (188e18a1f095) · base (a0dc1bcfcfe0) · OkTest (505ac0e34283)}