• docs(openapi): tighten the reasoning_effort descriptionlatestno API changesDocsc0f7d7d2026-09-04 20:33
• feat(api): strict OpenAI compatibility for white-label deployments14Docs8180ac62026-09-03 23:05

  Change detail

  5 changes across 1 operation

  AllBreakingWarningInfo

  • POST/openai/v1/chat/completions
    • warning

      added the new default enum value to the service_tier response property for the response status 200

    • info

      added the new max enum value to the request property reasoning_effort

    • info

      added the new minimal enum value to the request property reasoning_effort

    • info

      added the new xhigh enum value to the request property reasoning_effort

    • info

      added the optional property choices/items/message/refusal to the response with the 200 status

• feat(api): support Qwen3.8 reasoning controls in Responses12Docs369ed5e2026-08-25 03:28

  Change detail

  3 changes across 1 operation

  AllBreakingWarningInfo

  • POST/openai/v1/responses
    • warning

      added the new none enum value to the reasoning/effort response property for the response status 200

    • info

      the effort request property default value medium was removed

    • info

      added the new none enum value to the request property reasoning/effort

• fix(api): disable Qwen3.8 reasoning by default1Docsee26da12026-08-25 03:16

  Change detail

  1 change across 1 operation

  AllBreakingWarningInfo

  • POST/openai/v1/chat/completions
    • info

      added the new qwen/qwen3.8-27b enum value to the request property model/anyOf[subschema #2]

• Build SDKno API changesDocs439e6a42026-08-11 18:48
• release: 1.3.0 (#263)22Docs1df552f2026-06-21 22:53

  Change detail

  4 changes across 1 operation

  AllBreakingWarningInfo

  • POST/openai/v1/chat/completions
    • breaking

      the usage_breakdown response's property type changed from object to no type for status 200

    • breaking

      removed the required property usage_breakdown/models from the response with the 200 status

    • info

      added the new qwen/qwen3.6-27b enum value to the request property model/anyOf[subschema #2]

    • info

      added ChatCompletionUsageBreakdown to the usage_breakdown response property allOf list for the response status 200

• release: 1.1.0 (#249)no API changesDocsb7484452025-12-18 22:24
• release: 1.0.0 (#248)no API changesDocs04c54822025-12-16 00:22
• release: 0.37.0 (#246)3Docs1f2d9e02025-11-26 22:09

  Change detail

  3 changes across 1 operation and 1 model

  AllBreakingWarningInfo

  • POST/openai/v1/chat/completions
    • info

      added ChatCompletionRequestMessageContentPartDocument to the messages/items/oneOf[subschema #2: User message]/content/oneOf[subschema #2: Array of content parts]/items request property oneOf list

    • info

      added ChatCompletionRequestMessageContentPartDocument to the messages/items/oneOf[subschema #4: Tool message]/content/oneOf[subschema #2: Array of content parts]/items request property oneOf list

  • Models
    • info

      removed the schema CodeExecutionOutput

• release: 0.36.0 (#245)7Docs1ce93de2025-11-18 23:48
• release: 0.35.0 (#244)1Docs9bd581f2025-11-12 20:53
• release: 0.34.0 (#243)123Docs56b2d662025-10-21 01:16
• release: 0.33.0 (#242)3Docs14580072025-09-27 23:01
• release: 0.32.0 (#241)310Docs6f4a8292025-09-04 17:47
• release: 0.31.0 (#238)78Docs15d5c162025-09-02 16:19
• release: 0.30.0 (#237)312Docsb5bce392025-08-05 23:01
• release: 0.29.0 (#235)1Docs7970e542025-07-23 18:23
• release: 0.27.0 (#232)4Docsad614a02025-07-11 20:14
• release: 0.26.0 (#231)1Docs197675b2025-06-25 23:32
• release: 0.25.0 (#230)14Docsee057222025-06-12 16:15
• release: 0.24.0 (#229)2Docsba6ef152025-06-11 17:23
• release: 0.23.0 (#228)8Docs5fc84a42025-05-29 18:22
• release: 0.22.0 (#227)118Docs321bbcf2025-05-16 19:50
• release: 0.21.0 (#226)2Docs54567062025-05-02 16:06
• release: 0.20.0 (#220)59Docsd9c22f02025-04-22 23:25
• release: 0.18.0 (#203)3Docs8799c792025-04-01 23:45
• release: 0.17.0 (#200)77Docs753f0f42025-03-19 02:51
• release: 0.16.0 (#181)no API changesDocs7d196102025-03-11 23:26
• release: 0.14.0 (#175)1Docsff834b42025-02-03 21:41
• release: 0.13.0 (#169)10Docscfb7ab42025-01-29 19:35
• release: 0.12.0 (#165)2Docse04286d2025-01-11 02:53
• release: 0.11.0 (#162)1Docs4a6fa472025-01-09 05:40
• release: 0.10.0 (#148)1Docsc37f2432025-01-08 21:33
• release: 0.9.1 (#142)no API changesDocs82d09032024-12-15 08:52
• release: 0.9.0 (#132)11Docs0faa7652024-12-03 20:11
• release: 0.8.0 (#123)no API changesDocs6176a972024-11-11 23:16
• feat(api): OpenAPI spec update via Stainless API (#112)161Docs5cd4b792024-08-27 16:04
• feat(api): OpenAPI spec update via Stainless API (#110)no API changesDocscf51b702024-08-16 14:58
• feat(api): OpenAPI spec update via Stainless API (#104)no API changesDocs23dad7b2024-07-26 17:49
• feat(api): OpenAPI spec update via Stainless API (#101)12Docs956c8152024-06-26 17:21
• feat(api): update via SDK Studio (#99)9Docs8d22b7a2024-06-26 11:19
• feat(api): Tool calling features38Docs2f39a2b2024-05-25 02:45
• feat(api): Define OpenAI-compatible models151778Docsebfa13b2024-05-22 22:10
• feat(api): Improve types91859Docs07519e32024-05-21 22:38
• feat(api): Add support for image_url in chat user messages1Docs144fe9d2024-05-16 01:54
• feat(api): Add embeddings endpoint11Docs3a02ebd2024-05-15 02:33
• chore(api): add response objects for translations and transcriptions21Docs5b1b0dc2024-05-15 02:19
• chore(api): Internal SDK changesDocse1710842024-05-06 19:10
• feat: Add transcription and translation endpoints3ca9b9d2024-03-08 07:23
• feat: Add initial Stainless SDKa6c643b2024-02-15 07:16

Revisions go back to the API's first capture.