Changes to Create assistant

Changed in 16 of the 163 revisions of this API.▲43●6○64

1. Sep 3, 20269430b00d75b4○1
2. Aug 14, 20266ac2618eefd7○1
3. Aug 5, 2026ab0c5306e390○1
4. May 13, 202674cbcf73838f▲26●4○27
5. Apr 29, 20256a6c681b1820○6
6. Mar 11, 20256ab43fe7798e▲2●1○5
7. Feb 11, 202596060afbb5b9▲1○2
8. Jan 31, 2025fc164a27fdb9▲3○3
9. Jan 31, 202515156e46769c▲2●1○3
10. Jan 22, 2025bdebcdfcbbde▲3○2
11. Dec 4, 2024223e7c033ac6○1
12. Sep 13, 20244c9e3967c707▲1○1
13. Aug 23, 20245856f8b0c850○2
14. Aug 6, 20248eca3b09b705▲3○7
15. Jul 17, 202412529f330aab▲2
16. Jul 15, 2024493a67abde1a○2

What changed

• Sep 3, 20269430b00d75b4○1See the full diff
  • ○

    added the optional property error/misalignment to the response with the 429 status

    response-optional-property-added

• Aug 14, 20266ac2618eefd7○1See the full diff
  • ○

    added the non-success response with the status 429

    response-non-success-status-added

• Aug 5, 2026ab0c5306e390○1See the full diff
  • ○

    added the new max enum value to the request property reasoning_effort/anyOf[subschema #1]

    request-property-enum-value-added

  This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• May 13, 202674cbcf73838f▲26●4○27See the full diff
  • ▲

    the request property description became not nullable

    request-property-became-not-nullable

  • ▲

    the request property instructions became not nullable

    request-property-became-not-nullable

  • ▲

    the request property metadata became not nullable

    request-property-became-not-nullable

  • ▲

    the request property name became not nullable

    request-property-became-not-nullable

  • ▲

    the request property reasoning_effort became not nullable

    request-property-became-not-nullable

  • ▲

    the request property response_format became not nullable

    request-property-became-not-nullable

  • ▲

    the request property temperature became not nullable

    request-property-became-not-nullable

  • ▲

    the request property tool_resources became not nullable

    request-property-became-not-nullable

  • ▲

    the request property tools/items/oneOf[subschema #3: Function tool]/function/strict became not nullable

    request-property-became-not-nullable

  • ▲

    the request property top_p became not nullable

    request-property-became-not-nullable

  • ▲

    removed the enum value high of the request property reasoning_effort

    request-property-enum-value-removed

  • ▲

    removed the enum value low of the request property reasoning_effort

    request-property-enum-value-removed

  • ▲

    removed the enum value medium of the request property reasoning_effort

    request-property-enum-value-removed

  • ▲

    removed ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 from the response_format request property oneOf list

    request-property-one-of-removed

  • ▲

    the tool_resources request property type changed from object to no type

    request-property-type-changed

  • ▲

    response property description list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property instructions list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property metadata list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property name list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property temperature list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property tools/items/oneOf[subschema #3: Function tool]/function/strict list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property top_p list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    the description response property's maxLength was unset from 512 for the response status 200

    response-property-max-length-unset

  • ▲

    the instructions response property's maxLength was unset from 256000 for the response status 200

    response-property-max-length-unset

  • ▲

    the name response property's maxLength was unset from 256 for the response status 200

    response-property-max-length-unset

  • ▲

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

    response-property-type-changed

  • ●

    removed the request property tool_resources/code_interpreter

    request-property-removed

  • ●

    removed the request property tool_resources/file_search

    request-property-removed

  • ●

    removed the optional property tool_resources/code_interpreter from the response with the 200 status

    response-optional-property-removed

  • ●

    removed the optional property tool_resources/file_search from the response with the 200 status

    response-optional-property-removed

  • ○

    endpoint deprecated

    endpoint-deprecated

  • ○

    added AssistantsApiResponseFormatOption subschema #2 to the response_format request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #1 subschema #2 to the tool_resources request property anyOf list

    request-property-any-of-added

  • ○

    the reasoning_effort request property default value medium was removed

    request-property-default-value-removed

  • ○

    the strict request property default value false was removed

    request-property-default-value-removed

  • ○

    the temperature request property default value 1 was removed

    request-property-default-value-removed

  • ○

    the top_p request property default value 1 was removed

    request-property-default-value-removed

  • ○

    added the new gpt-5 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-5-2025-08-07 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-5-mini enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-5-mini-2025-08-07 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-5-nano enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-5-nano-2025-08-07 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    request property description list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property instructions list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property metadata list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property name list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property reasoning_effort list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property temperature list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property tools/items/oneOf[subschema #3: Function tool]/function/strict list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    request property top_p list-of-types was widened by adding types null to media type application/json

    request-property-list-of-types-widened

  • ○

    added AssistantsApiResponseFormatOption subschema #2 to the response_format response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #1 subschema #2 to the tool_resources response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    the strict response's property default value false was removed for the status 200

    response-property-default-value-removed

  • ○

    the temperature response's property default value 1 was removed for the status 200

    response-property-default-value-removed

  • ○

    the top_p response's property default value 1 was removed for the status 200

    response-property-default-value-removed

  • ○

    removed ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 from the response_format response property oneOf list for the response status 200

    response-property-one-of-removed

  This revision also has 40 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Apr 29, 20256a6c681b1820○6See the full diff
  • ○

    added the new gpt-4.1 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-4.1-2025-04-14 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-4.1-mini enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-4.1-mini-2025-04-14 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-4.1-nano enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-4.1-nano-2025-04-14 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  This revision also has 18 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Mar 11, 20256ab43fe7798e▲2●1○5See the full diff
  • ▲

    the response property response_format became nullable for the status 200

    response-property-became-nullable

  • ▲

    added ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 to the response_format response property oneOf list for the response status 200

    response-property-one-of-added

  • ●

    removed AssistantsApiResponseFormatOption subschema #2 from the response_format request property allOf list

    request-property-all-of-removed

  • ○

    the request property response_format became nullable

    request-property-became-nullable

  • ○

    added the new gpt-4.5-preview enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added the new gpt-4.5-preview-2025-02-27 enum value to the request property model/anyOf[#/components/schemas/AssistantSupportedModels]

    request-property-enum-value-added

  • ○

    added ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 to the response_format request property oneOf list

    request-property-one-of-added

  • ○

    removed AssistantsApiResponseFormatOption subschema #2 from the response_format response property allOf list for the response status 200

    response-property-all-of-removed

• Feb 11, 202596060afbb5b9▲1○2See the full diff
  • ▲

    removed subschema #2 from the model request property anyOf list

    request-property-any-of-removed

  • ○

    added the new optional request property reasoning_effort

    new-optional-request-property

  • ○

    added AssistantSupportedModels to the model request property anyOf list

    request-property-any-of-added

• Jan 31, 2025fc164a27fdb9▲3○3See the full diff
  • ▲

    added AssistantsApiResponseFormatOption subschema #2 to the response_format request property allOf list

    request-property-all-of-added

  • ▲

    the request property response_format became not nullable

    request-property-became-not-nullable

  • ▲

    removed ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 from the response_format request property oneOf list

    request-property-one-of-removed

  • ○

    the request property tool_resources/file_search/vector_stores/items/metadata became nullable

    request-property-became-nullable

  • ○

    added AssistantsApiResponseFormatOption subschema #2 to the response_format response property allOf list for the response status 200

    response-property-all-of-added

  • ○

    removed ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 from the response_format response property oneOf list for the response status 200

    response-property-one-of-removed

• Jan 31, 202515156e46769c▲2●1○3See the full diff
  • ▲

    the response property response_format became nullable for the status 200

    response-property-became-nullable

  • ▲

    added ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 to the response_format response property oneOf list for the response status 200

    response-property-one-of-added

  • ●

    removed AssistantsApiResponseFormatOption subschema #2 from the response_format request property allOf list

    request-property-all-of-removed

  • ○

    the request property response_format became nullable

    request-property-became-nullable

  • ○

    added ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 to the response_format request property oneOf list

    request-property-one-of-added

  • ○

    removed AssistantsApiResponseFormatOption subschema #2 from the response_format response property allOf list for the response status 200

    response-property-all-of-removed

• Jan 22, 2025bdebcdfcbbde▲3○2See the full diff
  • ▲

    added AssistantsApiResponseFormatOption subschema #2 to the response_format request property allOf list

    request-property-all-of-added

  • ▲

    the request property response_format became not nullable

    request-property-became-not-nullable

  • ▲

    removed ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 from the response_format request property oneOf list

    request-property-one-of-removed

  • ○

    added AssistantsApiResponseFormatOption subschema #2 to the response_format response property allOf list for the response status 200

    response-property-all-of-added

  • ○

    removed ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema subschema #1 from the response_format response property oneOf list for the response status 200

    response-property-one-of-removed

• Dec 4, 2024223e7c033ac6○1See the full diff
  • ○

    added the new gpt-4o-2024-11-20 enum value to the request property model/anyOf[subschema #2]

    request-property-enum-value-added

• Sep 13, 20244c9e3967c707▲1○1See the full diff
  • ▲

    the request property tools/items/oneOf[subschema #2: FileSearch tool]/file_search/ranking_options/score_threshold became required

    request-property-became-required

  • ○

    the response property tools/items/oneOf[subschema #2: FileSearch tool]/file_search/ranking_options/score_threshold became required for the status 200

    response-property-became-required

• Aug 23, 20245856f8b0c850○2See the full diff
  • ○

    added the new optional request property tools/items/oneOf[subschema #2: FileSearch tool]/file_search/ranking_options

    new-optional-request-property

  • ○

    added the optional property tools/items/oneOf[subschema #2: FileSearch tool]/file_search/ranking_options to the response with the 200 status

    response-optional-property-added

• Aug 6, 20248eca3b09b705▲3○7See the full diff
  • ▲

    removed the enum value none of the request property response_format/oneOf[subschema #1]

    request-property-enum-value-removed

  • ▲

    removed AssistantsApiResponseFormat from the response_format request property oneOf list

    request-property-one-of-removed

  • ▲

    added ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema to the response_format response property oneOf list for the response status 200

    response-property-one-of-added

  • ○

    added the new optional request property tools/items/oneOf[subschema #3: Function tool]/function/strict

    new-optional-request-property

  • ○

    added the new gpt-4o-2024-08-06 enum value to the request property model/anyOf[subschema #2]

    request-property-enum-value-added

  • ○

    added the new gpt-4o-2024-08-06 enum value to the request property model/anyOf[subschema #2]

    request-property-enum-value-added

  • ○

    added ResponseFormatText ResponseFormatJsonObject ResponseFormatJsonSchema to the response_format request property oneOf list

    request-property-one-of-added

  • ○

    added the optional property tools/items/oneOf[subschema #3: Function tool]/function/strict to the response with the 200 status

    response-optional-property-added

  • ○

    removed the none enum value from the response_format/oneOf[subschema #1] response property for the response status 200

    response-property-enum-value-removed

  • ○

    removed AssistantsApiResponseFormat from the response_format response property oneOf list for the response status 200

    response-property-one-of-removed

  This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Jul 17, 202412529f330aab▲2See the full diff
  • ▲

    removed the enum value gpt-4o-mini of the request property model/anyOf[subschema #2]

    request-property-enum-value-removed

  • ▲

    removed the enum value gpt-4o-mini-2024-07-18 of the request property model/anyOf[subschema #2]

    request-property-enum-value-removed

• Jul 15, 2024493a67abde1a○2See the full diff
  • ○

    added the new gpt-4o-mini enum value to the request property model/anyOf[subschema #2]

    request-property-enum-value-added

  • ○

    added the new gpt-4o-mini-2024-07-18 enum value to the request property model/anyOf[subschema #2]

    request-property-enum-value-added