Changes to Create a Message

Changed in 30 of the 68 revisions of this API.▲30●12○252

1. Sep 1, 2026d1d189d791d1●2○18
2. Aug 25, 2026dca67b3e5234○4
3. Aug 19, 202667ee007cda1c○11
4. Aug 14, 2026e9d8152420c3▲1○1
5. Aug 13, 20266e9020ec2b41○30
6. Aug 6, 2026538e9bd0db77▲5○6
7. Jul 24, 2026a97790bd7f18▲4○23
8. Jul 21, 202697200025c28e●2
9. Jul 1, 20269c991bee394d○2
10. Jun 30, 20267caa9a75ddbc○11
11. Jun 29, 20264465f98f96c1○1
12. Jun 24, 202682c21eb736c8●3○1
13. Jun 18, 2026063bcb9d6cf9▲5○31
14. Jun 9, 2026996eb28b2ab6●1
15. Jun 9, 202600259327305f▲4●1○16
16. Jun 6, 2026546c704d347b▲2●1○9
17. May 28, 2026f9d488f9290d●1○13
18. May 19, 202640e330aba8bc○1
19. May 13, 2026400ce646c6b2○2
20. Apr 30, 20266edc6519fd32○1
21. Apr 16, 2026e0696f59ae07▲2○11
22. Apr 9, 2026d87d3ef6f636▲2●1○6
23. Apr 8, 202669486316563e▲1○6
24. Apr 1, 2026efe26b096126○1
25. Mar 18, 2026dd2dcd00a757○1
26. Mar 16, 20267fce94a3c9f7▲2○8
27. Feb 19, 202629a6b7ba5194○1
28. Feb 18, 20265387c517ad6a○20
29. Feb 17, 202653a0f3638030▲2○15
30. Feb 7, 2026fee5dc365a49○2

What changed

• Sep 1, 2026d1d189d791d1●2○18See the full diff
  • ●

    removed the request property tools/items/oneOf[subschema #14: ComputerToolset_20260801]/allowed_callers

    request-property-removed

  • ●

    removed the request property tools/items/oneOf[subschema #8: BrowserToolset_20260801]/allowed_callers

    request-property-removed

  • ○

    added the new optional request property fallbacks/anyOf[subschema #1]/items/thinking/anyOf[subschema #1]/oneOf[subschema #1: ThinkingConfigEnabled]/block_binding

    new-optional-request-property

  • ○

    added the new optional request property fallbacks/anyOf[subschema #1]/items/thinking/anyOf[subschema #1]/oneOf[subschema #3: ThinkingConfigAdaptive]/block_binding

    new-optional-request-property

  • ○

    added the new optional request property messages/items/clear_at

    new-optional-request-property

  • ○

    added the new optional request property messages/items/output_config

    new-optional-request-property

  • ○

    added the new optional request property thinking/oneOf[subschema #1: ThinkingConfigEnabled]/block_binding

    new-optional-request-property

  • ○

    added the new optional request property thinking/oneOf[subschema #3: ThinkingConfigAdaptive]/block_binding

    new-optional-request-property

  • ○

    added subschema #2 subschema #3 to the fallbacks/anyOf[subschema #1]/items/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #23: RequestFallbackBlock]/from/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #23: RequestFallbackBlock]/to/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the tools/items/oneOf[subschema #25: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added the optional property input_transformations to the response with the 200 status

    response-optional-property-added

  • ○

    added subschema #2 subschema #3 to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/from/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/to/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #3 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #4: FallbackMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Aug 25, 2026dca67b3e5234○4See the full diff
  • ○

    added the new updates enum value to the request property fallbacks/anyOf[subschema #1]/items/thinking/anyOf[subschema #1]/oneOf[subschema #1: ThinkingConfigEnabled]/display/anyOf[subschema #1: ThinkingDisplayMode]/

    request-property-enum-value-added

  • ○

    added the new updates enum value to the request property fallbacks/anyOf[subschema #1]/items/thinking/anyOf[subschema #1]/oneOf[subschema #3: ThinkingConfigAdaptive]/display/anyOf[subschema #1: ThinkingDisplayMode]/

    request-property-enum-value-added

  • ○

    added the new updates enum value to the request property thinking/oneOf[subschema #1: ThinkingConfigEnabled]/display/anyOf[subschema #1: ThinkingDisplayMode]/

    request-property-enum-value-added

  • ○

    added the new updates enum value to the request property thinking/oneOf[subschema #3: ThinkingConfigAdaptive]/display/anyOf[subschema #1: ThinkingDisplayMode]/

    request-property-enum-value-added

• Aug 19, 202667ee007cda1c○11See the full diff
  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #11: RequestWebFetchToolResultBlock]/content/anyOf[subschema #2: RequestWebFetchResultBlock]/content/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #2: RequestImageBlock]/transformations

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #2: RequestImageBlock]/transformations

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #2: RequestImageBlock]/transformations

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #7: RequestToolUseBlock]/toolset_name

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #2: RequestImageBlock]/transformations

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #2: RequestImageBlock]/transformations

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/toolset_name

    new-optional-request-property

  • ○

    added browser_state discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/ request property

    request-property-discriminator-mapping-added

  • ○

    added BetaBrowserToolset_20260801 BetaComputerToolset_20260801 to the tools/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added BetaRequestBrowserStateBlock to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added the optional property content/items/oneOf[subschema #4: ResponseToolUseBlock]/toolset_name to the response with the 200 status

    response-optional-property-added

• Aug 14, 2026e9d8152420c3▲1○1See the full diff
  • ▲

    removed BetaRequestMidConvSystemBlock from the messages/items/content/anyOf[subschema #2]/items/ request property oneOf list

    request-property-one-of-removed

  • ○

    removed mid_conv_system discriminator mapping keys from the messages/items/content/anyOf[subschema #2]/items/ request property

    request-property-discriminator-mapping-deleted

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

• Aug 13, 20266e9020ec2b41○30See the full diff
  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #11: RequestWebFetchToolResultBlock]/content/anyOf[subschema #2: RequestWebFetchResultBlock]/content/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #11: RequestWebFetchToolResultBlock]/content/anyOf[subschema #2: RequestWebFetchResultBlock]/content/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #11: RequestWebFetchToolResultBlock]/content/anyOf[subschema #2: RequestWebFetchResultBlock]/content/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #18: RequestMCPToolResultBlock]/content/anyOf[subschema #2: beta_mcp_tool_result_block_param_content]/items/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #18: RequestMCPToolResultBlock]/content/anyOf[subschema #2: beta_mcp_tool_result_block_param_content]/items/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #18: RequestMCPToolResultBlock]/content/anyOf[subschema #2: beta_mcp_tool_result_block_param_content]/items/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #21: RequestMidConvSystemBlock]/content/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #21: RequestMidConvSystemBlock]/content/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #21: RequestMidConvSystemBlock]/content/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestSearchResultBlock]/content/items/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestSearchResultBlock]/content/items/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestSearchResultBlock]/content/items/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestSearchResultBlock]/content/items/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestSearchResultBlock]/content/items/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #3: RequestSearchResultBlock]/content/items/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #8: RequestToolResultBlock]/content/anyOf[subschema #2]/items/oneOf[subschema #4: RequestDocumentBlock]/source/oneOf[subschema #3: ContentBlockSource]/content/anyOf[subschema #2: beta_content_block_source_content]/items/oneOf[subschema #1: RequestTextBlock]/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the system/anyOf[subschema #2]/items/citations/anyOf[subschema #1]/items/oneOf[subschema #1: RequestCharLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the system/anyOf[subschema #2]/items/citations/anyOf[subschema #1]/items/oneOf[subschema #2: RequestPageLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

  • ○

    the system/anyOf[subschema #2]/items/citations/anyOf[subschema #1]/items/oneOf[subschema #3: RequestContentBlockLocationCitation]/document_title/anyOf[subschema #1]/ request property's maxLength was increased from 255 to 500

    request-property-max-length-increased

• Aug 6, 2026538e9bd0db77▲5○6See the full diff
  • ▲

    removed subschema #17 subschema #18 from the fallbacks/anyOf[subschema #1]/items/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 from the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #24: RequestFallbackBlock]/from/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 from the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #24: RequestFallbackBlock]/to/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 from the tools/items/oneOf[subschema #23: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/from/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/to/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #4: FallbackMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

• Jul 24, 2026a97790bd7f18▲4○23See the full diff
  • ▲

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock -> subschema #24: RequestFallbackBlock]/from/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock -> subschema #24: RequestFallbackBlock]/to/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the tools/items/oneOf[subschema #23: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-removed

  • ○

    added BetaFallbackCreditTokenParam to the fallback_credit_token request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock -> subschema #24: RequestFallbackBlock]/from/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock -> subschema #24: RequestFallbackBlock]/to/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the tools/items/oneOf[subschema #23: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added tool_addition tool_removal discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/ request property

    request-property-discriminator-mapping-added

  • ○

    added tool_addition tool_removal discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #21: RequestMidConvSystemBlock]/content/items/ request property

    request-property-discriminator-mapping-added

  • ○

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

    request-property-list-of-types-widened

  • ○

    added BetaRequestToolAdditionBlock BetaRequestToolRemovalBlock to the messages/items/content/anyOf[subschema #2]/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added BetaRequestToolAdditionBlock BetaRequestToolRemovalBlock to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #21: RequestMidConvSystemBlock]/content/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/from/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/to/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #5 subschema #6 subschema #7 subschema #9 subschema #13 subschema #14 subschema #17 subschema #18 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #4: FallbackMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/from/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/to/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #5 subschema #6 subschema #8 subschema #12 subschema #13 subschema #16 subschema #17 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #4: FallbackMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    added the required property usage/fallback_credit to the response with the 200 status

    response-required-property-added

• Jul 21, 202697200025c28e●2See the full diff
  • ●

    added the new general_harms enum value to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/trigger/category/anyOf[subschema #1: RefusalCategory]/ response property for the response status 200

    response-property-enum-value-added

  • ●

    added the new general_harms enum value to the stop_details/anyOf[subschema #1: RefusalStopDetails]/category/anyOf[subschema #1: RefusalCategory]/ response property for the response status 200

    response-property-enum-value-added

• Jul 1, 20269c991bee394d○2See the full diff
  • ○

    removed the military_weapons enum value from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/trigger/category/anyOf[subschema #1: RefusalCategory]/ response property for the response status 200

    response-property-enum-value-removed

  • ○

    removed the military_weapons enum value from the stop_details/anyOf[subschema #1: RefusalStopDetails]/category/anyOf[subschema #1: RefusalCategory]/ response property for the response status 200

    response-property-enum-value-removed

  This revision also has 14 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Jun 30, 20267caa9a75ddbc○11See the full diff
  • ○

    added subschema #2 to the fallbacks/anyOf[subschema #1]/items/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock]/from/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock]/to/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 to the tools/items/oneOf[subschema #23: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/from/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/to/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

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

    response-property-any-of-added

  • ○

    added subschema #2 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #4: FallbackMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

• Jun 29, 20264465f98f96c1○1See the full diff
  • ○

    added BetaWebSearchTool_20260318 BetaWebFetchTool_20260318 to the tools/items/ request property oneOf list

    request-property-one-of-added

• Jun 24, 202682c21eb736c8●3○1See the full diff
  • ●

    removed the request property user_profile_id

    request-property-removed

  • ●

    added the new military_weapons enum value to the content/items/oneOf[subschema #17: ResponseFallbackBlock]/trigger/category/anyOf[subschema #1: RefusalCategory]/ response property for the response status 200

    response-property-enum-value-added

  • ●

    added the new military_weapons enum value to the stop_details/anyOf[subschema #1: RefusalStopDetails]/category/anyOf[subschema #1: RefusalCategory]/ response property for the response status 200

    response-property-enum-value-added

  • ○

    added the new optional header request parameter anthropic-user-profile-id

    new-optional-request-parameter

• Jun 18, 2026063bcb9d6cf9▲5○31See the full diff
  • ▲

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the fallbacks/anyOf[subschema #1]/items/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock]/from/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock]/to/model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the tools/items/oneOf[subschema #20: AdvisorTool_20260301 -> subschema #21: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-removed

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #22: RequestFallbackBlock]/trigger

    new-optional-request-property

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #10: TextEditor_20241022 -> subschema #11: TextEditor_20241022]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #11: ComputerUseTool_20251124 -> subschema #12: ComputerUseTool_20251124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #12: TextEditor_20250124 -> subschema #13: TextEditor_20250124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #13: TextEditor_20250429 -> subschema #14: TextEditor_20250429]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #14: TextEditor_20250728 -> subschema #15: TextEditor_20250728]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #15: WebSearchTool_20250305 -> subschema #16: WebSearchTool_20250305]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #16: WebFetchTool_20250910 -> subschema #17: WebFetchTool_20250910]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #17: WebSearchTool_20260209 -> subschema #18: WebSearchTool_20260209]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #18: WebFetchTool_20260209 -> subschema #19: WebFetchTool_20260209]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #19: WebFetchTool_20260309 -> subschema #20: WebFetchTool_20260309]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #1: Tool]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #20: AdvisorTool_20260301 -> subschema #21: AdvisorTool_20260301]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #21: ToolSearchToolBM25_20251119 -> subschema #22: ToolSearchToolBM25_20251119]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #22: ToolSearchToolRegex_20251119 -> subschema #23: ToolSearchToolRegex_20251119]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #2: BashTool_20241022]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #3: BashTool_20250124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #4: CodeExecutionTool_20250522]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #5: CodeExecutionTool_20250825]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #6: CodeExecutionTool_20260120]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #7: ComputerUseTool_20241022 -> subschema #8: ComputerUseTool_20241022]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #8: MemoryTool_20250818 -> subschema #9: MemoryTool_20250818]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260521 enum value to the request property tools/items/oneOf[subschema #9: ComputerUseTool_20250124 -> subschema #10: ComputerUseTool_20250124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added BetaCodeExecutionTool_20260521 to the tools/items/ request property oneOf list

    request-property-one-of-added

  • ○

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/from/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the content/items/oneOf[subschema #17: ResponseFallbackBlock]/to/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #4: FallbackMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    added the required property content/items/oneOf[subschema #17: ResponseFallbackBlock]/trigger to the response with the 200 status

    response-required-property-added

  This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Jun 9, 2026996eb28b2ab6●1See the full diff
  • ●

    added the new frontier_llm enum value to the stop_details/anyOf[subschema #1: RefusalStopDetails]/category/anyOf[subschema #1]/ response property for the response status 200

    response-property-enum-value-added

• Jun 9, 202600259327305f▲4●1○16See the full diff
  • ▲

    removed subschema #4 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #4 from the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-removed

  • ▲

    added BetaFallbackMessageIterationUsage to the usage/iterations/anyOf[subschema #1]/items/ response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaResponseFallbackBlock to the content/items/ response property oneOf list for the response status 200

    response-property-one-of-added

  • ●

    added the new reasoning_extraction enum value to the stop_details/anyOf[subschema #1: RefusalStopDetails]/category/anyOf[subschema #1]/ response property for the response status 200

    response-property-enum-value-added

  • ○

    added the new optional request property fallback_credit_token

    new-optional-request-property

  • ○

    added the new optional request property fallbacks

    new-optional-request-property

  • ○

    added subschema #2 subschema #3 subschema #6 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 subschema #3 subschema #6 to the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added fallback discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/ request property

    request-property-discriminator-mapping-added

  • ○

    added BetaRequestFallbackBlock to the messages/items/content/anyOf[subschema #2]/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added subschema #2 subschema #3 subschema #6 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #3 subschema #6 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed subschema #4 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #4 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    added fallback discriminator mapping keys to the content/items/ response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added fallback_message discriminator mapping keys to the usage/iterations/anyOf[subschema #1]/items/ response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added the required property stop_details/anyOf[subschema #1: RefusalStopDetails]/fallback_credit_token to the response with the 200 status

    response-required-property-added

  • ○

    added the required property stop_details/anyOf[subschema #1: RefusalStopDetails]/fallback_has_prefill_claim to the response with the 200 status

    response-required-property-added

  • ○

    added the required property stop_details/anyOf[subschema #1: RefusalStopDetails]/recommended_model to the response with the 200 status

    response-required-property-added

  • ○

    added the required property usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #1: MessageIterationUsage]/model to the response with the 200 status

    response-required-property-added

• Jun 6, 2026546c704d347b▲2●1○9See the full diff
  • ▲

    removed subschema #13 subschema #14 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #13 subschema #14 from the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-removed

  • ●

    added the new model_not_found enum value to the content/items/oneOf[subschema #8: ResponseAdvisorToolResultBlock]/content/anyOf[subschema #1: ResponseAdvisorToolResultError]/error_code response property for the response status 200

    response-property-enum-value-added

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #16: RequestToolSearchToolResultBlock]/content/anyOf[subschema #1: RequestToolSearchToolResultError]/error_message

    new-optional-request-property

  • ○

    added the new optional request property tools/items/oneOf[subschema #20: AdvisorTool_20260301]/max_tokens

    new-optional-request-property

  • ○

    added subschema #13 subschema #14 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #13 subschema #14 to the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added the new model_not_found enum value to the request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #12: RequestAdvisorToolResultBlock]/content/anyOf[subschema #1: RequestAdvisorToolResultError]/error_code

    request-property-enum-value-added

  • ○

    added subschema #13 subschema #14 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #13 subschema #14 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed subschema #13 subschema #14 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #13 subschema #14 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

• May 28, 2026f9d488f9290d●1○13See the full diff
  • ●

    added the new url_not_in_prior_context enum value to the content/items/oneOf[subschema #7: ResponseWebFetchToolResultBlock]/content/anyOf[subschema #1: ResponseWebFetchToolResultError]/error_code response property for the response status 200

    response-property-enum-value-added

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #12: RequestAdvisorToolResultBlock]/content/anyOf[subschema #2: RequestAdvisorResultBlock]/stop_reason

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #12: RequestAdvisorToolResultBlock]/content/anyOf[subschema #3: RequestAdvisorRedactedResultBlock]/stop_reason

    new-optional-request-property

  • ○

    added subschema #2 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 to the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added mid_conv_system discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/ request property

    request-property-discriminator-mapping-added

  • ○

    added the new system enum value to the request property messages/items/role

    request-property-enum-value-added

  • ○

    added the new url_not_in_prior_context enum value to the request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #11: RequestWebFetchToolResultBlock]/content/anyOf[subschema #1: RequestWebFetchToolResultError]/error_code

    request-property-enum-value-added

  • ○

    added BetaRequestMidConvSystemBlock to the messages/items/content/anyOf[subschema #2]/items/ request property oneOf list

    request-property-one-of-added

  • ○

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

    response-property-any-of-added

  • ○

    added subschema #2 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added the required property content/items/oneOf[subschema #8: ResponseAdvisorToolResultBlock]/content/anyOf[subschema #2: ResponseAdvisorResultBlock]/stop_reason to the response with the 200 status

    response-required-property-added

  • ○

    added the required property content/items/oneOf[subschema #8: ResponseAdvisorToolResultBlock]/content/anyOf[subschema #3: ResponseAdvisorRedactedResultBlock]/stop_reason to the response with the 200 status

    response-required-property-added

  • ○

    added the required property usage/output_tokens_details to the response with the 200 status

    response-required-property-added

• May 19, 202640e330aba8bc○1See the full diff
  • ○

    the request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #20: RequestCompactionBlock]/content became optional

    request-property-became-optional

• May 13, 2026400ce646c6b2○2See the full diff
  • ○

    added the new optional request property diagnostics

    new-optional-request-property

  • ○

    added the required property diagnostics to the response with the 200 status

    response-required-property-added

• Apr 30, 20266edc6519fd32○1See the full diff
  • ○

    the max_tokens request property's min was decreased from 1.00 to 0.00

    request-property-min-decreased

• Apr 16, 2026e0696f59ae07▲2○11See the full diff
  • ▲

    removed subschema #13 subschema #14 subschema #15 subschema #16 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    removed subschema #13 subschema #14 subschema #15 subschema #16 from the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-removed

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #20: RequestCompactionBlock]/encrypted_content

    new-optional-request-property

  • ○

    added the new optional request property output_config/task_budget

    new-optional-request-property

  • ○

    added the new optional request property user_profile_id

    new-optional-request-property

  • ○

    added subschema #2 subschema #14 subschema #15 subschema #16 subschema #17 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #2 subschema #14 subschema #15 subschema #16 subschema #17 to the tools/items/oneOf[subschema #20: AdvisorTool_20260301]/model request property anyOf list

    request-property-any-of-added

  • ○

    added the new xhigh enum value to the request property output_config/effort/anyOf[subschema #1: EffortLevel]/

    request-property-enum-value-added

  • ○

    added subschema #2 subschema #14 subschema #15 subschema #16 subschema #17 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 subschema #14 subschema #15 subschema #16 subschema #17 to the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed subschema #13 subschema #14 subschema #15 subschema #16 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #13 subschema #14 subschema #15 subschema #16 from the usage/iterations/anyOf[subschema #1]/items/oneOf[subschema #3: AdvisorMessageIterationUsage]/model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    added the required property content/items/oneOf[subschema #16: ResponseCompactionBlock]/encrypted_content to the response with the 200 status

    response-required-property-added

• Apr 9, 2026d87d3ef6f636▲2●1○6See the full diff
  • ▲

    added BetaAdvisorMessageIterationUsage to the usage/iterations/anyOf[subschema #1]/items/ response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaResponseAdvisorToolResultBlock to the content/items/ response property oneOf list for the response status 200

    response-property-one-of-added

  • ●

    added the new advisor enum value to the content/items/oneOf[subschema #5: ResponseServerToolUseBlock]/name response property for the response status 200

    response-property-enum-value-added

  • ○

    added advisor_tool_result discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/ request property

    request-property-discriminator-mapping-added

  • ○

    added the new advisor enum value to the request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #9: RequestServerToolUseBlock]/name

    request-property-enum-value-added

  • ○

    added BetaAdvisorTool_20260301 to the tools/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added BetaRequestAdvisorToolResultBlock to the messages/items/content/anyOf[subschema #2]/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added advisor_message discriminator mapping keys to the usage/iterations/anyOf[subschema #1]/items/ response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added advisor_tool_result discriminator mapping keys to the content/items/ response property for the response status 200

    response-property-discriminator-mapping-added

• Apr 8, 202669486316563e▲1○6See the full diff
  • ▲

    removed subschema #2 from the model request property anyOf list

    request-property-any-of-removed

  • ○

    added subschema #2 subschema #3 to the model request property anyOf list

    request-property-any-of-added

  • ○

    request property temperature deprecated

    request-property-deprecated

  • ○

    request property top_k deprecated

    request-property-deprecated

  • ○

    request property top_p deprecated

    request-property-deprecated

  • ○

    added subschema #2 subschema #3 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed subschema #2 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

• Apr 1, 2026efe26b096126○1See the full diff
  • ○

    added the required property stop_details to the response with the 200 status

    response-required-property-added

• Mar 18, 2026dd2dcd00a757○1See the full diff
  • ○

    the metadata/user_id/anyOf[subschema #1]/ request property's maxLength was increased from 256 to 512

    request-property-max-length-increased

• Mar 16, 20267fce94a3c9f7▲2○8See the full diff
  • ▲

    removed subschema #3 subschema #6 subschema #7 subschema #8 subschema #9 subschema #10 subschema #11 subschema #14 subschema #15 subschema #16 subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 subschema #22 subschema #23 from the model request property anyOf list

    request-property-any-of-removed

  • ▲

    added BetaMessageIterationUsage BetaCompactionIterationUsage to the usage/iterations/anyOf[subschema #1]/items/ response property oneOf list for the response status 200

    response-property-one-of-added

  • ○

    added the new optional request property thinking/oneOf[subschema #1: ThinkingConfigEnabled]/display

    new-optional-request-property

  • ○

    added the new optional request property thinking/oneOf[subschema #3: ThinkingConfigAdaptive]/display

    new-optional-request-property

  • ○

    added subschema #3 subschema #4 subschema #5 subschema #8 subschema #9 subschema #10 subschema #11 subschema #12 subschema #13 subschema #16 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added BetaWebFetchTool_20260309 to the tools/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added subschema #3 subschema #4 subschema #5 subschema #8 subschema #9 subschema #10 subschema #11 subschema #12 subschema #13 subschema #16 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed BetaMessageIterationUsage BetaCompactionIterationUsage from the usage/iterations/anyOf[subschema #1]/items/ response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #3 subschema #6 subschema #7 subschema #8 subschema #9 subschema #10 subschema #11 subschema #14 subschema #15 subschema #16 subschema #17 subschema #18 subschema #19 subschema #20 subschema #21 subschema #22 subschema #23 from the model response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    added discriminator to usage/iterations/anyOf[subschema #1]/items/ response property for the response status 200

    response-property-discriminator-added

• Feb 19, 202629a6b7ba5194○1See the full diff
  • ○

    added the new optional request property cache_control

    new-optional-request-property

• Feb 18, 20265387c517ad6a○20See the full diff
  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #10: TextEditor_20241022]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #11: ComputerUseTool_20251124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #12: TextEditor_20250124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #13: TextEditor_20250429]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #14: TextEditor_20250728]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #15: WebSearchTool_20250305]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #16: WebFetchTool_20250910]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #17: WebSearchTool_20260209]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #18: WebFetchTool_20260209]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #19: ToolSearchToolBM25_20251119]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #1: Tool]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #20: ToolSearchToolRegex_20251119]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #2: BashTool_20241022]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #3: BashTool_20250124]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #4: CodeExecutionTool_20250522]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #5: CodeExecutionTool_20250825]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #6: CodeExecutionTool_20260120]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #7: ComputerUseTool_20241022]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #8: MemoryTool_20250818]/allowed_callers/items/

    request-property-enum-value-added

  • ○

    added the new code_execution_20260120 enum value to the request property tools/items/oneOf[subschema #9: ComputerUseTool_20250124]/allowed_callers/items/

    request-property-enum-value-added

• Feb 17, 202653a0f3638030▲2○15See the full diff
  • ▲

    added BetaServerToolCaller_20260120 to the content/items/oneOf[subschema #4: ResponseToolUseBlock]/caller response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaServerToolCaller_20260120 to the content/items/oneOf[subschema #5: ResponseServerToolUseBlock]/caller response property oneOf list for the response status 200

    response-property-one-of-added

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #10: RequestWebSearchToolResultBlock]/caller

    new-optional-request-property

  • ○

    added the new optional request property messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #11: RequestWebFetchToolResultBlock]/caller

    new-optional-request-property

  • ○

    added BetaRequestEncryptedCodeExecutionResultBlock to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #12: RequestCodeExecutionToolResultBlock]/content request property anyOf list

    request-property-any-of-added

  • ○

    added subschema #3 to the model request property anyOf list

    request-property-any-of-added

  • ○

    added code_execution_20260120 discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #7: RequestToolUseBlock]/caller request property

    request-property-discriminator-mapping-added

  • ○

    added code_execution_20260120 discriminator mapping keys to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #9: RequestServerToolUseBlock]/caller request property

    request-property-discriminator-mapping-added

  • ○

    added BetaCodeExecutionTool_20260120 BetaWebSearchTool_20260209 BetaWebFetchTool_20260209 to the tools/items/ request property oneOf list

    request-property-one-of-added

  • ○

    added BetaServerToolCaller_20260120 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #7: RequestToolUseBlock]/caller request property oneOf list

    request-property-one-of-added

  • ○

    added BetaServerToolCaller_20260120 to the messages/items/content/anyOf[subschema #2]/items/oneOf[subschema #9: RequestServerToolUseBlock]/caller request property oneOf list

    request-property-one-of-added

  • ○

    added the optional property content/items/oneOf[subschema #6: ResponseWebSearchToolResultBlock]/caller to the response with the 200 status

    response-optional-property-added

  • ○

    added the optional property content/items/oneOf[subschema #7: ResponseWebFetchToolResultBlock]/caller to the response with the 200 status

    response-optional-property-added

  • ○

    added BetaResponseEncryptedCodeExecutionResultBlock to the content/items/oneOf[subschema #8: ResponseCodeExecutionToolResultBlock]/content response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #3 to the model response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added code_execution_20260120 discriminator mapping keys to the content/items/oneOf[subschema #4: ResponseToolUseBlock]/caller response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added code_execution_20260120 discriminator mapping keys to the content/items/oneOf[subschema #5: ResponseServerToolUseBlock]/caller response property for the response status 200

    response-property-discriminator-mapping-added

• Feb 7, 2026fee5dc365a49○2See the full diff
  • ○

    added the new optional request property speed

    new-optional-request-property

  • ○

    added the required property usage/speed to the response with the 200 status

    response-required-property-added