Changes to Send Message

removed the enum value v0-max of the request property modelConfiguration/modelId (media type: application/json)

removed the enum value v0-max of the request property modelConfiguration/modelId (media type: application/x-www-form-urlencoded)

removed the enum value v0-max of the request property modelConfiguration/modelId (media type: multipart/form-data)

removed the enum value v0-max-fast of the request property modelConfiguration/modelId (media type: application/json)

removed the enum value v0-max-fast of the request property modelConfiguration/modelId (media type: application/x-www-form-urlencoded)

removed the enum value v0-max-fast of the request property modelConfiguration/modelId (media type: multipart/form-data)

removed the enum value v0-mini of the request property modelConfiguration/modelId (media type: application/json)

removed the enum value v0-mini of the request property modelConfiguration/modelId (media type: application/x-www-form-urlencoded)

removed the enum value v0-mini of the request property modelConfiguration/modelId (media type: multipart/form-data)

removed the enum value v0-pro of the request property modelConfiguration/modelId (media type: application/json)

removed the enum value v0-pro of the request property modelConfiguration/modelId (media type: application/x-www-form-urlencoded)

removed the enum value v0-pro of the request property modelConfiguration/modelId (media type: multipart/form-data)

the modelConfiguration/modelId request property type changed from string to no type (media type: application/json)

added subschema #1 subschema #2 to the modelConfiguration/modelId request property anyOf list (media type: application/json)

added subschema #1 subschema #2 to the modelConfiguration/modelId request property anyOf list (media type: application/x-www-form-urlencoded)

added subschema #1 subschema #2 to the modelConfiguration/modelId request property anyOf list (media type: multipart/form-data)

the modelConfiguration/modelId request property type was generalized from string to no type (media type: application/x-www-form-urlencoded)

the modelConfiguration/modelId request property type was generalized from string to no type (media type: multipart/form-data)

added the new optional request property designMode (media type: application/json)

added the new optional request property designMode (media type: application/x-www-form-urlencoded)

added the new optional request property designMode (media type: multipart/form-data)

the request property message became optional (media type: application/json)

the request property message became optional (media type: application/x-www-form-urlencoded)

the request property message became optional (media type: multipart/form-data)

response property parts/items/oneOf[subschema #8]/data/anyOf[subschema #3]/requestedNpmRegistryIds deprecated

added subschema #2 subschema #3 to the parts/items/oneOf[subschema #8]/data/anyOf[subschema #4] response property oneOf list for the response status 200

removed subschema #2 from the parts/items/oneOf[subschema #8]/data/anyOf[subschema #4] response property oneOf list for the response status 200

added the required property parts/items/oneOf[subschema #8]/data/anyOf[subschema #3]/requestedNpmRegistryIds to the response with the 200 status

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

the attachments/items request property type changed from object to no type (media type: application/json)

removed the request property attachments/items/url (media type: application/json)

removed the request property attachments/items/url (media type: application/x-www-form-urlencoded)

removed the request property attachments/items/url (media type: multipart/form-data)

added subschema #1 subschema #2 to the attachments/items request property anyOf list (media type: application/json)

added subschema #1 subschema #2 to the attachments/items request property anyOf list (media type: application/x-www-form-urlencoded)

added subschema #1 subschema #2 to the attachments/items request property anyOf list (media type: multipart/form-data)

the attachments/items request property type was generalized from object to no type (media type: application/x-www-form-urlencoded)

the attachments/items request property type was generalized from object to no type (media type: multipart/form-data)

added the optional property parts/items/oneOf[subschema #7]/suggestedPermissions/items/toolDisplayName to the response with the 200 status

added the optional property parts/items/oneOf[subschema #7]/toolDisplayName to the response with the 200 status

added subschema #4 to the parts/items/oneOf[subschema #8]/data response property anyOf list for the response status 200

for the path request parameter chatId, the minLength was increased from 0 to 1

removed subschema #1 subschema #2 subschema #3 from the skills/items request property anyOf list

removed the enum value v0-auto of the request property modelConfiguration/modelId

the message request property's minLength was increased from 0 to 1

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

removed the required property apiUrl from the response with the 200 status

removed the required property error from the response with the 401 status

removed the required property error from the response with the 403 status

removed the required property error from the response with the 404 status

removed the required property error from the response with the 422 status

removed the required property error from the response with the 500 status

removed the required property favorite from the response with the 200 status

removed the required property messages from the response with the 200 status

removed the required property metadata from the response with the 200 status

removed the required property object from the response with the 200 status

removed the required property permissions from the response with the 200 status

removed the required property privacy from the response with the 200 status

removed the required property shareable from the response with the 200 status

removed the required property text from the response with the 200 status

removed the required property url from the response with the 200 status

removed the required property webUrl from the response with the 200 status

removed the request property action

removed the request property attachedSkillIds

removed the request property modelConfiguration/thinking

removed the request property responseMode

removed the request property system

removed the optional property demo from the response with the 200 status

removed the optional property files from the response with the 200 status

removed the optional property latestVersion from the response with the 200 status

removed the optional property modelConfiguration from the response with the 200 status

removed the optional property name from the response with the 200 status

removed the optional property projectId from the response with the 200 status

removed the optional property title from the response with the 200 status

removed the optional property vercelProjectId from the response with the 200 status

api operation id chats.sendMessage removed and replaced with messages.send

the endpoint scheme security apiKey was removed from the API

api tag Messages added

api tag chats removed

added the new optional request property systemPrompt

added the media type application/x-www-form-urlencoded to the request body

added the media type multipart/form-data to the request body

the request property modelConfiguration/imageGenerations with a default value became required

the request property modelConfiguration/modelId with a default value became required

the attachments request property default value was removed

added subschema #1 subschema #2 subschema #3 to the skills/items request property oneOf list

removed the non-success response with the status 409

removed the non-success response with the status 413

removed the non-success response with the status 429

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

the response property updatedAt became required for the status 200

the updatedAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was added for the status 200

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

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

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

added the required property message to the response with the 401 status

added the required property message to the response with the 403 status

added the required property message to the response with the 404 status

added the required property message to the response with the 422 status

added the required property message to the response with the 500 status

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

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

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

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

added the new v0-opus-4.7-fast enum value to the modelConfiguration/modelId response property for the response status 200

added the new optional request property skills

added the new v0-opus-4.7 enum value to the modelConfiguration/modelId response property for the response status 200

added the new optional request property action

added the new optional request property attachedSkillIds

request property modelConfiguration/modelId reactivated

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

response property modelConfiguration/modelId reactivated

added the new optional request property mcpServerIds

added the new design-mode enum value to the messages/items/type response property for the response status 200

added the new v0-auto enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-auto enum value to the request property modelConfiguration/modelId

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

added the new cloned-repo enum value to the messages/items/type response property for the response status 200

added the new manual-commit enum value to the messages/items/type response property for the response status 200

added the new v0-max-fast enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-max-fast enum value to the request property modelConfiguration/modelId

removed the unknown enum value from the messages/items/finishReason response property for the response status 200

removed the enum value v0-1.5-lg of the request property modelConfiguration/modelId

removed the enum value v0-1.5-md of the request property modelConfiguration/modelId

removed the enum value v0-1.5-sm of the request property modelConfiguration/modelId

removed the enum value v0-gpt-5 of the request property modelConfiguration/modelId

removed the enum value v0-opus-4.5 of the request property modelConfiguration/modelId

removed the required property messages/items/experimental_content/items/anyOf[subschema #2]/prefixItems[subschema #2]/~standard from the response with the 200 status

added the new answered-questions enum value to the messages/items/type response property for the response status 200

added the new fix-cve enum value to the messages/items/type response property for the response status 200

added the new pull-changes enum value to the messages/items/type response property for the response status 200

added the new v0-max enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-mini enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-pro enum value to the modelConfiguration/modelId response property for the response status 200

the modelId request property default value changed from v0-1.5-md to v0-pro

added the new v0-max enum value to the request property modelConfiguration/modelId

added the new v0-mini enum value to the request property modelConfiguration/modelId

added the new v0-pro enum value to the request property modelConfiguration/modelId

the modelId response's property default value changed from v0-1.5-md to v0-pro for the status 200

removed the v0-1.5-lg enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-1.5-md enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-1.5-sm enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-gpt-5 enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-opus-4.5 enum value from the modelConfiguration/modelId response property for the response status 200

added the required property messages/items/experimental_content/items/anyOf[subschema #2]/prefixItems[subschema #2]/apply to the response with the 200 status

added the required property messages/items/experimental_content/items/anyOf[subschema #2]/prefixItems[subschema #2]/exactOptional to the response with the 200 status

added the required property messages/items/experimental_content/items/anyOf[subschema #2]/prefixItems[subschema #2]/toJSONSchema to the response with the 200 status

added the required property messages/items/experimental_content/items/anyOf[subschema #2]/prefixItems[subschema #2]/with to the response with the 200 status

added the new v0-opus-4.5 enum value to the modelConfiguration/modelId response property for the response status 200

added the new optional request property system

added the new v0-opus-4.5 enum value to the request property modelConfiguration/modelId

added the optional property messages/items/attachments to the response with the 200 status

added subschema #1 subschema #2 to the messages/items/experimental_content/items response property anyOf list for the response status 200

removed subschema #1 subschema #2 from the messages/items/experimental_content/items response property anyOf list for the response status 200

the createdAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was added for the status 200

the latestVersion/createdAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was added for the status 200

the latestVersion/updatedAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was added for the status 200

the messages/items/updatedAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was added for the status 200

added 'propertyNames' constraint to the files/items/meta response property for the status 200

added the required property messages/items/authorId to the response with the 200 status

added the optional property latestVersion/screenshotUrl to the response with the 200 status

the modelId request property default value v0-1.5-md was added

the modelId response's property default value v0-1.5-md was added for the status 200

the response property modelConfiguration/modelId became optional for the status 200

the request property modelConfiguration/modelId became optional

request property modelConfiguration/modelId deprecated

added the optional property messages/items/parentId to the response with the 200 status

response property modelConfiguration/modelId deprecated

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

added the new experimental_stream enum value to the request property responseMode

the request property modelConfiguration/modelId became required

removed the enum value experimental_stream of the request property responseMode

removed the enum value v0-auto of the request property modelConfiguration/modelId

removed the enum value v0-max of the request property modelConfiguration/modelId

removed the enum value v0-max-fast of the request property modelConfiguration/modelId

removed the enum value v0-mini of the request property modelConfiguration/modelId

removed the enum value v0-pro of the request property modelConfiguration/modelId

removed 'propertyNames' constraint from the files/items/meta response property for the status 200

removed the required property messages/items/authorId from the response with the 200 status

removed the required property metadata from the response with the 200 status

removed the required property permissions from the response with the 200 status

removed the request property action

removed the request property attachedSkillIds

removed the request property mcpServerIds

removed the request property system

removed the optional property latestVersion/screenshotUrl from the response with the 200 status

removed the optional property messages/items/attachments from the response with the 200 status

removed the optional property messages/items/parentId from the response with the 200 status

removed the optional property vercelProjectId from the response with the 200 status

added the new unknown enum value to the messages/items/finishReason response property for the response status 200

added the new v0-1.5-lg enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-1.5-md enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-1.5-sm enum value to the modelConfiguration/modelId response property for the response status 200

added the new v0-gpt-5 enum value to the modelConfiguration/modelId response property for the response status 200

the modelId request property default value v0-pro was removed

added the new v0-1.5-lg enum value to the request property modelConfiguration/modelId

added the new v0-1.5-md enum value to the request property modelConfiguration/modelId

added the new v0-1.5-sm enum value to the request property modelConfiguration/modelId

added the new v0-gpt-5 enum value to the request property modelConfiguration/modelId

added subschema #1 subschema #2 to the messages/items/experimental_content/items response property anyOf list for the response status 200

removed subschema #1 subschema #2 from the messages/items/experimental_content/items response property anyOf list for the response status 200

the response property modelConfiguration/modelId became required for the status 200

the modelId response's property default value v0-pro was removed for the status 200

removed the answered-questions enum value from the messages/items/type response property for the response status 200

removed the cloned-repo enum value from the messages/items/type response property for the response status 200

removed the design-mode enum value from the messages/items/type response property for the response status 200

removed the fix-cve enum value from the messages/items/type response property for the response status 200

removed the manual-commit enum value from the messages/items/type response property for the response status 200

removed the pull-changes enum value from the messages/items/type response property for the response status 200

removed the v0-auto enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-max enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-max-fast enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-mini enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-opus-4.7 enum value from the modelConfiguration/modelId response property for the response status 200

removed the v0-pro enum value from the modelConfiguration/modelId response property for the response status 200

the createdAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was removed for the status 200

the latestVersion/createdAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was removed for the status 200

the latestVersion/updatedAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was removed for the status 200

the messages/items/updatedAt response's property pattern ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ was removed for the status 200