Update message
Threads
Update message
Update a message’s content and/or metadata.
PATCH
Update message
Authorizations
Authorization Bearer Token
Headers
Query Parameters
Body
application/json
Response
Successful Response
Thread message shape returned by the thread API.
parts are opt-in so existing clients keep the previous response shape by default.
parts
(MessageTextPart · object | MessageReasoningPart · object | MessageFilePart · object | MessageDataPart · object | MessageToolCallPart · object | MessageToolErrorPart · object | MessageToolResultPart · object)[] | null
A text part persisted alongside a thread message.
- MessageTextPart
- MessageReasoningPart
- MessageFilePart
- MessageDataPart
- MessageToolCallPart
- MessageToolErrorPart
- MessageToolResultPart
Last modified on June 18, 2026