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POST
Fork a thread from a message.

Authorizations

Authorization
string
header
required

Bearer JWT token or API Key (sk-*).

Path Parameters

id
string
required
messageId
string
required

Body

application/json
version
enum<string>
default:v2

Optional assistant runtime API version for the forked thread. v1 is expired and rejected.

Available options:
v1,
v2
title
string

Optional explicit title for the forked thread. When omitted, orchestration will generate the new thread title.

Required string length: 1 - 120

Response

Thread forked.

Last modified on September 5, 2026