OpenAIretiredhard

Assistants API

Platform API sunset. Threads/runs need a real migration.

DeprecatedYes

Shutdown2026-08-26

Statusretired

ReplacementResponses API + Conversations API

Already retiredThis id is past its shutdown date. Keep this page for migration archaeology only.

Quick fix — copy & paste

Breaks on 2026-08-26

model = "Assistants API"

Use this instead

model = "Responses API + Conversations API"