OpenAI — Older GPT-5 and o3 model snapshots shuts down 2026-12-11

Provider: OpenAI (OpenAI API)
Status: deprecated · Type: model
Shutdown: 2026-12-11
Successor: Current GPT-5 / o3 snapshots
Migration: Pin to a current snapshot id before the shutdown date.
Source: https://developers.openai.com/api/docs/deprecations · as_of 2026-06-17