33 model IDs have a shutdown date in October 2026. 28 of them are OpenAI's, and they all go off on October 23 . If any of these strings live in your config, env vars, eval harness or a hard-coded model picker, now's the time to grep for them.
Source: [Dev.to](https://dev.to/toolweather/ai-models-retired-or-deprecated-this-month-october-2026-3m3g)