Field guide · counted in UTC days
Extinction Watch
Models and APIs about to disappear, taken from the shutdown dates in our stories. Migrate before they do. The count updates each time you open the page.
Going extinct
- SEP 28Shuts downOpenAI hard-removes legacy instruct/base models on 2026-09-28gpt-3.5-turbo-instruct, babbage-002, davinci-002, gpt-3.5-turbo-1106Move to gpt-5.6-terra