23 October 2026
OpenAI GPT-3.5 Turbo stops receiving security updates. This name is a rolling alias; the date is the one published for gpt-3.5-turbo-0125, gpt-3.5-turbo-1106 and gpt-3.5-turbo-instruct. Released 1 Mar 2023. Source: endoflife.date.
Version End-of-Life Dates calendar