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The AI model your business runs on is being retired: the 2026 shutdown calendar

This story is from 2026-09-21. It is preserved in the archive; the latest stories are on the live feed.

OpenAI already shut down the Assistants API on 26 August 2026. The next cutoffs are 24 September, when it retires the Videos API and sora-2 ; 28 September, for the last legacy completion snapshots; and 23 October, for gpt-3.5-turbo and gpt-4 . If your business runs a chatbot, an email classifier or…

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  1. 2026-09-21 08:20 · DEV Community — AI
    The AI model your business runs on is being retired: the 2026 shutdown calendar

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