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Everything OpenAI is sunsetting

8 things OpenAI has scheduled to be taken away — soonest first. Each links to OpenAI’s own announcement.

API →6 days

OpenAI OpenAI is removing its Sora 2 video-generation models and the Videos API from the platform — sora-2, sora-2-pro and their dated snapshots stop responding, with no direct replacement named

API →35 days

OpenAI OpenAI is removing a large batch of older chat and reasoning models from the API on 23 October 2026 — including gpt-4 (gpt-4-0613), gpt-3.5-turbo, gpt-4-turbo, gpt-4.1-nano, the gpt-4o-2024-05-13 snapshot, o1, o1-pro, o3-mini and o4-mini — directing developers to the gpt-5.6 family

API →11 weeks

OpenAI OpenAI is deprecating three GPT Image generation models — gpt-image-1-mini, gpt-image-1.5 and chatgpt-image-latest — and removing them from the API, directing developers to gpt-image-2

API →12 weeks

OpenAI OpenAI is removing the dated GPT-5 and o3 model snapshots — gpt-5-2025-08-07, gpt-5-mini-2025-08-07, gpt-5-nano-2025-08-07, gpt-5-pro-2025-10-06, o3-2025-04-16 and o3-pro-2025-06-10 — from the API on 11 December 2026, directing developers to the gpt-5.6 family

API →18 weeks

OpenAI OpenAI has deprecated a family of older audio, realtime, and speech-to-text API models — including gpt-realtime, gpt-audio, and the gpt-4o audio/realtime line — and will remove them from the API on 20 January 2027

API →23 weeks

OpenAI OpenAI has deprecated its older speech-to-text API models — whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, and gpt-4o-transcribe-diarize — and will remove them from the API on 26 February 2027

Browser ↙gone

OpenAI The standalone ChatGPT Atlas browser stops working; agentic browsing folds into ChatGPT

API ↙gone

OpenAI OpenAI has deprecated the Assistants API and will remove it from the platform on 26 August 2026, directing developers to the newer Responses API

Other vendors on the board