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- Oct 23, 202675% CONFIDENCEfrom the source
OpenAI Retires 17 Legacy GPT Model Snapshots
- Announced on 2026-04-22, this is the page's largest upcoming batch: shutdown on October 23, 2026 for a set of legacy GPT model snapshots[1]
- The base models going are gpt-3.5-turbo-0125, gpt-4-0613, gpt-4-1106-preview, gpt-4-turbo, gpt-4.1-nano, gpt-4o-2024-05-13, gpt-image-1, o1, o1-pro, o3-mini, o4-mini and ft-o4-mini-2025-04-16[1]
- Fine-tuned versions are shut down alongside them: ft-gpt-3.5-turbo, ft-gpt-4, ft-gpt-4.1-nano-2025-04-14, ft-babbage-002 and ft-davinci-002[1]
- The substitutes named for the batch are gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna and gpt-image-2[1]
- Under the page's policy, "When we announce that a model or endpoint is being deprecated, it immediately becomes deprecated. All deprecated models and endpoints will also have a shut down date", and generally available models get at least 6 months' notice; the April-to-October gap here matches that[1]
- "Impacted customers will always be notified by email and in our documentation along with blog posts for larger changes", and "In some cases, developers may be able to provision dedicated capacity for continued access after a model's shutdown date"[1]
References 280% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]75%platform.openai.com/docs/deprecations#2026-04-22-legacy-gpt-model-snapshotsplatform.openai.com· Posted Sep 20, 2026· Starts Oct 23, 2026 ✓· 50% of score
OpenAI's[2] own deprecation page, announced 2026-04-22, gives the shutdown date as 23 October 2026. A shutdown date is the vendor's commitment to developers and is occasionally pushed back, never brought forward.
- [2]85%OpenAI deprecationsplatform.openai.com· Added Sep 20, 2026· 50% of score
OpenAI's[1] full deprecation index, which lists every announcement and the notice period each model gets; this pin's own section is its source.
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