ChatGPTRetirementConfirmed
ChatGPTCorrection: Corrected 22 Oct 2026: we added the fine-tuned models ft-davinci-002 and ft-o4-mini-2025-04-16, fixed the substitute for gpt-image-1 to gpt-image-2.5-sunburst or gpt-image-2.5-flare, and removed a claim that ChatGPT plans are unaffected, which OpenAI's page doesn't make.
OpenAI shut down a set of older API models on October 23, 2026, after announcing their deprecation on April 22, 2026.
- The list includes gpt-3.5-turbo (gpt-3.5-turbo-0125), gpt-4 (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 and o4-mini, plus fine-tuned versions of gpt-3.5-turbo, gpt-4, gpt-4.1-nano, babbage-002 and davinci-002, and ft-o4-mini-2025-04-16.
- Recommended substitutes are gpt-5.6-terra, gpt-5.6-sol (with reasoning.mode: pro for o1-pro), gpt-5.6-luna and, for gpt-image-1, gpt-image-2.5-sunburst or gpt-image-2.5-flare.
- OpenAI says some developers may be able to provision dedicated capacity for continued access after a shutdown date.
- Who can use it
- OpenAI API developers still calling any of the listed snapshots or their fine-tuned versions.
- When
Deprecation announced April 22, 2026. OpenAI's deprecations page now says access 'was shut down on October 23, 2026'; no time was given.